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Youmans Neurological Surgery E-Book

Youmans Neurological Surgery E-Book

H. Richard Winn

(2011)

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Book Details

Abstract

Effectively perform today’s most state-of-the-art neurosurgical procedures with Youmans Neurological Surgery, 6th Edition, edited by H. Richard Winn, MD. Still the cornerstone of unquestioned guidance on surgery of the nervous system, the new edition updates you on the most exciting developments in this ever-changing field. In print and online, it provides all the cutting-edge details you need to know about functional and restorative neurosurgery (FRN)/deep brain stimulation (DBS), stem cell biology, radiological and nuclear imaging, neuro-oncology, and much more. And with nearly 100 intraoperative videos online at www.expertconsult.com, as well as thousands of full-color illustrations, this comprehensive, multimedia, 4-volume set remains the clinical neurosurgery reference you need to manage and avoid complications, overcome challenges, and maximize patient outcomes.

  • Overcome any clinical challenge with this comprehensive and up-to-date neurosurgical reference, and ensure the best outcomes for your patients.
  • Rely on this single source for convenient access to the definitive answers you need in your practice.
  • Successfully perform functional and restorative neurosurgery (FRN) with expert guidance on the diagnostic aspects, medical therapy, and cutting-edge approaches shown effective in the treatment of tremor, Parkinson’s disease, dystonia, and psychiatric disorders.
  • Sharpen your neurosurgical expertise with updated and enhanced coverage of complication avoidance and intracranial pressure monitoring, epilepsy, neuro-oncology, pain, peripheral nerve surgery, radiosurgery/radiation therapy, and much more.
  • Master new techniques with nearly 100 surgical videos online of intraoperative procedures including endoscopic techniques for spine and peripheral nerve surgery, the surgical resection for spinal cord hemangiomas, the resection of a giant AVM; and the radiosurgical and interventional therapy for vascular lesions and tumors.
  • Confidently perform surgical techniques with access to full-color anatomic and surgical line drawings in this totally revised illustration program.
  • Get fresh perspectives from new section editors and authors who are all respected international authorities in their respective neurosurgery specialties.
  • Conveniently search the complete text online, view all of the videos, follow links to PubMed, and download all images at www.expertconsult.com.

Table of Contents

Section Title Page Action Price
e9781416053163v1 1
Front cover 1
Front Matter 3
Youmans Neurological Surgery 5
Copyright page 6
Dedication 7
EDITOR-IN-CHIEF 8
Section Editors 9
Video Editors 13
Table of contents 15
Contributors 33
Preface 93
SECTION I: Introduction to Neurological Surgery 95
Chapter 1: Historical Overview of Neurosurgery 97
NEUROSURGERY IN THE PREHISTORIC PERIOD 97
ANCIENT EGYPTIAN NEUROSURGERY 97
CLASSICAL PERIOD— GREEK AND BYZANTINE NEUROSURGERY 98
ISLAMIC/ARABIC MEDICINE—PRESCHOLASTIC PERIOD 102
MIDDLE AGES—THE AGE OF MEDIEVAL MEDICAL SCHOLASTICISM 104
ORIGINS OF NEUROSURGICAL PRACTICE IN THE RENAISSANCE 108
SURGEONS OF THE INSURGENCY— 17th CENTURY 115
EIGHTEENTH CENTURY—AN ENLIGHTENED PERIOD FOR NEUROSURGERY 119
NINETEENTH CENTURY—INCUNABULA PERIOD OF MODERN NEUROSURGERY 124
CONCLUSION 131
suggested readings 131
Chapter 2: Surgical Anatomy of the Brain 132
CEREBRUM 132
POSTERIOR FOSSA 145
suggested readings 156
Chapter 3: Molecular Biology Primer for Neurosurgeons 157
THE CANDIDATE GENE APPROACH 157
THE RISE OF FUNCTIONAL GENOMICS 165
CONCLUSION 171
suggested readings 171
Chapter 4: Neuroembryology 172
CLASSIC NEUROEMBRYOLOGY 172
DEVELOPMENTAL ORGANIZATION: STAGES, GENES, AND REGULATORY FACTORS 174
FLEXURES AND SULCI OF THE BRAIN 182
DEVELOPMENTAL PATTERNS AND DISORDERS 182
CONCLUSION 190
suggested readings 191
Chapter 5: Stem Cell Biology in the Central Nervous System 192
Stem Cells and Progenitors 192
Neurogenesis: Location and Function 192
Gliogenesis 195
Neural Stem Cells in the Spinal Cord 196
Stem Cell and Progenitor Response to Injury 196
Evidence for Adult Human Neurogenesis 197
Stem Cells and Cancer 197
Stem Cell–Based Therapies 197
Stem Cell Imaging 199
Conclusion 199
suggested readings 199
Chapter 6: Neurons and Neuroglia 200
NEURONS 200
NEUROGLIA 208
TRANSPLANTATION THERAPIES 215
Acknowledgment 216
suggested readings 216
Chapter 7: Cellular Mechanisms of Brain Energy Metabolism 217
Brain Work Supports Information Processing 217
Brain Work Maintains Ion Concentrations 218
Brain Energy Metabolism Enables Brain Work 219
HomeostaTic Mechanisms Maintain Constant Adenosine Triphosphate 224
Metabolic Compartments Exchange Pyruvate and Lactate 227
Activation Perturbs Metabolic Compartments Differentially 232
Conclusion 239
suggested readings 240
Chapter 8: Blood-Brain Barrier 241
HISTORY 241
ANATOMY OF THE BLOOD-BRAIN BARRIER 241
TRANSPORT ACROSS THE BLOOD-BRAIN BARRIER 243
TIGHT JUNCTIONS 246
TIGHT JUNCTION REGULATION 246
PATHOLOGIC CHANGES IN THE BLOOD-BRAIN BARRIER 247
CENTRAL NERVOUS SYSTEM DRUG ADMINISTRATION AND THE BLOOD-BRAIN BARRIER 248
IMAGING THE BLOOD-BRAIN BARRIER 251
FUTURE CONSIDERATIONS 254
suggested readings 254
Chapter 9: Cerebral Edema 256
Overview and Historical Background 256
The Blood-Brain Barrier 256
Molecular Events in Cerebral Edema 256
Neuroimaging Studies and Classification of Cerebral Edema 260
Treatment of Cerebral Edema 260
suggested readings 262
Chapter 10: Physiology of the Cerebrospinal Fluid and Intracranial Pressure 263
HISTORICAL CONSIDERATIONS 263
NORMAL INTRACRANIAL PRESSURE 263
PHYSICAL PRINCIPLES 264
STEADY-STATE DYNAMICS 264
NON–STEADY-STATE DYNAMICS 267
INTRACRANIAL PRESSURE MONITORING 270
METHODS OF INTRACRANIAL PRESSURE MEASUREMENT 271
MANAGEMENT OF INTRACRANIAL PRESSURE 272
PRACTICAL ISSUES 275
Acknowledgments 275
suggested readings 275
Chapter 11: Neurosurgical Epidemiology and Outcomes Assessment 277
CONCEPTS—SOURCES OF ERROR IN ANALYSIS 277
STATISTICS AND PROBABILITY IN DIAGNOSIS 279
MEASUREMENT IN CLINICAL NEUROSURGERY 280
SPECIFIC STUDY DESIGNS 283
EVIDENCE-BASED APPROACH TO PRACTICE 294
suggested readings 296
Chapter 12: Altered Consciousness 297
A BRIEF TAXONOMY 297
COMA 297
VEGETATIVE STATE 298
MINIMALLY CONSCIOUS STATE 298
AKINETIC MUTISM 299
AN ORGANIZING STRATEGY TO ASSESS DISORDERS OF CONSCIOUSNESS BASED ON ANATOMIC AND PHYSIOLOGIC CONSIDERATIONS 299
A GUIDE TO FORMULATING PROGNOSIS IN PATIENTS WITH DISORDERS OF CONSCIOUSNESS 300
EMERGING ROLE OF NEUROIMAGING IN ALTERED CONSCIOUSNESS: OPPORTUNITIES AND LIMITATIONS 301
suggested readings 301
Chapter 13: Neuroophthalmology 302
FROM THE EYE TO THE VISUAL CORTEX: AFFERENT ASPECTS OF VISION 302
OCULAR MOTILITY AND THE PUPIL: THE EFFERENT VISUAL SYSTEM 317
SYMPTOMATIC TREATMENT OF DIPLOPIA 320
CONCLUSION 324
suggested readings 325
Chapter 14: Neurotology 326
ANATOMY OF THE INNER EAR 326
THE COCHLEAR SYSTEM 326
MEASURES OF AUDITORY SYSTEM FUNCTION 328
THE VESTIBULAR SYSTEM 335
TESTS OF VESTIBULAR FUNCTION 338
DIFFERENTIAL DIAGNOSIS OF VERTIGO 343
INDICATIONS FOR VESTIBULAR NEURECTOMY 347
INDICATIONS FOR COCHLEAR IMPLANTATION 347
suggested readings 349
Chapter 15: Neurourology 350
UROLOGIC STRUCTURES AND INNERVATION 350
NEUROANATOMY AND PHYSIOLOGY OF THE LOWER URINARY TRACT 352
EVALUATION OF NEUROUROLOGIC DISORDERS 353
NEUROUROLOGIC DISEASES 358
TREATMENT OF NEUROUROLOGIC DISEASES 361
suggested readings 364
Chapter 16: Neuropsychological Testing 366
Clinical Assessment 366
Clinical Interventions 367
Quantifying Recovery of Function after Brain Surgery 367
Prediction of Performance in Real-Life Circumstances 368
Treatment Trials 368
Advances in Cognitive Neuroscience 368
Case Example: Neuropsychology and Cancer 369
Discussion and Future Directions 369
suggested readings 370
Chapter 17: Computed Tomography and Magnetic Resonance Imaging of the Brain 371
COMPUTED TOMOGRAPHY OF THE BRAIN 371
MAGNETIC RESONANCE IMAGING OF THE BRAIN 374
suggested readings 404
Chapter 18: Radiology of the Spine 405
IMAGING OF THE SPINE 405
TECHNICAL CONSIDERATIONS 405
DEGENERATIVE DISK DISEASE AND STENOSIS 411
MORPHOLOGIC AND FUNCTIONAL SEQUELAE 417
SIGNIFICANCE OF IMAGING FINDINGS 419
Osteomyelitis 421
IMAGING OF VASCULAR DISORDERS OF THE SPINE 437
POSTOPERATIVE IMAGING OF THE SPINE AND SPINAL CORD 443
EVALUATION OF SPINE TRAUMA 445
suggested readings 448
Chapter 19: Physiologic Evaluation of the Brain with Magnetic Resonance Imaging 449
Diffusion-Weighted Imaging 449
Diffusion Tensor Imaging and Tractography 451
Magnetic Resonance Angiography 454
Phase-Contrast Magnetic Resonance Imaging of Cerebrospinal Fluid Flow 458
Perfusion-Weighted Imaging 461
Functional Magnetic Resonance Imaging 464
Proton Magnetic Resonance Spectroscopy 466
suggested readings 469
Chapter 20: Molecular Imaging of the Brain with Positron Emission Tomography 470
BASIC PRINCIPLES OF POSITRON EMISSION TOMOGRAPHY 470
POSITRON EMISSION TOMOGRAPHY FOR THE ASSESSMENT OF BIOLOGIC DISEASE PROCESSES IN THE BRAIN 474
DETECTION AND DIAGNOSIS OF NEUROLOGICAL DYSFUNCTION 474
CLINICAL APPLICATIONS 478
IN VIVO DRUG MONITORING 485
CONCLUSION 486
suggested readings 486
Section II: General Neurosurgery 487
Chapter 21: Neuroanesthesia: 489
GENERAL PREANESTHETIC EVALUATION 490
LABORATORY INVESTIGATIONS 494
CONCLUSION 501
suggested readings 501
Chapter 22: Avoidance of Complications in Neurosurgery 502
COMPLICATIONS RELATED TO PATIENT POSITIONING 502
CATASTROPHIC MEDICAL COMPLICATIONS 504
RISK FACTORS RELATED TO ANATOMY OR TECHNIQUE IN SPECIFIC SURGERIES 505
CONCLUSION 517
suggested readings 517
Chapter 23: Intracranial Pressure Monitoring 518
HISTORICAL PERSPECTIVE 518
GENERAL PRINCIPLES AND STANDARD OF INTRACRANIAL PRESSURE MONITORING TECHNOLOGY 518
CURRENT INTRACRANIAL PRESSURE MONITORING TECHNOLOGY 518
EMERGING TECHNOLOGY 521
PEDIATRIC INTRACRANIAL PRESSURE MONITORING 521
CONCLUSION 522
suggested readings 522
Chapter 24: Principles of Neurocritical Care 523
ASSESSMENT OF IMPAIRED CONSCIOUSNESS 523
ASSESSMENT OF THE AIRWAY AND NEED FOR MECHANICAL VENTILATION 524
ASSESSMENT OF VOLUME STATUS AND BLOOD PRESSURE 525
ASSESSMENT OF INFECTION POTENTIAL 526
ASSESSMENT OF SEIZURES 526
ASSESSMENT OF NUTRITIONAL NEEDS 527
ASSESSMENT OF PROPHYLAXIS AND NEED FOR ANTICOAGULATION 528
ASSESSMENT OF INTRACRANIAL PRESSURE 529
MONITORING OF DETERIORATION AFTER ACUTE BRAIN INJURY 529
CONCLUSION 530
suggested readings 531
Chapter 25: Surgical Planning: 532
PREOPERATIVE EVALUATION 532
RADIOGRAPHIC IMAGING 533
ANESTHESIA 533
SELECTION OF SURGICAL APPROACH 534
CONCLUSION 535
Chapter 26: Positioning for Cranial Surgery 536
PTERIONAL (FRONTOTEMPORAL) CRANIOTOMY 536
TEMPORAL AND SUBTEMPORAL APPROACH 536
ANTERIOR PARASAGITTAL AND SUBFRONTAL APPROACHES 537
POSTERIOR PARASAGITTAL CRANIOTOMY 537
MIDLINE SUBOCCIPITAL CRANIOTOMY 538
LATERAL SUBOCCIPITAL APPROACH 538
TRANSSPHENOIDAL APPROACH 540
CONCLUSION 540
suggested readings 540
Chapter 27: Patient Positioning for Spinal Surgery 541
EQUIPMENT 541
PRINCIPLES OF POSITIONING 541
SPECIFIC PROCEDURES 545
CONCLUSION 546
suggested readings 546
Chapter 28: Positioning in Peripheral Nerve Surgery 547
ANATOMY, POSITIONING, AND SURGICAL EXPOSURE 547
suggested readings 552
Chapter 29: Incisions and Closures 553
WOUND HEALING 553
INDICATIONS FOR ANTIBIOTICS 553
INCISION 554
CLOSURE 558
CONCLUSION 559
suggested readings 559
Chapter 30: Advantages and Limitations of Cranial Endoscopy 560
HISTORY OF ENDOSCOPY 560
ENDOSCOPIC INSTRUMENTATION AND GENERAL PRINCIPLES 560
LIMITATIONS OF ENDOSCOPE USE IN INTRACRANIAL SURGERY 564
CONCLUSION 564
suggested readings 565
Chapter 31: Thorascopic Spine Surgery 566
PRINCIPLES 566
INDICATIONS 566
TECHNICAL REQUIREMENTS 566
PREOPERATIVE REQUIREMENTS 567
OPERATIVE TECHNIQUES 568
SPECIAL INDICATIONS 570
CONCLUSION 574
suggested readings 574
Chapter 32: Cranioplasty 575
DIAGNOSTIC EVALUATION 575
PREOPERATIVE MANAGEMENT 575
CRANIOPLASTY MATERIAL OPTIONS 577
OPERATIVE TECHNIQUE 578
POSTOPERATIVE CARE 578
COMMON PITFALLS AND COMPLICATIONS 578
CONCLUSION 580
suggested readings 580
Chapter 33: Production and Flow of Cerebrospinal Fluid 581
INTRICATE FLUID BALANCE WITHIN THE CENTRAL NERVOUS SYSTEM 581
VARIATION IN CEREBROSPINAL FLUID PRODUCTION 581
MECHANISMS OF CEREBROSPINAL FLUID FORMATION BY CHOROID PLEXUS 581
REGULATION OF CEREBROSPINAL FLUID FORMATION 583
CEREBROSPINAL FLUID FORMATION RATE IN HYDROCEPHALUS 584
CEREBROSPINAL FLUID FLOW 584
INTERRUPTION OF CEREBROSPINAL FLUID FLOW AT VARIOUS LOCI 585
CEREBROSPINAL FLUID TURNOVER RATE 586
TRANSPORT PHENOMENA IN HYDROCEPHALUS: CEREBROSPINAL FLUID–BORDERING CELLS VERSUS BLOOD-BRAIN BARRIER 586
CEREBROSPINAL FLUID DIAGNOSTIC AND MANAGEMENT ISSUES IN ADULT CHRONIC HYDROCEPHALUS 587
CHALLENGES IN RECTIFYING DISTORTED CEREBROSPINAL FLUID DYNAMICS 587
Acknowledgments 587
suggested readings 587
Chapter 34: Clinical Evaluation of Adult Hydrocephalus 588
CLASSIFICATION AND ETIOLOGY 588
PATHOPHYSIOLOGY (see also Chapter 33) 589
INITIAL FEATURES OF HYDROCEPHALUS 590
NORMAL-PRESSURE HYDROCEPHALUS 590
NEURORADIOLOGIC FEATURES OF HYDROCEPHALUS 593
PHYSIOLOGIC TESTING OF CEREBROSPINAL FLUID DYNAMICS 593
MANAGEMENT 601
SHUNTS 604
COMPLICATIONS 606
PATIENT OUTCOMES 607
CONCLUSION 607
suggested readings 607
Chapter 35: Shunting* 609
key point 609
VALVE DESIGN AND TERMINOLOGY 609
key point 610
e9781416053163v2 1259
Front cover 1259
Front Matter 1261
Youmans Neurological Surgery 1263
Copyright page 1264
Dedication 1265
EDITOR-IN-CHIEF 1266
Section Editors 1267
Video Editors 1271
Table of contents 1273
Contributors 1291
Preface 1351
Section V: Oncology 1353
Chapter 95: Brain Tumors: 1355
suggested readings 1356
Chapter 96: Brain Tumors: 1357
ASTROCYTOMAS 1357
OLIGODENDROGLIAL AND OLIGOASTROCYTIC GLIAL TUMORS 1359
EPENDYMAL TUMORS 1359
CHOROID PLEXUS TUMORS 1360
OTHER NEUROEPITHELIAL TUMORS 1360
NEURONAL AND MIXED NEURONAL-GLIAL TUMORS 1360
PINEAL REGION TUMORS 1361
GERM CELL TUMORS 1362
EMBRYONAL TUMORS 1362
TUMORS OF THE MENINGES 1363
TUMORS OF THE SELLAR REGION (EXCLUDING PITUITARY ADENOMA) 1364
LYMPHOMA 1364
METASTATIC TUMORS OF THE CENTRAL NERVOUS SYSTEM 1364
MOLECULAR CLASSIFICATION OF BRAIN TUMORS 1365
suggested readings 1366
Chapter 97: Brain Tumor Immunology and Immunotherapy 1367
A BRIEF HISTORY OF IMMUNOTHERAPY 1367
AN IMMUNE PRIMER 1367
MECHANISMS OF IMMUNE SUPPRESSION AND THERAPEUTIC AGENTS 1369
OVERVIEW: STRATEGIES TO AUGMENT THE IMMUNE RESPONSE 1374
IMMUNOTHERAPEUTIC APPROACHES AND RECENT CLINICAL TRIAL RESULTS 1374
CONCLUSION 1380
suggested readings 1381
Chapter 98: Brain Tumor Stem Cells 1382
THE NEUROSPHERE ASSAY AND DISCOVERY OF ADULT NEUROGENESIS 1382
DEVELOPMENT OF THE BRAIN TUMOR STEM CELL HYPOTHESIS 1382
MARKERS FOR NEURAL STEM CELLS AND BRAIN TUMOR STEM CELLS 1383
CELL OF ORIGIN OF BRAIN TUMOR STEM CELLS 1384
MOLECULAR PATHWAYS DISRUPTED IN BRAIN TUMOR STEM CELLS 1386
CLINICAL IMPLICATIONS AND FUTURE DIRECTIONS 1386
CONCLUSION 1387
suggested readings 1387
Chapter 99: Proliferation Markers in the Evaluation of Gliomas 1388
METHODOLOGIC CONSIDERATIONS 1388
PROLIFERATION MARKERS IN GLIOMA SUBTYPES 1389
suggested readings 1391
Chapter 100: Molecular Genetics and the Development of Targets for Glioma Therapy 1392
MOLECULAR GENETICS OF CANCER: THE ORIGINS OF CANCER GENETICS 1392
MOLECULAR GENETIC TOOLS AND THE STUDY OF CANCER 1393
CELLULAR AND MOLECULAR BIOLOGY OF GLIOMAS 1397
CONCLUSION 1403
suggested readings 1403
Chapter 101: Growth Factors in Glial Tumors 1404
GROWTH FACTORS 1404
INTRACELLULAR SIGNALING 1404
ROLE OF G PROTEINS IN INTRACELLULAR SIGNALING 1406
GROWTH FACTORS INVOLVED IN BRAIN TUMORS 1407
CONCLUSION 1412
suggested readings 1412
Chapter 102: The Genetic Origins of Brain Tumors 1413
CLONAL EXPANSION OF MALIGNANT TUMORS 1413
INHERITED MUTATIONS AND FAMILIAL SYNDROMES 1413
TUMOR SUPPRESSORS, ONCOGENES, AND MUTATOR GENES 1415
DIFFERENT TYPES OF DNA MUTATIONS AND ALTERATIONS 1416
THE SPECTRUM OF MUTATIONS THAT UNDERLIE BRAIN CANCERS 1416
GLIOBLASTOMAS 1417
LOW-GRADE ASTROCYTOMAS AND OLIGODENDROGLIOMAS 1418
MEDULLOBLASTOMAS 1419
PERSPECTIVES IN BRAIN TUMOR GENOMICS AND GENETICS 1420
suggested readings 1420
Chapter 103: Invasion in Malignant Glioma 1421
CLINICAL PATTERNS OF SPREAD 1421
COMPUTED TOMOGRAPHY AND MAGNETIC RESONANCE IMAGING 1422
MECHANISM OF GLIOMA SPREAD 1423
ADHESION MOLECULES IN GLIOMA 1424
EXPERIMENTAL MODELS OF BRAIN TUMOR INVASION 1427
CYTOSTATICS AND ANTI-INVASION THERAPY 1429
suggested readings 1430
Chapter 104: Angiogenesis and Brain Tumors: 1431
HISTORICAL PERSPECTIVE 1431
ANGIOTHERAPY: AN EFFECTIVE, NOVEL APPROACH TO GLIOMA THERAPY 1433
MECHANISMS OF EFFICACY 1435
CLINICAL EXPERIENCE WITH THE USE OF BEVACIZUMAB 1443
BEVACIZUMAB RESISTANCE, VASCULAR ENDOTHELIAL GROWTH FACTOR EVASION, AND GLIOMA RECURRENCE 1446
FUTURE DIRECTIONS 1448
CONCLUSION 1450
suggested readings 1451
Chapter 105: Barriers to Delivery of Therapeutics to Brain Tumors 1452
BLOOD-BRAIN BARRIER 1452
BLOOD-TUMOR BARRIER 1452
BLOOD–CEREBROSPINAL FLUID BARRIER 1453
DRUG MODIFICATIONS FOR ENHANCED DRUG DELIVERY TO BRAIN TUMORS 1453
BARRIER DISRUPTION STRATEGIES FOR ENHANCING DRUG DELIVERY 1455
METHODS FOR DELIVERY OF DRUGS DIRECTLY TO THE BRAIN PARENCHYMA 1456
OTHER APPROACHES FOR ENHANCING DELIVERY OF DRUGS TO THE BRAIN 1457
CONCLUSION 1458
suggested readings 1458
Chapter 106: Epidemiology of Brain Tumors* 1459
DESCRIPTIVE EPIDEMIOLOGY 1459
SURVIVAL TIME FROM DIAGNOSIS OF GLIOMA AND MENINGIOMA 1459
ENVIRONMENTAL RISK FACTORS 1459
REPRODUCTIVE AND MENSTRUAL FACTORS 1462
GLIOMA, ALLERGIC CONDITIONS, INFECTIONS, AND ASSOCIATED IMMUNOLOGIC FACTORS 1463
GENETIC FACTORS 1464
PROGNOSTIC FACTORS FOR GLIOMA, INCLUDING GLIOBLASTOMA 1466
PROGNOSTIC FACTORS FOR MENINGIOMA 1466
CONCLUSION 1467
IMPORTANT UPDATE 1467
suggested readings 1467
Chapter 107: Gene- and Viral-Based Therapies for Gliomas 1468
WHAT IS GENE THERAPY? 1468
HOW IS GENE THERAPY CARRIED OUT? 1468
NONVIRAL VECTORS 1468
VIRAL VECTORS 1469
COMPARISON OF VECTORS 1472
GENES DELIVERED INTO BRAIN TUMORS 1472
ONCOLYTIC VIRUSES 1474
CLINICAL TRIALS OF BRAIN TUMOR GENE THERAPY 1474
CONCLUSION 1475
suggested readings 1475
Chapter 108: Clinical Features: 1477
PATHOPHYSIOLOGY OF SIGNS AND SYMPTOMS ASSOCIATED WITH BRAIN TUMORS 1477
CLINICAL MANIFESTATIONS OF INTRACRANIAL TUMORS 1479
KARNOFSKY PERFORMANCE SCORE 1482
PARANEOPLASTIC DISORDERS 1483
suggested readings 1484
Chapter 109: Radiologic Features of Central Nervous System Tumors 1486
PRINCIPLES OF DIAGNOSIS BY NEURORADIOLOGY 1486
EXTRA-AXIAL MASSES 1490
PINEAL REGION TUMORS 1493
INTRAVENTRICULAR MASSES 1494
INTRA-AXIAL NEOPLASMS 1495
suggested readings 1503
Chapter 110: Endovascular Techniques for Tumor Embolization 1504
EMBOLIZATION TECHNIQUE 1504
EMBOLIC AGENTS 1504
EFFICACY 1504
MENINGIOMAS 1504
JUVENILE NASOPHARYNGEAL ANGIOFIBROMA 1505
PARAGANGLIOMAS 1506
SCHWANNOMAS 1507
HEMANGIOPERICYTOMA 1507
CONCLUSION 1507
suggested readings 1507
Chapter 111: Brain Tumors during Pregnancy 1509
NEUROIMAGING IN PREGNANCY 1509
NEUROANESTHESIA IN PREGNANCY 1509
PITUITARY BRAIN TUMORS 1510
GLIAL TUMORS 1512
MENINGIOMAS 1513
OTHER TUMORS 1514
PSEUDOTUMOR CEREBRI 1514
CONCLUSION 1514
suggested readings 1515
Chapter 112: Principles of Chemotherapy 1516
LIMITATIONS OF CHEMOTHERAPY 1516
GENETIC MARKERS AS PREDICTOR OF CHEMOTHERAPY RESPONSE 1516
PRINCIPLES OF CENTRAL NERVOUS SYSTEM PHARMACOLOGY 1517
APPROACHES TO OVERCOME OBSTACLES OF CHEMOTHERAPY 1517
PHARMACOLOGY OF COMMONLY USED AGENTS 1519
CONCLUSION 1522
suggested readings 1522
Chapter 113: Brain Tumor Outcome Studies: 1523
DEFINING THE PATIENT POPULATION 1523
DESCRIBING TREATMENT— EXTENT OF RESECTION 1525
DESCRIBING OUTCOMES OF BRAIN TUMOR THERAPY: END POINT CHOICES AND DEFINITIONS 1526
SPECIAL CONSIDERATIONS IN SPECIFIC PHASES OF DRUG OR TECHNOLOGY TESTING 1529
SPECIAL CONSIDERATIONS IN SPECIFIC TYPES OF BRAIN TUMOR STUDY DESIGN 1531
suggested reading 1532
Chapter 114: Frame and Frameless Stereotactic Brain Biopsy 1534
HISTORICAL LANDMARKS 1534
BACKGROUND 1534
INDICATIONS FOR STEREOTACTIC BIOPSY 1536
TECHNICAL CONSIDERATIONS 1536
COMPLICATIONS OF STEREOTACTIC BIOPSY 1537
COMPARISON OF FRAME-BASED AND FRAMELESS METHODS 1537
STEREOTACTIC BIOPSY OF BRAINSTEM LESIONS 1538
CONCLUSION 1539
suggested readings 1540
Chapter 115: Basic Principles of Cranial Surgery for Brain Tumors 1541
PREOPERATIVE EVALUATION AND MANAGEMENT 1541
PREOPERATIVE IMAGING INTERPRETATION 1541
TIMING OF SURGERY 1541
SURGICAL PLANNING: IMAGING STUDIES 1542
SURGICAL PREPARATION 1542
POSITIONING 1543
INCISION 1543
CRANIOTOMIES 1543
TUMOR REMOVAL 1544
POSTOPERATIVE CARE 1545
CONCLUSION 1546
suggested readings 1546
Chapter 116: Basic Principles of Skull Base Surgery 1547
Historical Landmarks 1547
Overview of Skull Base Surgery 1547
Surgery on the Anterior Skull Base 1548
Surgery on the Middle and Posterior Skull Base 1554
suggested readings 1564
Chapter 117: Surgical Complications of Brain Tumors and Their Avoidance 1565
DEFINING A COMPLICATION 1565
CLASSIFICATION SCHEMES 1565
PATIENT SELECTION AND AVOIDANCE OF COMPLICATIONS 1565
CONCLUSION 1571
suggested readings 1571
Chapter 118: Navigation for Brain Tumors 1573
FUNDAMENTALS 1573
PROCEDURES 1574
suggested readings 1579
Chapter 119: Endoscopic Approaches to Brain Tumors 1580
OVERVIEW OF ENDOSCOPY IN THE APPROACH TO BRAIN TUMORS 1580
INTRAVENTRICULAR ENDOSCOPY FOR TUMORS 1580
PURELY ENDOSCOPIC APPROACHES TO INTRAVENTRICULAR TUMORS 1582
NEUROENDOSCOPIC MANAGEMENT OF TUMOR-ASSOCIATED HYDROCEPHALUS 1583
ROLE OF ENDOSCOPIC BIOPSY IN THE MANAGEMENT OF INTRACRANIAL TUMORS 1583
ENDOSCOPIC REMOVAL OF COLLOID CYSTS OF THE THIRD VENTRICLE 1584
NEUROENDOSCOPIC MANAGEMENT OF PINEAL REGION TUMORS 1584
ENDOSCOPICALLY ASSISTED MICRONEUROSURGERY 1585
NEUROENDOSCOPY FOR INTRA-AXIAL TUMORS 1585
ENDONASAL TRANSSPHENOIDAL AND EXTENDED TRANSSPHENOIDAL APPROACHES 1585
ENDOSCOPIC ENDONASAL APPROACH: APPLICATIONS AND LIMITATIONS 1586
FUTURE DIRECTIONS 1588
CONCLUSION 1588
suggested readings 1588
Chapter 120: Intraoperative Magnetic Resonance Imaging 1589
DEVELOPMENT OF INTRAOPERATIVE MAGNETIC RESONANCE IMAGING 1589
INDICATIONS FOR INTRAOPERATIVE MAGNETIC RESONANCE IMAGING 1592
FEASIBILITY AND COST CONSIDERATIONS 1596
CONCLUSION 1596
suggested readings 1596
Chapter 121: Low-Grade Gliomas: 1598
EPIDEMIOLOGY 1598
CLINICAL PRESENTATION 1598
CONVENTIONAL NEUROIMAGING STUDIES 1598
EMERGING NEUROIMAGING TECHNOLOGIES 1599
PATIENT OUTCOME AND SURVIVAL 1601
PROGNOSTIC FACTORS 1601
GENETIC EXPRESSION PROFILE 1601
TREATMENT OPTIONS 1601
CONCLUSION 1605
suggested readings 1605
Chapter 122: Malignant Gliomas: 1607
EPIDEMIOLOGY 1607
CLINICAL MANIFESTATIONS 1608
HISTOPATHOLOGY 1609
NEUROIMAGING STUDIES 1614
MANAGEMENT 1615
PATIENT OUTCOME AND SURVIVAL 1619
FUTURE DIRECTIONS 1619
suggested readings 1620
Chapter 123: Unusual Gliomas 1621
SUBEPENDYMAL GIANT CELL ASTROCYTOMA 1621
ANGIOCENTRIC GLIOMA 1622
ASTROBLASTOMA 1623
PILOMYXOID ASTROCYTOMA 1624
PLEOMORPHIC XANTHOASTROCYTOMA 1624
GANGLIOGLIOMA 1626
PAPILLARY TUMOR OF THE PINEAL REGION 1628
DYSEMBRYOPLASTIC NEUROEPITHELIAL TUMOR 1628
CHORDOID GLIOMA OF THE THIRD VENTRICLE 1629
CONCLUSION 1630
suggested readings 1630
Chapter 124: Primitive Neuroectodermal Tumors 1631
HISTORY 1631
INCIDENCE 1631
PATHOLOGY 1631
CLINICAL EVALUATION 1633
TREATMENT 1634
COMPLICATIONS 1635
OUTCOMES AND ADJUVANT THERAPY 1635
suggested readings 1638
Chapter 125: Pineal Tumors 1639
Historical Perspective 1639
Anatomy 1639
Pathology 1639
Clinical Features 1640
Treatment 1642
Surgical Techniques 1642
Patient Positioning 1644
Operative Approaches 1645
Postoperative Care 1649
Complications 1649
Surgical Outcome 1649
Postoperative Work-Up 1650
Adjuvant Therapy 1650
Conclusion 1651
suggested readings 1651
Chapter 126: Medulloblastoma 1653
TERMINOLOGY AND CLASSIFICATION 1653
EPIDEMIOLOGY 1653
PATHOLOGY 1653
MOLECULAR BIOLOGY 1655
CLINICAL PRESENTATION 1656
DIAGNOSTIC IMAGING STUDIES 1656
STAGING 1657
TREATMENT 1658
RECURRENCE 1661
SURVEILLANCE 1661
TREATMENT SEQUELAE 1661
CONCLUSION 1662
Acknowledgment 1662
suggested readings 1662
Chapter 127: Intracranial Ependymomas in Adults 1663
Pathology 1663
Molecular Genetics 1663
Clinical Features 1664
Imaging 1664
Staging 1664
Treatment 1664
Prognosis 1667
suggested readings 1668
Chapter 128: Hemangioblastomas 1669
EPIDEMIOLOGY 1669
IMAGING FINDINGS 1669
CLINICAL FINDINGS 1669
PERITUMORAL CYST FORMATION 1669
VON HIPPEL-LINDAU DISEASE 1672
NATURAL HISTORY 1673
PATHOLOGIC FINDINGS 1673
PATHOGENESIS 1673
MANAGEMENT 1674
SURGICAL TECHNIQUE 1675
CONCLUSION 1679
suggested readings 1679
Chapter 129: Central Nervous System Lymphoma 1680
PRIMARY CENTRAL NERVOUS SYSTEM LYMPHOMA 1680
SECONDARY CENTRAL NERVOUS SYSTEM LYMPHOMA 1687
CENTRAL NERVOUS SYSTEM POSTTRANSPLANTATION LYMPHOPROLIFERATIVE DISORDER 1688
PRIMARY INTRAOCULAR LYMPHOMA 1688
NEUROLYMPHOMATOSIS 1688
CONCLUSION 1688
suggested readings 1688
Chapter 130: Metastatic Brain Tumors 1690
EPIDEMIOLOGY 1690
TREATMENT MODALITIES 1691
CONCLUSION 1704
Acknowledgment 1705
suggested readings 1705
Chapter 131: Meningiomas 1706
HISTORICAL BACKGROUND 1706
PATHOLOGY 1706
EPIDEMIOLOGY 1709
ETIOLOGY 1710
GENETIC ASPECTS 1711
MENINGIOMAS AND RECEPTORS 1712
RADIOLOGY 1713
SURGICAL THERAPY AND TUMOR RECURRENCE 1714
NONSURGICAL THERAPY 1714
MENINGIOMA TYPES AND THEIR SURGICAL MANAGEMENT 1715
suggested readings 1728
Chapter 132: Meningeal Sarcoma and Meningeal Hemangiopericytoma 1730
Meningeal Sarcoma 1730
Meningeal Hemangiopericytoma 1734
Conclusion 1738
suggested readings 1739
Chapter 133: Acoustic Neuroma 1740
History 1740
Natural History 1740
Histopathologic Characteristics 1741
Clinical Findings 1742
Preoperative Imaging Studies 1742
Preoperative Management 1743
Surgical Approaches 1744
Radiosurgery and Fractionated Stereotactic Radiotherapy 1749
Special Considerations—Facial Nerve Preservation 1751
Special Considerations— Hearing Preservation 1752
Management of Complications 1752
Conclusion 1754
suggested readings 1754
Chapter 134: Pituitary Tumors: 1756
PITUITARY SURGERY: HISTORICAL CONSIDERATIONS 1756
PITUITARY TUMORS: GENERAL CONSIDERATIONS 1757
NORMAL ADENOHYPOPHYSIAL MORPHOLOGY 1757
HISTOPATHOLOGY OF PITUITARY ADENOMAS 1758
CLASSIFICATION OF PITUITARY ADENOMAS 1759
CLINICAL MANIFESTATION OF PITUITARY TUMORS 1760
DIAGNOSTIC AND THERAPEUTIC PRINCIPLES 1761
SURGERY FOR PITUITARY ADENOMAS 1762
DIAGNOSTIC CONSIDERATIONS AND SURGICAL RESULTS FOR SPECIFIC PITUITARY ADENOMA TYPES 1774
suggested readings 1789
Chapter 135: Craniopharyngioma 1791
EMBRYOLOGY AND HISTOGENESIS 1791
EPIDEMIOLOGY 1791
SIGNS AND SYMPTOMS 1791
PATHOLOGY 1792
NATURAL HISTORY 1793
NEUROIMAGING 1793
CLASSIFICATION AND GRADING SCHEMES 1793
TREATMENT 1793
RECURRENCE AND PATTERNS OF FAILURE 1800
TREATMENT OF RECURRENCE 1801
OUTCOME 1801
CONCLUSION 1801
Acknowledgements 1802
suggested readings 1802
Chapter 136: Epidermoid, Dermoid, and Neurenteric Cysts 1803
EPIDERMOID CYSTS 1803
DERMOID CYSTS 1805
NEURENTERIC CYSTS 1805
CONCLUSION 1806
suggested readings 1808
Chapter 137: Neoplastic Meningitis 1809
INCIDENCE 1809
PATHOGENESIS 1809
CLINICAL FEATURES 1809
DIAGNOSIS 1809
PROGNOSIS 1811
TREATMENT 1811
CONCLUSION 1812
suggested readings 1813
Chapter 138: Ventricular Tumors 1814
PATHOLOGY 1814
CLINICAL FEATURES 1814
IMAGING STUDIES 1815
SURGICAL ANATOMY 1815
INDICATIONS FOR SURGERY 1817
PREPARATION 1817
INTRAOPERATIVE IMAGING AND MONITORING 1818
SURGICAL REMOVAL OF LATERAL VENTRICLE TUMORS 1818
SURGICAL REMOVAL OF THIRD VENTRICLE TUMORS 1827
Approaches to the Third Ventricle 1827
SURGICAL REMOVAL OF FOURTH VENTRICLE TUMORS 1838
NEUROENDOSCOPY FOR INTRAVENTRICULAR TUMORS 1845
OUTCOME AND COMPLICATIONS 1847
suggested readings 1847
Chapter 139: Overview of Skull Base Tumors 1849
CLASSIFICATION 1849
EPIDEMIOLOGY 1849
MENINGIOMAS 1849
PITUITARY ADENOMAS 1852
CRANIOPHARYNGIOMAS 1854
SCHWANNOMAS 1856
EPIDERMOID/DERMOID 1859
CHORDOMAS AND CHONDROSARCOMAS 1860
PARAGANGLIOMA (CHEMODECTOMAS OR GLOMUS TUMORS) 1860
SKULL BASE METASTASES 1861
CONCLUSION 1863
suggested readings 1865
Chapter 140: Chordomas and Chondrosarcomas 1867
HISTORICAL BACKGROUND 1867
NATURAL HISTORY 1867
RADIOGRAPHY 1867
PATHOLOGY 1868
CYTOGENETICS 1869
TREATMENT 1870
CONCLUSION 1873
suggested readings 1873
Chapter 141: Glomus Tumors 1874
HISTORICAL BACKGROUND 1874
EPIDEMIOLOGY 1876
CLINICAL SIGNS AND SYMPTOMS 1876
PATHOLOGY 1877
DIAGNOSIS 1878
TREATMENT OPTIONS 1879
suggested readings 1888
Chapter 142: Neoplasms of the Paranasal Sinuses 1890
PATHOGENESIS 1890
PATHOLOGIC FEATURES 1890
DIAGNOSTIC EVALUATION 1892
CLASSIFICATION 1894
PRINCIPLES OF TREATMENT 1894
OUTCOME 1902
CONCLUSION 1902
suggested readings 1903
Chapter 143: Esthesioneuroblastoma 1904
PATHOLOGY 1904
CLINICAL FINDINGS 1904
PATIENT EVALUATION 1904
TREATMENT 1904
SURGICAL TECHNIQUE 1907
COMPLICATIONS 1910
OUTCOMES 1911
CONCLUSION 1911
suggested readings 1911
Chapter 144: Trigeminal Schwannomas 1913
EPIDEMIOLOGY AND HISTORY 1913
PATHOLOGY AND PATHOGENESIS 1913
PATHOLOGIC ANATOMY AND CLASSIFICATION SCHEMES 1913
CLINICAL FINDINGS 1916
NEURORADIOLOGIC EVALUATION 1916
SURGICAL TREATMENT 1917
ROLE OF RADIOSURGERY AND RADIOTHERAPY 1919
OUTCOME 1919
CONCLUSION 1921
suggested readings 1921
Chapter 145: Juvenile Nasal Angiofibroma 1922
CLINICAL FINDINGS 1922
IMAGING AND HISTOPATHOLOGY 1922
STAGING 1923
MANAGEMENT 1923
CONCLUSION 1927
suggested readings 1927
Chapter 146: Osseous Tumors 1928
NON-NEOPLASTIC LESIONS 1928
BENIGN TUMORS 1929
MALIGNANT TUMORS 1931
DEVELOPMENTAL LESIONS 1933
Acknowledgment 1934
suggested readings 1934
Chapter 147: Tumors of the Orbit 1935
CLINICAL MANIFESTATIONS 1935
SURGICAL ANATOMY 1935
SURGICAL APPROACHES (LATERAL AND MEDIAL CORRIDORS) 1936
LATERAL CORRIDORS 1937
MEDIAL CORRIDORS 1940
COMPLICATIONS AND THEIR MANAGEMENT 1944
CHOICE OF APPROACH 1944
CONCLUSION 1945
suggested readings 1945
Chapter 148: Skull Tumors 1946
PRIMARY SKULL NEOPLASMS 1946
SECONDARY (METASTATIC) SKULL NEOPLASMS 1961
REACTIVE, PROLIFERATING, AND NON-NEOPLASTIC LESIONS 1967
suggested readings 1971
Chapter 149: Scalp Tumors 1972
SKIN TISSUE 1972
SOFT TISSUE 1977
VASCULAR TISSUE 1977
NERVOUS TISSUE 1978
SKIN APPENDAGES 1978
METASTATIC LESIONS 1978
SCALP RECONSTRUCTIVE PROCEDURES 1978
suggested readings 1979
Chapter 150: Pseudotumor Cerebri 1980
Terminology 1980
Epidemiology 1980
Symptoms and Signs 1980
Diagnosis 1981
Secondary Pseudotumor Cerebri 1983
Complications 1983
Pathophysiology 1983
Monitoring 1985
Treatment 1987
Special Circumstances 1991
Prognosis 1991
suggested readings 1992
Chapter 151: Sarcoidosis, Tuberculosis, and Xanthogranuloma 1993
Sarcoidosis 1993
Tuberculosis 1997
Xanthogranuloma 1999
suggested readings 2000
Chapter 152: Demyelinating Disease 2001
suggested readings 2003
SECTION VI: Pain 2005
Chapter 153: Pain: General Historical Considerations 2007
TRIGEMINAL NEURALGIA 2007
CORDOTOMY 2007
STEREOTAXY 2008
GATE THEORY OF PAIN 2009
INTRASPINAL OPIOIDS 2009
EVIDENCE-BASED MEDICINE 2009
CONCLUSION AND FUTURE 2009
suggested readings 2009
Chapter 154: Anatomy and Physiology of Pain 2011
PRIMARY AFFERENT NOCICEPTORS 2011
DORSAL HORN AND ASCENDING PATHWAYS 2011
SUPRASPINAL NOCICEPTIVE TARGETS 2012
CORTICAL PROCESSING 2014
SENSITIZATION OF ASCENDING PAIN TRANSMISSION PATHWAYS 2016
DESCENDING MODULATORY SYSTEMS 2016
CONCLUSION 2018
Acknowledgment 2018
suggested readings 2018
Chapter 155: Molecular Basis of Nociception 2020
Properties of Nociceptors That Innervate Different Peripheral Organs 2020
Nociceptive Transduction Mechanisms 2021
Neurogenic Inflammation 2024
Centripetal Transfer of Information 2024
Synaptic Transmission and Segmental Facilitatory Mechanisms 2025
Furure Considerations 2026
suggested readings 2027
Chapter 156: Approach to the Patient with Chronic Pain 2029
BEFORE ARRIVAL 2029
THE INITIAL VISIT 2029
HISTORY 2030
PHYSICAL AND NEUROLOGICAL EXAMINATION 2032
FORMULATING A TREATMENT PLAN 2033
suggested readings 2033
Chapter 157: Pharmacologic Treatment of Pain 2034
THE PHENOMENON OF PAIN 2034
PAIN PERCEPTION AND RELAY 2034
TREATMENT OF PAIN 2035
TOLERANCE, ADDICTION, AND WITHDRAWAL 2040
CONCLUSION 2041
suggested readings 2041
Chapter 158: Management of Pain by Anesthetic Techniques 2043
CONSIDERATIONS FOR DIAGNOSTIC AND THERAPEUTIC INJECTIONS 2043
LIMITATIONS OF NEURAL BLOCKADE AND THERAPEUTIC INJECTION 2043
IMAGING GUIDANCE 2044
EPIDURAL AND SELECTIVE NERVE ROOT INJECTIONS 2045
FACET JOINT AND MEDIAL BRANCH NERVE PROCEDURES 2047
RADIOFREQUENCY DENERVATION TREATMENT 2048
SYMPATHETIC NERVE BLOCKS 2049
SPHENOPALATINE GANGLION BLOCK 2050
STELLATE GANGLION BLOCK 2050
THORACIC SYMPATHETIC BLOCK 2050
CELIAC PLEXUS AND SPLANCHNIC NERVE BLOCKS 2050
LUMBAR SYMPATHETIC BLOCK 2051
CONCLUSION 2051
suggested readings 2051
Chapter 159: Evidence-Based Approach to the Treatment of Facial Pain 2052
IMPLEMENTATION OF EVIDENCE-BASED MEDICINE IN TRIGEMINAL NEURALGIA 2053
DIAGNOSIS OF TRIGEMINAL NEURALGIA 2053
TREATMENT OF TRIGEMINAL NEURALGIA 2054
PUTTING THE EVIDENCE INTO CLINICAL CONTEXT 2054
USE OF EVIDENCE-BASED MEDICINE FOR EVALUATION OF FUTURE MANAGEMENT OF TRIGEMINAL NEURALGIA 2055
suggested readings 2055
Chapter 160: Trigeminal Neuralgia: 2056
HISTORICAL PERSPECTIVE 2056
GENERAL PRINCIPLES IN THE MEDICAL MANAGEMENT OF FACIAL PAIN 2056
TRIGEMINAL NEURALGIA 2056
suggested readings 2060
Chapter 161: Percutaneous Procedures for Trigeminal Neuralgia 2061
HISTORICAL DEVELOPMENT OF PERCUTANEOUS PROCEDURES FOR TRIGEMINAL NEURALGIA 2061
TRIGEMINAL ANATOMY 2061
DIAGNOSIS 2062
DIAGNOSTIC TOOLS 2062
SURGICAL TREATMENT 2062
PERCUTANEOUS PREOPERATIVE CARE 2062
PERCUTANEOUS SURGICAL PROCEDURES 2063
POSTOPERATIVE MANAGEMENT 2065
RADIOSURGERY 2065
RESULTS AND COMPLICATIONS 2066
SPECIAL CONSIDERATIONS 2066
CONCLUSION 2066
suggested readings 2067
Chapter 162: Stereotactic Radiosurgery for Trigeminal Neuralgia 2068
HISTORICAL PERSPECTIVE OF GAMMA KNIFE IN TRIGEMINAL NEURALGIA 2068
RATIONALE FOR RADIOSURGERY IN TRIGEMINAL NEURALGIA AND FACTORS RELATED TO SUCCESSFUL TREATMENT 2068
RADIOSURGICAL TARGETING 2069
CLINICAL FOLLOW-UP 2070
PAIN CONTROL AFTER RADIOSURGERY FOR TRIGEMINAL NEURALGIA: A REVIEW OF THE LITERATURE 2070
RECURRENCE AND RETREATMENT 2071
COMPLICATIONS FROM RADIOSURGERY 2071
COMPARISON OF RADIOSURGERY AND OPEN SURGERY FOR TRIGEMINAL NEURALGIA 2071
CONCLUSION 2074
suggested readings 2074
Chapter 163: Microvascular Decompression for Trigeminal Neuralgia 2075
HISTORY 2075
PATHOPHYSIOLOGY 2075
ALTERNATIVE TREATMENTS 2075
PATIENT SELECTION AND CLASSIFICATION OF FACIAL PAIN 2076
PREOPERATIVE IMAGING 2076
OPERATIVE TECHNIQUE 2076
POSTOPERATIVE CARE 2078
COMPLICATIONS 2079
RESULTS 2079
OTHER NEUROVASCULAR FACIAL PAIN SYNDROMES 2080
CONCLUSION 2080
suggested readings 2080
Chapter 164: Neurosurgical Management of Intractable Pain 2082
PRELUDE TO SURGICAL TREATMENT 2082
PATIENT SELECTION FOR SURGICAL PAIN THERAPIES 2083
NEUROSURGICAL THERAPIES FOR INTRACTABLE PAIN 2083
CONCLUSION 2087
suggested readings 2088
Chapter 165: Evidence Base: 2089
BACKGROUND 2089
HISTORY 2089
METHODS 2090
RESULTS 2090
THE NEUROSTIMULATION LITERATURE 2096
DISCUSSION 2097
EXPECTATIONS AND REPORTING BIAS 2097
RECOMMENDATIONS AND CONCLUSION 2098
Investment and Financial Disclosure 2099
Acknowledgement 2099
suggested readings 2099
Chapter 166: Peripheral Nerve Stimulation for Neuropathic Pain 2101
INDICATIONS 2101
SURGICAL TECHNIQUE 2102
RESULTS AND FUTURE DIRECTIONS 2104
suggested readings 2104
Chapter 167: Spinal Cord Stimulation 2105
MECHANISM OF ACTION 2105
INDICATIONS AND OUTCOMES 2105
EARLY LEAD CONFIGURATIONS 2107
MODERN-DAY LEAD TYPES 2107
LAMINECTOMY COMPARED WITH PERCUTANEOUS PLACEMENT 2108
GENERATORS 2108
PATIENT PROGRAMMERS 2109
SURGICAL TECHNIQUE 2109
COMPLICATIONS 2110
CAUTIONS AND CONTRAINDICATIONS 2110
NEW DIRECTIONS 2110
suggested readings 2110
Chapter 168: Motor Cortex Stimulation 2111
SURGICAL TECHNIQUE 2111
STIMULATION PARAMETERS 2111
INDICATIONS AND RESULTS 2112
SAFETY 2113
MECHANISM OF ACTION 2113
CONCLUSION 2114
suggested readings 2114
Chapter 169: Evidence Base for Destructive Procedures 2115
METHODS 2115
RESULTS 2115
DISCUSSION 2118
CONCLUSION 2119
Acknowledgment 2120
selected readings 2120
Chapter 170: Diagnosis and Management of Painful Neuromas 2121
PATHOPHYSIOLOGY 2121
CLINICAL PRESENTATION 2121
DIAGNOSIS 2121
TREATMENT 2121
FUTURE DIRECTIONS 2124
suggested readings 2124
Chapter 171: Dorsal Root Entry Zone Lesions 2125
PAIN MECHANISM 2125
HISTORICAL PERSPECTIVES 2125
ANATOMIC AND PHYSIOLOGIC CONSIDERATIONS 2125
INDICATIONS 2126
OPERATIVE TECHNIQUE 2127
SPECIAL CONSIDERATIONS 2128
COMPLICATIONS 2129
CONCLUSION 2129
suggested readings 2129
Chapter 172: Percutaneous Cordotomy and Trigeminal Tractotomy-Nucleotomy 2131
HISTORY 2131
ANATOMY OF THE TARGETS AND THEIR ENVIRONS 2131
PATIENT SELECTION 2132
PERCUTANEOUS CORDOTOMY TECHNIQUE 2133
PERCUTANEOUS TRIGEMINAL TRACTOTOMY-NUCLEOTOMY TECHNIQUE 2135
RESULTS AND COMPLICATIONS 2136
CONCLUSION 2137
Acknowledgment 2137
suggested readings 2137
SECTION VII: Pediatrics 2139
Chapter 173: Neuroanesthesia in Children 2141
PREOPERATIVE EVALUATION AND PREPARATION 2141
INTRAOPERATIVE MANAGEMENT 2141
POSTOPERATIVE MANAGEMENT 2146
SPECIAL ISSUES 2146
CONCLUSION 2149
suggested readings 2149
Chapter 174: Neurocritical Care in Children 2150
NEUROLOGICAL ASSESSMENT IN THE PEDIATRIC INTENSIVE CARE UNIT 2150
THE CRITICALLY ILL CHILD 2150
AIRWAY MANAGEMENT AND RESPIRATORY FAILURE 2150
STROKE IN CHILDREN 2151
FLUIDS, ELECTROLYTES, AND NUTRITION 2152
INTRACRANIAL HYPERTENSION 2154
SEIZURES 2154
INFECTIONS 2155
PREVENTION OF SECONDARY INSULTS TO THE BRAIN 2155
DIAGNOSIS OF BRAIN DEATH IN CHILDREN 2160
CONCLUSION 2161
suggested readings 2161
Chapter 175: Normal and Abnormal Embryology of the Brain 2163
NORMAL EARLY HUMAN NEURAL DEVELOPMENT 2163
ABNORMAL EARLY NEURAL DEVELOPMENT 2170
CONCLUSION 2176
suggested readings 2176
Chapter 176: Encephalocele 2178
Classification 2178
Embryology 2178
Epidemiology and Further Theory Regarding Embryopathogenesis 2178
Clinical Findings, Diagnosis, Management, and Outcome 2179
Conclusion 2185
suggested readings 2185
Chapter 177: Dandy-Walker Syndrome 2186
History 2186
Embryology, Pathophysiology, and Etiology 2186
Terminology and Differential Diagnosis 2186
Clinical Features 2186
Treatment 2187
Prognosis 2190
Conclusion 2190
suggested readings 2190
Chapter 178: Arachnoid Cysts 2191
EPIDEMIOLOGY 2191
PATHOLOGY 2191
EMBRYOLOGY 2191
CLINICAL PRESENTATION 2192
IMAGING 2194
TREATMENT ALTERNATIVES 2195
CONCLUSION 2197
suggested readings 2197
Chapter 179: Chiari Malformations 2198
HISTORY 2198
TERMINOLOGY 2198
SIGNS AND SYMPTOMS 2199
DIAGNOSTIC STUDIES 2200
PATHOPHYSIOLOGY 2202
TREATMENT 2203
COMPLICATIONS 2206
RESULTS AND PROGNOSIS 2206
FOLLOW-UP 2207
CONCLUSION 2207
suggested readings 2207
Chapter 180: Craniopagus Twins 2208
HISTORICAL PERSPECTIVE 2208
CLASSIFICATION AND DEMOGRAPHICS 2208
SURGICAL SEPARATION 2208
NONOPERABLE CRANIOPAGUS 2213
Acknowledgment 2213
suggested readings 2215
Chapter 181: Genetics of Craniosynostosis 2216
SYNDROMIC CRANIOSYNOSTOSIS 2216
NONSYNDROMIC CRANIOSYNOSTOSIS 2218
VALUE OF MOLECULAR GENETICS TO THE CRANIOFACIAL SURGEON 2219
CONCLUSION 2219
suggested readings 2219
Chapter 182: Craniosynostosis 2220
NONSYNDROMIC AND SYNDROMIC CRANIOSYNOSTOSIS 2220
DIAGNOSIS 2221
OPERATIVE TIMING AND APPROACHES 2222
INTRACRANIAL PRESSURE, COGNITION, AND BEHAVIOR 2223
OPERATIVE TREATMENT 2224
OPERATIVE COMPLICATIONS 2233
PHILOSOPHY OF TREATMENT 2233
suggested readings 2234
Chapter 183: Syndromic Craniosynostosis 2235
Description and Classification of the Faciocraniosynsotoses 2235
Etiology 2235
Functional Aspects 2239
Surgical Treatment 2240
suggested readings 2247
Chapter 184: Endoscopic Treatment of Craniosynostosis 2249
INSTRUMENTATION 2249
ANESTHESIA 2250
SAGITTAL 2251
CORONAL 2251
METOPIC 2252
LAMBDOID 2253
CONCLUSION 2255
suggested readings 2255
Chapter 185: Plagiocephaly 2256
HISTORY 2256
SCOPE AND IMPACT 2257
INCIDENCE 2257
PATHOGENESIS AND PATHOLOGY 2257
EVALUATION OF THE INFANT WITH PLAGIOCEPHALY 2258
TREATMENT 2260
CONCLUSION 2261
suggested readings 2261
Chapter 186: Hydrocephalus in Children: 2262
PRESENTATION 2262
DISEASE-SPECIFIC CONSIDERATIONS 2262
APPROACH TO THE PATIENT 2265
suggested readings 2266
Chapter 187: Infantile Posthemorrhagic Hydrocephalus 2267
INTRAVENTRICULAR HEMORRHAGE IN PRETERM INFANTS 2267
INTRAVENTRICULAR HEMORRHAGE IN TERM INFANTS 2272
suggested readings 2272
Chapter 188: Cerebrospinal Fluid Physiology 2273
CEREBROSPINAL FLUID PHYSIOLOGY OF THE DEVELOPING FETUS 2273
BLOOD-BRAIN BARRIER 2276
FORMATION OF CEREBROSPINAL FLUID 2276
ABSORPTION OF CEREBROSPINAL FLUID 2277
CIRCULATION OF CEREBROSPINAL FLUID 2278
suggested readings 2281
Chapter 189: Experimental Hydrocephalus 2282
EXPERIMENTAL MODELS 2282
PATHOPHYSIOLOGIC MECHANISMS AND TREATMENT POSSIBILITIES 2284
CONCLUSION 2286
suggested readings 2288
Chapter 190: Ventricular Shunting Procedures 2289
COMPONENTS OF A SHUNT SYSTEM 2289
COMMERCIALLY AVAILABLE SHUNT SYSTEMS 2292
SHUNT INSERTION 2292
CONCLUSION 2299
suggested readings 2300
Chapter 191: Neuroendoscopy 2301
HISTORY 2301
INSTRUMENTATION 2301
STEREOTACTIC ENDOSCOPY 2302
ENDOSCOPIC ANATOMIC CONSIDERATIONS 2302
ENDOSCOPIC PROCEDURES 2303
VENTRICULAR TUMORS AND CYSTS 2306
PINEAL TUMORS AND CYSTS 2306
COLLOID CYSTS 2306
CONCLUSION 2308
suggested readings 2308
Chapter 192: Cerebrospinal Fluid Devices 2309
History of Cerebrospinal Fluid Shunt Devices 2309
Cerebrospinal Fluid Shunt Hydrodynamics 2309
Siphoning 2310
Proximal and Distal Shunt Catheters 2311
Shunt Valves 2311
Ventricular Access Devices 2313
Valve Design Trials 2314
In Vivo Shunt Assessment 2314
Future Developments 2314
suggested readings 2314
Chapter 193: Shunt Infections and Their Treatment 2315
INFECTION RATES 2315
CLINICAL EVALUATION 2316
TREATMENT 2317
OUTCOME 2318
PREVENTION 2318
CONCLUSION 2318
suggested readings 2318
Chapter 194: General Approaches and Considerations for Pediatric Brain Tumors 2320
EPIDEMIOLOGY 2320
CLASSIFICATION 2320
ONCOGENIC FACTORS 2321
CLINICAL FEATURES 2321
DIAGNOSTIC EVALUATION 2322
TREATMENT 2324
LONG-TERM EFFECTS 2326
suggested readings 2326
Chapter 195: Optic Pathway Hypothalamic Gliomas 2327
CLINICAL FINDINGS 2327
NEUROIMAGING 2327
TREATMENT 2328
OUTCOME 2331
CONCLUSION 2332
suggested readings 2333
Chapter 196: Thalamic Tumors 2334
INCIDENCE 2334
GROWTH PATTERN 2334
IMAGING 2334
HISTOPATHOLOGY 2335
CLINICAL FINDINGS 2335
SURGICAL APPROACH 2336
COMPLICATIONS 2337
ADJUNCTIVE TREATMENTS 2338
PROGNOSTIC FACTORS AND OUTCOMES 2338
CONCLUSION 2338
suggested readings 2341
Chapter 197: Choroid Plexus Tumors 2342
CLINICAL BACKGROUND 2342
PRESENTATION 2342
DIAGNOSIS 2343
PATHOLOGY 2345
SURGICAL TREATMENT AND COMPLICATIONS 2347
OUTCOMES 2348
CONCLUSION 2348
suggested readings 2348
Chapter 198: Pediatric Craniopharyngioma 2349
HISTORY 2349
HISTOLOGY 2349
EPIDEMIOLOGY 2349
CLINICAL PRESENTATION 2349
IMAGING 2350
DIFFERENTIAL DIAGNOSIS 2352
ENDOCRINE EVALUATION 2353
MANAGEMENT CONTROVERSY 2353
RADICAL RESECTION VERSUS LIMITED SURGERY PLUS RADIOTHERAPY 2353
CONCLUSION 2357
suggested readings 2358
Chapter 199: Supratentorial Hemispheric Tumors 2359
EPIDEMIOLOGY 2359
CLINICAL FINDINGS 2359
GLIAL TUMORS 2359
MIXED GLIAL/NEURONAL TUMORS 2362
PRIMITIVE NEUROECTODERMAL TUMORS 2363
MOLECULAR BIOLOGY 2364
EXPERIMENTAL THERAPY 2364
CONCLUSION 2364
Acknowledgment 2364
suggested readings 2364
Chapter 200: Ependymoma 2366
CLINICAL OVERVIEW 2366
PROGNOSTIC FACTORS 2366
PATHOLOGY 2367
HEREDITARY TUMOR SYNDROMES 2367
CANCER GENETICS 2368
STEM CELL BIOLOGY 2369
EPENDYMOMA VARIANTS 2369
NEUROIMAGING 2369
INITIAL SURGERY 2369
SURGERY FOR RESIDUAL OR RECURRENT TUMOR 2371
SURGICAL TECHNIQUE 2371
TREATMENT OF HYDROCEPHALUS 2372
RADIATION THERAPY 2373
CHEMOTHERAPY 2373
CONCLUSION 2374
suggested readings 2374
Chapter 201: Medulloblastoma in Children 2375
HISTORICAL PERSPECTIVE AND EPIDEMIOLOGY 2375
GENETICS 2375
PATHOLOGY 2376
CLINICAL FINDINGS 2377
DIAGNOSTIC IMAGING 2377
STAGING AND PROGNOSTIC FACTORS 2377
TREATMENT 2379
SURVEILLANCE IMAGING AND DISEASE RECURRENCE 2383
FUTURE DIRECTIONS 2383
suggested readings 2384
Chapter 202: Cerebellar Astrocytomas 2385
HISTORICAL PERSPECTIVE 2385
ETIOLOGY 2385
PATIENT CHARACTERISTICS 2385
IMAGING FEATURES 2386
SURGICAL AND PERIOPERATIVE MANAGEMENT 2388
COMPLICATIONS 2390
PATHOLOGY 2391
RADIATION THERAPY 2392
OUTCOME 2392
SURVEILLANCE 2392
TREATMENT OF RECURRENCE 2392
QUALITY OF LIFE 2392
suggested readings 2393
Chapter 203: Brainstem Glioma 2394
HISTORY AND DEFINITION 2394
EPIDEMIOLOGY 2394
SIGNS AND SYMPTOMS 2394
DIAGNOSIS 2395
PATHOBIOLOGY 2395
TREATMENT 2398
PROGNOSIS AND OUTCOMES 2400
CONCLUSION 2400
suggested readings 2400
Chapter 204: Intracranial Germ Cell Tumors 2401
CLASSIFICATION AND EPIDEMIOLOGY 2401
CLINICAL FINDINGS 2401
DIAGNOSTIC EVALUATION 2401
SURGICAL MANAGEMENT 2402
ADJUVANT THERAPY AND PROGNOSTIC CONSIDERATIONS 2404
CONCLUSION 2406
suggested readings 2407
Chapter 205: Familial Tumors (Neurocutaneous Syndromes) 2408
NEUROFIBROMATOSIS TYPE 1 2408
NEUROFIBROMATOSIS TYPE 2 2411
TUBEROUS SCLEROSIS 2412
VON HIPPEL-LINDAU DISEASE 2413
ATAXIA-TELANGIECTASIA 2414
STURGE-WEBER SYNDROME 2414
CONCLUSION 2415
Acknowledgment 2415
suggested readings 2415
Chapter 206: Skull Tumors and Fibrous Dysplasia 2416
INCLUSION CYSTS 2416
LANGERHANS CELL HISTIOCYTOSIS 2416
HEMANGIOMA 2417
OCCULT MENINGOCELES 2418
CEPHALOHEMATOMAS 2418
ANEURYSMAL BONE CYSTS 2419
CRANIAL FASCIITIS 2420
SKULL METASTASIS 2421
MELANOTIC NEUROECTODERMAL TUMOR (MELANOTIC PROGONOMA) 2421
OSTEOMAS 2421
SINUS PERICRANII 2421
FIBROUS DYSPLASIA 2422
suggested readings 2423
Chapter 207: Moyamoya Disease 2424
EPIDEMIOLOGY 2424
ASSOCIATED CONDITIONS 2424
PATHOPHYSIOLOGY 2424
CLINICAL FINDINGS 2425
NATURAL HISTORY AND PROGNOSIS 2426
DIAGNOSIS 2426
TREATMENT 2427
CONCLUSION 2429
suggested reading 2429
Chapter 208: Vein of Galen Aneurysmal Malformation 2430
Classification 2430
Embryology 2436
Angioarchitecture of Vein of Galen Aneurysmal Malformations 2436
Clinical Manifestations of Vein of Galen Aneurysmal Malformations 2440
Treatment 2442
Treatment Results 2443
Follow-Up 2444
Conclusion 2444
suggested readings 2444
Chapter 209: Management of Severe Head Injury in Children 2446
BACKGROUND 2446
CLASSIFICATION OF HEAD INJURIES 2446
MANAGEMENT OF TRAUMATIC BRAIN INJURY 2447
CONCLUSION 2453
suggested readings 2455
Chapter 210: Child Abuse 2456
EVALUATION OF CHILD ABUSE SYNDROMES 2456
MANAGEMENT OF HEAD INJURIES FROM CHILD ABUSE 2460
SPINAL INJURY CAUSED BY CHILD ABUSE 2462
OUTCOME OF HEAD INJURIES FROM CHILD ABUSE 2462
PREVENTION OF CHILD ABUSE 2463
suggested readings 2463
Chapter 211: Growing Skull Fracture 2464
History and Pathogenesis 2464
Epidemiology 2465
Evaluation 2465
Treatment 2465
Conclusion 2466
suggested readings 2466
Chapter 212: Birth Head Trauma 2467
INCIDENCE AND RISK FACTORS 2467
SCALP INJURY 2467
SKULL FRACTURES 2467
INTRACRANIAL HEMORRHAGE 2468
suggested readings 2471
Chapter 213: Birth Brachial Plexus Injury 2472
HISTORY 2472
PATHOPHYSIOLOGY 2472
NATURAL HISTORY 2472
CLINICAL FINDINGS 2473
PATIENT EVALUATION 2474
SURGICAL TREATMENT 2475
COMPLICATIONS 2476
POSTOPERATIVE CARE 2476
SURGICAL OUTCOME 2476
SECONDARY RECONSTRUCTION 2477
CONCLUSION 2477
suggested readings 2478
Chapter 214: Myelomeningocele and Myelocystocele 2479
TERMINOLOGY 2479
MYELOMENINGOCELE 2479
MYELOCYSTOCELE 2488
suggested readings 2490
Chapter 215: Lipomyelomeningocele 2491
DEFINITION AND CLASSIFICATION 2491
EMBRYOLOGY 2491
CLINICAL FINDINGS 2492
EVALUATION 2493
SURGICAL TREATMENT 2494
COMPLICATIONS 2496
OUTCOMES 2497
CONCLUSION 2497
suggested readings 2497
Chapter 216: Split Spinal Cord 2499
EPIDEMIOLOGY OF SPLIT CORD MALFORMATIONS 2499
EMBRYOGENESIS 2499
SIGNS AND SYMPTOMS 2500
IMAGING 2501
SURGICAL MANAGEMENT 2503
OUTCOMES 2505
CONCLUSION 2506
suggested readings 2506
Chapter 217: Tethered Spinal Cord: 2507
INCIDENCE AND EPIDEMIOLOGY 2507
EMBRYOLOGIC OVERVIEW 2507
FATTY FILUM TERMINALE 2507
MENINGOCELE MANQUÉ 2509
DERMAL SINUS TRACTS 2510
CONCLUSION 2511
suggested readings 2512
Chapter 218: Developmental Abnormalities of the Craniocervical Junction 2513
ANATOMY OF THE CRANIOVERTEBRAL JUNCTION 2513
EMBRYOLOGY AND DEVELOPMENT OF CRANIOVERTEBRAL JUNCTION DISORDERS 2513
IMPLICATIONS OF CRANIOVERTEBRAL ABNORMALITIES 2514
BIOMECHANICS 2514
BIOMECHANICAL COMPARISON OF CERVICAL ORTHOSES 2515
CLASSIFICATION OF CRANIOVERTEBRAL JUNCTION ABNORMALITIES 2515
EPIDEMIOLOGY 2515
CLINICAL FINDINGS 2516
NEURODIAGNOSTIC IMAGING 2516
TREATMENT 2517
DEVELOPMENTAL ABNORMALITIES AFFECTING THE CRANIOVERTEBRAL REGION 2517
ANOMALIES OF THE ODONTOID PROCESS 2521
suggested readings 2524
Chapter 219: Achondroplasia and Other Dwarfisms 2525
GENETICS AND EPIDEMIOLOGY 2525
MEDICAL COMPLICATIONS 2526
EVALUATION AND DIAGNOSIS 2526
Operative Management 2529
OUTCOME 2531
CONCLUSION 2533
Acknowledgment 2533
suggested readings 2533
Chapter 220: Cervical Spine Disorders in Children 2535
SPECIFIC CONDITIONS 2535
MANAGEMENT OF SPECIFIC ABNORMALITIES BY ANATOMIC LEVEL 2539
suggested readings 2541
Chapter 221: Intramedullary Spinal Cord Tumors in Children 2542
EPIDEMIOLOGY 2542
CLINICAL FINDINGS 2542
DIAGNOSTIC EVALUATION 2543
PATHOLOGY 2546
TREATMENT 2547
CONCLUSION 2550
suggested readings 2550
Chapter 222: Spine Tumors in Children 2551
BENIGN TUMORS 2551
MALIGNANT TUMORS 2557
CONCLUSION 2558
suggested readings 2558
Chapter 223: Thoracolumbar Spinal Disorders in Pediatric Patients* 2559
Clinical Evaluation of Pediatric Spine Patients 2559
Imaging Evaluation of Pediatric Spine Patients 2559
Congenital Disorders 2561
Neuromuscular Disorders 2566
Idiopathic Scoliosis 2569
Conclusion 2570
suggested readings 2571
Chapter 224: Vertebral Column and Spinal Cord Injuries in Children 2573
CLASSIFICATION OF INJURY TYPE 2573
BIOMECHANICAL CONSIDERATIONS 2573
CLINICAL CHARACTERISTICS OF PEDIATRIC SPINAL INJURIES 2574
TREATMENT 2575
OUTCOME 2576
SPECIAL INJURY TYPES 2576
SPINAL STABILIZATION IN CHILDREN: PROBLEMS AND PITFALLS 2604
suggested readings 2612
Chapter 225: Clinical Features and Management of Cerebral Palsy 2613
DIAGNOSIS AND CLASSIFICATION 2613
ASSOCIATED IMPAIRMENTS 2613
IMPROVING MOBILITY AND MOTOR FUNCTION (“I WANT TO WALK”): HOW DO WE HELP THEM? 2614
DYSTONIA AND MIXED MOVEMENT DISORDERS IN CEREBRAL PALSY 2617
CONCLUSION 2618
suggested readings 2618
Chapter 226: Intrathecal Baclofen Therapy for Cerebral Palsy 2620
PATIENT SELECTION 2620
SCREENING 2620
PUMP AND CATHETER IMPLANTATION 2621
DOSING OF INTRATHECAL BACLOFEN 2621
OUTCOMES OF INTRATHECAL BACLOFEN IN PATIENTS WITH SPASTIC CEREBRAL PALSY 2622
INTRATHECAL BACLOFEN FOR DYSTONIC CEREBRAL PALSY 2622
INTRATHECAL BACLOFEN FOR CHOREOATHETOSIS IN PATIENTS WITH CEREBRAL PALSY 2622
COMPLICATIONS OF INTRATHECAL BACLOFEN FOR CEREBRAL PALSY 2623
CONCLUSION 2624
suggested readings 2624
Chapter 227: Selective Dorsal Rhizotomy for Spastic Cerebral Palsy 2625
PATHOGENESIS OF SPASTIC CEREBRAL PALSY 2625
DELETERIOUS EFFECTS OF CEREBRAL PALSY SPASTICITY 2625
TREATMENT OF SPASTIC CEREBRAL PALSY 2626
POSTOPERATIVE COURSE AND COMPLICATIONS 2631
OUTCOME 2632
CONCLUSION 2634
suggested readings 2634
Chapter 228: Dystonia in Children 2635
DEFINITION AND PATHOPHYSIOLOGY 2635
CLASSIFICATION, GRADING, AND CAUSES 2635
MEDICAL TREATMENT OF PEDIATRIC DYSTONIA 2636
NEUROSURGICAL TREATMENT AND OUTCOMES 2636
suggested readings 2638
Index 2639
e9781416053163v3 2731
Front cover 2731
Front Matter 2733
Youmans Neurological Surgery 2735
Copyright page 2736
Dedication 2737
EDITOR-IN-CHIEF 2738
Section Editors 2739
Video Editors 2743
Table of contents 2745
Contributors 2763
Preface 2823
SECTION VIII: Peripheral Nerve 2825
Chapter 229: General Principles in Evaluating and Treating Peripheral Nerve Pathology, Injuries, and Entrapments and Their Historical Context 2827
ENTRAPMENT SYNDROMES 2828
MINIMAL-ACCESS SURGERY FOR MAJOR PROXIMAL NERVE ENTRAPMENTS 2829
IMPACT OF NERVE IMAGING AND OPEN MAGNETIC RESONANCE–GUIDED INJECTIONS 2829
ELECTRONEURAL PROSTHESES 2829
CONCLUSION 2832
suggested readings 2832
Chapter 230: Pathophysiology of Surgical Nerve Disorders 2834
CAUSES OF SURGICAL NERVE INJURIES 2834
NEUROBIOLOGY OF PERIPHERAL NERVE INJURY, REGENERATION, AND FUNCTIONAL RECOVERY 2841
CONCLUSION 2843
suggested readings 2844
Chapter 231: Peripheral Nerve Examination, Evaluation, and Biopsy 2846
HISTORY 2846
PHYSICAL EXAMINATION 2847
CONFIRMATION OF THE DIAGNOSIS 2851
BIOPSY 2851
CONCLUSION 2852
suggested readings 2852
Chapter 232: Electrodiagnostic Evaluation of Peripheral Nerves: 2854
FUNDAMENTALS OF ELECTRODIAGNOSTIC TESTING 2854
COMMON CLINICAL DISORDERS 2859
ASSESSMENT OF TRAUMATIC PERIPHERAL NERVE INJURY 2861
PROGNOSTICATION OF AWAKENING FROM COMA 2862
CONCLUSION 2862
suggested readings 2863
Chapter 233: Peripheral Neuropathies 2864
ANATOMY AND PHYSIOLOGY OF PERIPHERAL NERVES 2864
CLINICAL SIGNS AND SYMPTOMS OF PERIPHERAL NEUROPATHY 2865
ELECTROPHYSIOLOGY OF PERIPHERAL NEUROPATHIES 2866
COMMON NEUROPATHIES 2868
suggested readings 2875
Chapter 234: Operative Neurophysiology of Peripheral Nerves 2876
ELECTRICAL CHARACTERISTICS OF NERVES 2876
RECORDING IN THE OPERATING ROOM 2878
suggested readings 2878
Chapter 235: Imaging for Peripheral Nerve Disorders 2879
TECHNICAL ASPECTS 2879
CLASSES OF IMAGE FINDINGS 2883
IMAGING IN THE SETTING OF NERVE ENTRAPMENT AND PAIN 2884
NERVE TRAUMA 2888
NERVE TUMORS 2888
MAGNETIC RESONANCE FINDINGS IN SYSTEMIC NEUROPATHIES 2889
DIAGNOSIS OF PATHOLOGIES AFFECTING MUSCLE 2889
CONCLUSION 2891
suggested readings 2891
Chapter 236: Distal Entrapment Syndromes: 2893
MEDIAN NERVE 2893
ULNAR NERVE 2897
COMMON PERONEAL NERVE 2901
POSTERIOR TIBIAL NERVE 2903
DOUBLE CRUSH SYNDROME 2904
Acknowledgment 2905
suggested readings 2905
Chapter 237: Thoracic Outlet Syndrome 2906
HISTORY OF THORACIC OUTLET SYNDROME 2906
ANATOMY 2906
CLINICAL FINDINGS 2906
DIAGNOSTIC EVALUATION 2907
CONSERVATIVE TREATMENT 2909
SURGICAL APPROACHES 2909
CLINICAL OUTCOMES AFTER SURGERY 2912
CONCLUSION 2912
Acknowledgment 2912
suggested readings 2912
Chapter 238: Piriformis Syndrome, Obturator Internus Syndrome, Pudendal Nerve Entrapment, and Other Pelvic Entrapments 2913
DIAGNOSIS AND MANAGEMENT OF PELVIC SCIATIC SYNDROMES 2914
DIAGNOSIS AND MANAGEMENT OF PUDENDAL SYNDROMES 2917
ANTERIOR PELVIS: ILIOINGUINAL, FEMORAL, OBTURATOR, AND LATERAL FEMORAL CUTANEOUS NERVES 2920
suggested readings 2920
Chapter 239: Techniques and Options in Nerve Reconstruction and Repair 2922
ANATOMIC PRINCIPLES 2922
PHYSIOLOGIC PRINCIPLES AND PATIENT SELECTION FOR SURGERY 2922
OPERATIVE PRINCIPLES AND FUNDAMENTAL TECHNIQUES 2923
NERVE REPAIR TECHNIQUES 2924
NERVE REPAIR IN THE FUTURE 2929
CONCLUSION 2929
suggested readings 2930
Chapter 240: Management of Acute Peripheral Nerve Injuries 2931
PATHOPHYSIOLOGIC ASPECTS OF NERVE TRAUMA 2931
APPEARANCE AND FORMS OF TRAUMATIC NERVE INJURY 2934
CLINICAL ASSESSMENT 2937
APPROACHING NERVE INJURY: A TREATMENT PLAN OUTLINE 2938
EXPLORING TRAUMATIZED NERVE 2942
NERVE REPAIR TECHNIQUES 2943
INTRAOPERATIVE DECISION MAKING: IS GRAFTING NECESSARY? 2944
CONCLUSION 2949
suggested readings 2949
Chapter 241: Early Management of Brachial Plexus Injuries 2950
HISTORICAL 2950
ANATOMY 2952
PATHOPHYSIOLOGY AND CLASSIFICATION 2952
CLINICAL 2953
THERAPY/MANAGEMENT 2954
suggested readings 2962
Chapter 242: Secondary Procedures for Brachial Plexus Injuries 2963
TENDON TRANSFER 2963
FUNCTIONING FREE MUSCLE TRANSFER 2966
ARTHRODESIS 2968
TENODESIS 2968
CORRECTIVE OSTEOTOMY 2968
AMPUTATION/PROSTHESES 2968
REHABILITATION 2969
PAIN MANAGEMENT 2969
CONCLUSION 2969
suggested readings 2969
Chapter 243: Nerve Injuries of the Lower Extremity 2970
EPIDEMIOLOGY 2970
LUMBOSACRAL PLEXUS INJURIES 2970
CONCLUSION 2982
suggested readings 2983
Chapter 244: Benign Tumors of the Peripheral Nerve 2984
HISTORY 2984
INTRODUCTION 2984
BENIGN TUMORS OF NEURAL SHEATH ORIGIN 2985
BENIGN TUMORS OF NON–NEURAL SHEATH ORIGIN 2990
TUMORS OF VASCULAR ORIGIN 2994
LOCALIZED HYPERTROPHIC NEUROPATHY (ONION WHORL DISEASE) 2995
RADIATION-INDUCED BRACHIAL PLEXUS LESIONS (ACTINIC PLEXITIS) 2996
suggested readings 2996
Chapter 245: Surgery for Malignant Peripheral Nerve Sheath Tumors 2998
EPIDEMIOLOGY AND RISK FACTORS 2998
DIAGNOSIS 2998
IMAGING 2999
TREATMENT 3000
CLASSIFICATION AND PATHOLOGIC DIAGNOSIS AND GRADING 3000
PATHOLOGY 3001
RADIOTHERAPY 3001
CHEMOTHERAPY 3001
PROGNOSIS 3002
suggested readings 3002
Chapter 246: Pain, Complications, and Iatrogenic Injury in Nerve Surgery 3003
PAIN AND PERIPHERAL NERVE INJURY 3003
COMPLICATIONS AND THEIR AVOIDANCE IN PERIPHERAL NERVE SURGERY 3005
IATROGENIC PERIPHERAL NERVE INJURIES 3006
CONCLUSION 3009
suggested readings 3009
SECTION IX: Radiation 3011
Chapter 247: General and Historical Considerations of Radiotherapy and Radiosurgery 3013
THE BEGINNING 3013
THE SEARCH FOR ENERGY AND PENETRATION 3015
THE ESTABLISHMENT OF CONSISTENCY AND REPRODUCIBILITY 3015
EMERGENCE OF RADIOBIOLOGY AND LIMITATION OF RADIATION INJURY 3016
IMAGING AND TARGETING 3016
COMPUTATION ADVANCES 3017
ROBOTIC POSITIONING AND AUTOMATED COLLIMATION 3018
BRACHYTHERAPY 3019
STEREOTACTIC RADIOSURGERY 3019
INTENSITY-MODULATED RADIOTHERAPY 3020
PARTICULATE AND OTHER NOVEL RADIATION 3020
CONCLUSION 3021
suggested readings 3021
Chapter 248: Principles of Radiation Therapy 3022
BASIC PRINCIPLES OF RADIATION THERAPY 3022
RADIATION DELIVERY SOURCES 3025
BASIC PARADIGMS OF RADIATION TREATMENT DELIVERY 3026
CONCLUSION 3028
suggested readings 3028
Chapter 249: The Radiobiology and Physics of Radiosurgery 3029
TYPES OF IONIZING RADIATION 3029
RADIOCHEMISTRY 3030
RADIOBIOLOGY 3030
MODALITIES OF RADIATION THERAPY 3031
ADVERSE EFFECTS OF RADIATION 3034
CONCLUSION 3035
suggested readings 3036
Chapter 250: Fractionated Radiation Therapy for Malignant Brain Tumors 3037
CLINICAL APPLICATIONS 3037
BRAIN METASTASES 3037
PRIMARY CENTRAL NERVOUS NEOPLASMS 3041
MALIGNANT GLIOMA 3041
PRIMARY CENTRAL NERVOUS SYSTEM LYMPHOMA 3044
MALIGNANT MENINGEAL TUMORS 3046
COMPLICATIONS 3046
CONCLUSION 3047
suggested readings 3047
Chapter 251: Fractionated Radiation Therapy for Benign Brain Tumors 3048
Meningioma 3048
Pituitary Adenoma 3052
Intracranial Schwannomas 3059
Craniopharyngioma 3061
Chordoma 3063
Chondrosarcoma 3064
suggested readings 3066
Chapter 252: Fractionated Radiotherapy for Spine Tumors 3067
Radiation Tolerance of the Spinal Cord 3067
Intramedullary Tumors 3068
Extramedullary Tumors 3069
Extradural Tumors 3070
Conclusion 3074
suggested readings 3074
Chapter 253: Interstitial and Intracavitary Irradiation of Brain Tumors 3075
Radiobiology 3075
Patient Selection 3076
Implantation Technique 3077
Brachytherapy for Primary Glioblastoma 3078
Brachytherapy for Recurrent Glioblastoma 3079
Brachytherapy for Low-Grade Astrocytoma 3079
Brachytherapy for Craniopharyngiomas 3079
Brachytherapy for Metastases 3080
Brachytherapy for Meningiomas 3080
Brachytherapy for Pediatric Brain Tumors 3080
Conclusion 3081
suggested readings 3081
Chapter 254: Proton Radiosurgery 3082
Historical Perspective on Radiosurgery 3082
Dose Principles: Photons and Protons 3082
The Original Approach: Proton Cross-Fire 3083
The Second Approach: Proton Bragg Peak and Minimizing the Uncertainty 3083
Technologic Evolution: Stereotactic Alignment for Radiosurgery 3084
Conclusion 3086
suggested readings 3087
Chapter 255: Linear Accelerator Radiosurgery: 3088
Precision and History of Linear Accelerators 3088
Dosimetry 3088
Functional Lesion Considerations 3088
Advanced Methods of Conformality 3094
Frameless Radiosurgery and the Spine 3095
Conclusion 3097
suggested readings 3097
Chapter 256: Gamma Knife Radiosurgery 3099
Evolution of the Gamma Knife 3099
The Radiosurgical Procedure 3102
Conclusion 3106
suggested readings 3106
Chapter 257: Image-Guided Robotic Radiosurgery: 3107
Clinical Applications of Robotic Image-Guided Radiosurgery 3107
Conclusion 3109
suggested readings 3109
Chapter 258: Radiosurgery of Malignant Tumors 3110
Metastatic Brain Tumors 3110
Anaplastic Astrocytoma and Glioblastoma 3113
Ependymoma 3114
Brainstem Gliomas 3115
Medulloblastoma 3116
Conclusion 3116
suggested readings 3117
Chapter 259: Radiosurgery of Benign Intracranial Tumors 3118
History 3118
Definition 3118
Radiobiology 3118
Topologic Differential Effect 3118
Long-Term Complications 3119
Vestibular Schwannomas 3119
Meningiomas 3123
Pituitary Tumors 3126
Other Benign Tumors 3129
Future Indications 3130
Conclusion 3130
suggested readings 3130
Chapter 260: Radiosurgery for Intracranial Vascular Malformations 3131
Arteriovenous Malformations 3131
Dural Arteriovenous Fistulas 3135
Cavernous Malformations 3138
suggested readings 3139
Chapter 261: Radiosurgery for Functional Disorders 3140
The Early Years of Functional Radiosurgery 3140
Dose Selection for Parenchymal Functional Radiosurgery 3140
Imaging in Functional Surgery 3141
Trigeminal Neuralgia 3141
Radiosurgical Thalamotomy 3143
Radiosurgical Pallidotomy 3144
Radiosurgery for Pain 3144
Radiosurgery for Psychiatric Disorders 3144
Radiosurgery for Epilepsy 3145
Other Indications 3145
suggested readings 3145
Chapter 262: Stereotactic Radiosurgery for the Treatment of Spinal Metastases 3147
Conventional External Beam Radiation Therapy 3147
Stereotactic Radiosurgery 3148
Conclusion 3151
suggested readings 3151
Chapter 263: Radiosurgery for Benign Spine Tumors and Vascular Malformations 3152
Special Considerations for Benign Tumors 3152
Technical and Dose Considerations 3153
Clinical Results 3153
Future Role/ Expanded Indications 3157
suggested readings 3157
SECTION X: Spine 3159
Section 10 Part 1 3161
Chapter 264: Overview and Historical Considerations 3161
Basic Science 3162
Approach to the Patient 3163
Infections 3163
Degenerative Disease 3163
Conditions Affecting the Craniocervical Junction 3163
Techniques and Instrumentation 3164
Tumors of the Spine 3164
Trauma 3164
Challenges 3164
Section 10 Part 2 3166
Chapter 265: Concepts and Mechanisms of Spinal Biomechanics 3166
Basic Biomechanical Principles 3166
The Aging Spine 3172
Biomechanics of Intervention 3172
Conclusion 3176
suggested readings 3176
Chapter 266: Biomaterials and Biomechanics of Spinal Arthroplasty 3177
Anatomy of the Normal Spinal Disk and the Degenerative Process 3177
Arthroplasty Biomaterials 3178
Basic Terms for Biomaterials 3179
Goals for Biomaterials Used for Disk Replacement 3179
Alloys Available for Total Disk Arthroplasty 3179
Other Materials 3179
Imaging Properties of Biomaterials 3180
Normal Biomechanics of the Spine 3180
Biomechanics of Total Disk Arthroplasty 3180
Conclusion 3183
suggested readings 3184
Chapter 267: Principles of Translation of Biologic Therapies in Spinal Cord Injury 3185
Unique Aspects of Spinal Cord Pathophysiology 3185
Translational Research and Clinical Trials 3185
Unique Translational Aspects of Spinal Cord Injury 3186
What Is A “Biologic?” 3186
Delivery of Biologic Therapies 3187
Outcome Measures and Surrogate Markers 3187
Spinal Cord Injury Models 3187
Key Considerations in Spinal Cord Repair 3187
Important Examples of Attempts to Translate Biologic Therapies 3188
Other Biologics for Which Clinical Trials Have Been Proposed 3190
Cellular and Tissue Transplantation for Spinal Cord Injury 3191
Surgical Implantation of Cells 3194
Combinatorial Treatment 3194
Alternative Solutions to Spinal Cord Injury 3194
Managing Expectations 3194
Conclusion 3195
suggested readings 3195
Chapter 268: Current Status and Future Direction of Management of Spinal Cord Injury 3196
Pathophysiology of Spinal Cord Injury and A Basis for Therapeutics 3196
Current Treatment of Spinal Cord Injury 3196
Pharmacotherapy and Completed Randomized Controlled Trials for Acute Spinal Cord Injury 3199
Toward the Next Generation of Trials 3201
Ongoing Clinical Trials 3201
Conclusion 3206
Acknowledgments 3206
suggested readings 3206
Chapter 269: Intraoperative Monitoring of the Spinal Cord and Nerve Roots 3207
Conventional Monitoring Modalities and Evidence for Monitoring 3207
Somatosensory Evoked Potentials 3207
Motor Evoked Potentials 3208
Electromyography 3209
Additional Options for Comprehensive Multimodality Monitoring 3210
Anesthetic Considerations 3210
Illustrative Cases 3211
Future Developments for Combining Surgical Microscopy with Intraoperative Monitoring 3213
Conclusion 3213
suggested readings 3217
Chapter 270: Concepts of Disk Degeneration and Regeneration 3218
Composition of a “Normal” Disk 3218
Disk Degeneration 3219
Disk Regeneration 3227
Conclusion 3227
suggested references 3227
Chapter 271: Bone Metabolism and Osteoporosis and Its Effects on Spinal Disease and Surgical Treatments 3229
Bone Metabolism 3229
Osteoporosis 3230
Pathophysiology 3230
Clinical Findings and Diagnosis 3231
Conservative and Medical Management 3232
Surgical Treatment of Osteoporotic Vertebral Compression Fractures 3232
Osteoporosis and Implications for Spinal Instrumentation 3233
Strategies for Spinal Fixation in Osteoporosis 3234
Conclusion 3237
suggested readings 3237
Section 10 Part 3 3239
Chapter 272: Differential Diagnosis and Initial Management Spine Pathology 3239
Pain 3239
Neurological Deficit 3248
suggested readings 3254
Chapter 273: Diagnosis and Management of Diskogenic Lower Back Pain 3255
Physiology of Intervertebral Disks 3255
Degeneration of the Intervertebral Disk 3256
Diskogenic Low Back Pain 3257
Diagnosis of Diskogenic Lower Back Pain 3258
Nonoperative Management of Diskogenic Lower Back Pain 3259
Surgical Management of Diskogenic Lower Back Pain 3259
Future Treatment of Diskogenic Lower Back Pain 3260
suggested readings 3260
Chapter 274: Metabolic and Other Nondegenerative Causes of Low Back Pain 3262
Metabolic Bone Disease 3262
Inflammatory Disorders 3263
Infection 3265
Neoplastic Disease 3266
Nonvertebral Spinal Tumors 3270
Retroperitoneal and Pelvic Disorders 3270
Conclusion 3271
Acknowledgments 3271
suggested readings 3271
Chapter 275: Evaluation, Indications, and Techniques of Revision Spine Surgery 3272
Initial Evaluation 3272
General Surgical Principles 3272
Recurrent Lumbar Disk Herniation 3273
Postoperative Spinal Instability and Deformity 3274
Postlaminectomy Cervical Kyphosis 3275
Segmental Instability after Posterior Lumbar Decompression 3278
Pseudarthrosis 3279
Postarthrodesis Adjacent Segment Disease 3292
Conclusion 3295
suggested readings 3296
Section 10 Part 4 3297
Chapter 276: Infections of the Spine 3297
Spontaneous Pyogenic Spine Infections 3297
Pyogenic Spine Infections in Children 3307
Iatrogenic Infections 3308
Unusual Bacterial Pathogens 3310
Fungal Infections 3312
Parasitic Infections 3313
suggested readings 3313
Chapter 277: Fungal and Tubercular Infections of the Spine 3314
Epidemiology 3314
Historical Perspective 3317
Pathophysiology 3318
Clinical Findings 3318
Treatment 3319
Conclusion 3323
Acknowledgments 3323
suggested readings 3324
Section 10 Part 5 3325
Chapter 278: Treatment of Disk and Ligamentous Diseases of the Cervical Spine 3325
Historical Background 3325
Anatomy AND Pathophysiology 3325
Clinical Findings 3327
Diagnostic Studies 3327
Nonoperative Management 3328
Operative Management 3330
suggested readings 3333
Chapter 279: Posterior Approach to Cervical Degenerative Disease 3334
Clinical Evaluation 3334
Imaging 3334
Indications for Surgical Treatment 3335
Anesthesia and Positioning 3335
Spinal Cord Monitoring 3336
Exposure 3336
Foraminotomy/Diskectomy 3336
Laminectomy and Laminaplasty 3337
Cervical Posterior Segmental Instrumentation 3338
Closure 3339
Complications and Avoidance 3339
Outcomes 3340
Conclusion 3340
suggested readings 3340
Chapter 280: Anterior Approach for Cervical Spondylotic Myelopathy 3342
Historical Perspective 3342
Cervical Spine Anatomy 3342
Biomechanics 3343
Pathophysiology: the Degenerative Process 3343
Clinical Manifestations 3344
Diagnostic Studies 3344
Surgical Decision Making 3346
Operative Technique for the Anterior Approach 3346
Complications 3352
Conclusion 3353
suggested readings 3353
Chapter 281: Spondyloarthropathies (Including Ankylosing Spondylitis) 3354
Major Types of Spondyloarthropathy 3354
Pathophysiology 3355
Clinical Findings and Diagnosis 3355
Primary Management 3358
Trauma Management 3358
Surgical Management 3359
Conclusion 3363
suggested readings 3363
Chapter 282: Ossification of the Posterior Longitudinal Ligament and Other Enthesopathies 3365
Background and Epidemiology 3365
Pathophysiology 3365
Clinical Findings 3366
Diagnosis 3367
Natural History 3367
Management 3368
Surgical Results 3373
Progression of Disease 3374
Thoracic Disease 3375
Conclusion 3375
suggested readings 3376
Chapter 283: Treatment of Thoracic Disk Herniation 3377
History and Epidemiology 3377
Clinical Presentation and Differential Diagnosis 3377
Radiologic Evaluation 3377
Management 3378
Results and Complications 3383
Conclusion 3384
suggested readings 3384
Chapter 284: Treatment of Disk Disease of the Lumbar Spine 3385
History 3385
Anatomy 3385
Pathophysiology 3385
Clinical Findings 3386
Treatment Options 3387
Conclusion 3388
suggested readings 3388
Chapter 285: Lumbar Spine Stenosis 3389
Anatomy 3389
Symptoms and Signs 3389
Diagnostic Studies 3389
Pathology Mimicking Lumbar Stenosis 3390
Associated Conditions 3390
Nonsurgical Versus Surgical Management 3392
Pre- and Postoperative Considerations 3392
Minimally Invasive Surgery 3394
X-Stop Procedures 3394
Endoscopic Decompression 3395
Expansive Laminaplasty 3395
Open Decompression Procedures 3395
Outcome 3396
Surgical Technique of Lumbar Laminectomy 3398
Complications: Cerebrospinal Fluid Fistulas 3399
Postoperative Rehabilitation 3399
suggested readings 3399
Chapter 286: Pediatric Spondylolisthesis 3401
Epidemiology 3401
Classification 3401
Measurement 3408
Clinical Findings 3408
Differential Diagnosis 3409
Diagnostic Studies 3409
Natural History 3409
Treatment 3410
Conclusion 3411
suggested readings 3411
Chapter 287: Adult Thoracolumbar Scoliosis 3413
Classification and Etiology 3413
Clinical Findings and Evaluation 3413
Diagnostic Evaluation 3415
Nonoperative Management 3415
Surgical Management 3415
Outcomes 3418
Conclusion 3418
suggested readings 3418
Chapter 288: Flat Back and Sagittal Plane Deformity 3419
History, Etiology, Incidence, and Rate of Progression 3419
Clinical Findings 3419
Prevention of Flat Back and Sagittal Plane Deformity 3419
Radiographic Findings 3420
Nonoperative Treatment 3420
Operative Treatment of Sagittal Plane Deformity 3420
Postoperative Care 3425
Summary 3425
Conclusion 3425
suggested readings 3425
Section 10 Part 6 3427
Chapter 289: Acquired Abnormalities of the Craniocervical Junction 3427
Normal Anatomy 3427
Rheumatoid Arthritis 3427
Seronegative Spondyloarthritides 3436
suggested readings 3438
Chapter 290: Congenital Abnormalities of the Thoracic and Lumbar Spine 3439
Epidemiology and Associated Disorders 3439
Conclusion 3444
suggested readings 3444
Section 10 Part 7 3445
Chapter 291: Basic Principles of Spinal Internal Fixation 3445
Basic Biomechanics 3445
Physiologic Spinal Loading 3447
Basics of Spinal Instrumentation 3448
Fixation Categories 3450
Practical Applications of the Biomechanics of Spinal Fixation 3450
Emerging Treatments 3452
Conclusion 3456
suggested readings 3456
Chapter 292: Bone Graft Options, Bone Graft Substitutes, and Bone Harvest Techniques 3458
History of Spinal Arthrodesis 3458
Principles of Bone Physiology 3458
Bone Healing 3459
Biomechanical Considerations 3459
Assessment of Fusion 3459
Autograft 3459
Allograft 3462
Demineralized Bone Matrix 3462
Xenograft 3462
Synthetic Bone Graft Substitutes 3462
Fusion Enhancers 3462
Clinical Applications of Bone Graft Materials 3463
Conclusion 3464
suggested readings 3464
Chapter 293: Cervical Arthroplasty 3465
Evolution of Cervical Arthroplasty 3465
Nomenclature of Cervical Arthroplasty 3465
Clinical Trials 3465
Conclusion 3467
suggested readings 3467
Chapter 294: Lumbar Arthroplasty: 3468
Total Disk Replacement 3468
Nucleus Replacement 3470
Conclusion 3472
suggested readings 3472
Chapter 295: Nucleoplasty and Posterior Dynamic Stabilization Systems 3474
Nucleoplasty 3474
Chemothermal Ablation: Chemonucleolysis and intradiscal electrothermal therapy 3474
Minimally Invasive Disk Decompression 3475
suggested readings 3480
Chapter 296: Spinopelvic Fixation 3481
History of Spinopelvic Fixation 3481
Anatomy of the Lumbosacral Spine and Pelvis 3481
Biomechanics of the Lumbosacral Spine 3481
Conclusions 3486
suggested readings 3486
Section 10 Part 8 3487
Chapter 297: Anterior Cervical Instrumentation 3487
Indications for Anterior Cervical Screw-Plate Fixation 3487
Conclusion 3502
suggested readings 3502
Chapter 298: Occiput, C1, and C2 Instrumentation 3503
Indications for Fusion—Occipitocervical 3503
Indications for Fusion—C1-2 3503
Preoperative Preparation and Exposure 3504
Operative Techniques—Wiring 3504
Conclusion 3510
suggested readings 3510
Chapter 299: Posterior Subaxial and Cervicothoracic Instrumentation 3511
Indications 3511
Anatomy/Exposure 3511
Techniques of Instrumentation 3511
Biomechanical Considerations 3515
Conclusion 3515
Acknowledgement 3516
suggested readings 3516
Chapter 300: Anterior Thoracic Instrumentation 3517
Historical Background 3517
Indications for Operative Intervention 3517
Surgical Approaches to the Anterior Thoracic Spine 3518
Corpectomy and Fusion 3521
Fusion Techniques of the Anterior Thoracic Spine 3521
Instrumentation of the Anterior Thoracic Spine 3522
Complications Related to Operative Intervention 3526
Conclusion 3526
suggested readings 3526
Chapter 301: Posterior Thoracic Instrumentation 3527
Anatomy and Biomechanics 3527
Biomechanics 3527
Techniques for Posterior Thoracic Internal Fixation 3528
Anterior Column Reconstruction Through A Posterior Approach 3530
Conclusion 3532
suggested readings 3533
Chapter 302: Anterior Lumbar Instrumentation 3534
Indications 3534
Surgical Approaches 3535
Biomechanics of Anterior Lumbar Instrumentation 3538
Instrumentation 3539
Complications 3539
Conclusion 3540
suggested readings 3540
Chapter 303: Posterior Lumbar Instrumentation 3541
Indications for Instrumentation 3541
Posterior Lumbar Instrumentation 3541
Implantation Techniques 3543
Outcomes 3546
Conclusion 3548
suggested readings 3548
Chapter 304: Posterior, Transforaminal, and Anterior Lumbar Interbody Fusion: 3549
Background 3549
Indications For Lumbar Interbody Fusion 3549
Biomechanical Considerations 3550
Interbody Grafts 3550
Posterior Lumbar Interbody Fusion 3551
TransForaminal Lumbar Interbody Fusion 3551
Anterior Lumbar Interbody Fusion 3552
Proposed Benefits Of Minimal Access Approaches 3553
Conclusion 3553
suggested readings 3553
Chapter 305: Image-Guided Spinal Navigation: 3554
Principles Of Image-Guided Spinal Navigation 3554
Clinical Applications 3556
Pitfalls Of Image-Guided Spinal Navigation 3561
Fluoroscopic Navigation 3561
Conclusion 3562
suggested readings 3562
Chapter 306: Thoracoscopic Approaches to the Spine 3563
Historical Overview 3563
Indications 3563
Contraindications 3563
Educational Issues 3564
Thoracoscopic Technique 3564
Thoracic Endoscopic Sympathectomy 3567
Thoracic Endoscopic Diskectomy, Vertebrectomy, And Reconstruction 3569
Thoracic Endoscopic Resection of Thoracic Tumors 3572
Complications 3573
Conclusion 3573
suggested readings 3574
Chapter 307: Minimally Invasive Techniques for Lumbar Disorders 3575
Lumbar Diskectomy 3575
Stenosis Decompression 3575
Lumbar Fusion 3576
Intradural Surgery 3578
Video Minimally Invasive L3-4 Schwannoma Resection 3579
Conclusion 3579
suggested readings 3579
Section 10 Part 9 3580
Chapter 308: Tumors of the Craniovertebral Junction 3580
Common Clinical Manifestations of Craniovertebral Junction Tumors 3580
Neurodiagnostic Imaging 3581
Electrophysiologic Tests 3581
Surgical Approaches and Decision Making 3582
Extradural Tumors of the Craniovertebral Junction 3584
Intradural Tumors 3591
suggested readings 3596
Chapter 309: Spinal Cord Tumors in Adults 3597
Extramedullary Tumors 3597
Intramedullary Tumors 3603
Conclusion 3609
suggested readings 3609
Chapter 310: Evaluation and Management of Spinal Axis Tumors: 3610
Clinical Features 3610
Clinical Evaluation 3610
Histopathologic Diagnosis 3611
Benign Primary Spinal Tumors 3611
Malignant Primary Spinal Tumors 3615
Chemotherapy and Radiation Therapy 3617
Surgical Management 3617
Conclusion 3618
suggested readings 3618
Chapter 311: Evaluation and Management of Spinal Axis Tumors: 3620
Epidemiology 3620
Presentation and Diagnosis 3620
Management 3621
Medications 3623
Surgery 3624
Radiation 3628
Conclusion 3630
suggested readings 3630
Section 10 Part 10 3632
Chapter 312: Assessment of the Cervical Spine after Trauma 3632
Epidemiology 3632
Acute Care of Cervical Spine Injuries 3633
Classification of Cervical Spine Injuries 3639
Two- and Three-Column Concepts 3639
Cervical Spine Stability 3640
Closed Reduction 3640
Restoration of Spinal Stability 3641
Specific Lesions and Their Management 3642
Conclusion 3646
suggested readings 3646
Chapter 313: Evaluation and Management of Craniocervical Dissociation 3647
Anatomy and Biomechanics 3647
Mechanisms of Injury 3647
Clinical Findings 3647
Radiology 3648
Treatment Considerations 3650
suggested readings 3651
Chapter 314: Atlantoaxial Rotatory Subluxation, Transverse Ligament Injury 3652
Anatomy and Biomechanics of The Atlantoaxial Joint 3652
Diagnosis and Classification 3652
Grisel’s Syndrome 3653
Management 3654
Conclusion 3656
suggested readings 3657
Chapter 315: Evaluation and Treatment of Odontoid and Hangman’s Fractures 3658
Anatomy 3658
Odontoid Fractures 3658
Hangman’s Fracture 3665
suggested readings 3666
Chapter 316: Pathology of the Cervicothoracic Junction: 3667
History and Physical Examination 3667
Anatomy 3667
Biomechanical Considerations 3669
Diagnostic Studies 3669
Surgical Approaches 3670
Pathology at the Cervicothoracic Junction 3674
Trauma 3675
Conclusion 3676
suggested readings 3676
Chapter 317: Transient Quadriparesis and Athletic Injuries of the Cervical Spine 3677
Epidemiology and Significance 3677
Predisposing Factors 3677
Anatomic Considerations and Biomechanics 3677
Mechanisms of Injury 3678
Transient Quadriplegia and Common Neurological Syndromes Associated with Athletics 3679
On-Field Evaluation and Management of the Athlete with Suspected Cervical Injury 3680
Return to Play 3680
Conclusion 3681
suggested readings 3681
Chapter 318: Diagnosis and Management of Thoracic Spine Fractures 3682
Historical Perspective 3682
Epidemiology 3682
Anatomic and Biomechanical Considerations 3682
Spinal Instability 3683
Mechanism of Injury 3685
Initial Management of a Thoracic Spine Injury 3688
Surgical versus Nonsurgical Management 3689
Surgical Management of Thoracic Injuries 3690
Surgical Approaches for Thoracic Fractures 3691
Anterior Transthoracic Decompression 3692
Treatment of Specific Injuries 3693
Complications 3698
suggested readings 3698
Chapter 319: Thoracolumbar Trauma 3699
Anatomy 3699
Initial Assessment and Management 3700
Classification 3703
Management Considerations 3706
Complications 3714
Conclusion 3714
suggested readings 3714
Chapter 320: Sacral Fractures 3716
Anatomy of the Sacrum 3716
Pathophysiology and Classification of Sacral Fractures 3716
Sacral Insufficiency Fractures 3718
Clinical Presentation 3718
Diagnostic Imaging 3719
Management 3719
Conclusion 3720
suggested readings 3720
Chapter 321: Osteoporotic Fractures: 3721
History 3721
Indications and Contraindications 3721
Patient Evaluation 3721
Technique 3724
Complications 3729
Outcomes 3729
Conclusion 3729
suggested readings 3730
Index 3731
e9781416053163v4 3823
Front cover 3823
Front Matter 3825
Youmans Neurological Surgery 3827
Copyright page 3828
Dedication 3829
EDITOR-IN-CHIEF 3830
Section Editors 3831
Video Editors 3835
Table of contents 3837
Contributors 3855
Preface 3915
SECTION XI: Trauma 3917
Chapter 322: Introduction to Traumatic Brain Injury 3919
Neurotrauma Research 3919
Chapter 323: Epidemiology of Traumatic Brain Injury 3922
Definitions 3922
Classification of Traumatic Brain Injury 3923
The Impact of Traumatic Brain Injury from A Global Perspective 3923
The Long and Winding Road of the Epidemiology of Traumatic Brain Injury 3927
suggested readings 3927
Chapter 324: Biomechanical Basis of Traumatic Brain Injury 3929
Clinical Classification of Brain Injuries 3929
Mechanisms of Injury 3929
Mechanistic Causes of Head Injuries 3931
Injuries and Their Mechanisms 3935
Summary Of The Mechanisms Of Primary Injuries 3939
suggested readings 3939
Chapter 325: Neuropathology of Traumatic Brain Injury 3940
Traumatic Axonal Injury 3940
Traumatic Vascular Injury 3942
Traumatic Subarachnoid Hemorrhage 3945
Traumatic Intracerebral Hemorrhage 3945
Extradural (Epidural) Hematoma 3946
Subdural (Intradural) Hematoma 3946
Brain Swelling 3947
Brain Swelling in Head Injury 3948
Brain Damage Secondary to Raised Intracranial Pressure 3948
Ischemic Brain Damage in Traumatic Brain Injury 3950
Focal Ischemia in Traumatic Brain Injury 3950
suggested readings 3951
Chapter 326: Animal Models of Traumatic Brain Injury 3952
Experimental Models 3952
Clinical Factors Incorporated Into Experimental Models of Traumatic Brain Injury 3955
Confounding Factors Inherent In Experimental Models of Traumatic Brain Injury 3956
Conclusion 3956
Acknowledgment 3956
suggested readings 3956
Chapter 327: Neurochemical Pathomechanisms in Traumatic Brain Injury 3957
Primary Injury: Molecular And Microscopic Aspects 3957
Secondary Injury Processes 3960
Cell Death 3970
Unique Neuronal And Glial Responses To Traumatic Brain Injury 3971
Other Molecules And Pathways Important After Traumatic Brain Injury 3972
Modifiers Of Response To Traumatic Brain Injury 3975
Conclusion 3976
suggested readings 3976
Chapter 328: Regeneration and Repair 3977
Trauma-Induced Plasticity 3977
The Injury Microenvironment: A Double-Edged Sword 3977
Endogenous Neurogenesis after Traumatic Brain Injury 3979
Evidence of Functional Recovery 3982
Developing Therapies for Functional Recovery after Traumatic Brain Injury 3983
Conclusion 3987
suggested readings 3987
Chapter 329: Current Concepts of Hypothermia in Traumatic Brain Injury 3989
Experimental Brain Trauma 3989
Rewarming Phase 3989
The Importance of Gender 3990
Mechanisms of Hypothermic Protection 3990
Clinical Studies 3991
Methods of Cooling 3992
Pediatric Traumatic Brain Injury 3992
Posttraumatic Hyperthermia 3992
Conclusion and Future Directions 3992
suggested readings 3993
Chapter 330: Imaging of Traumatic Brain Injury 3994
Imaging Options 3994
Computed Tomography 3994
Magnetic Resonance Imaging (MRI) 3995
Magnetic Source Imaging (MSI) 3996
Single Photon Emission Tomography (SPECT) 3996
Positron Emission Tomography (PET) 3996
Imaging Findings 3996
Primary Extra-Axial Injury 3997
Primary Intra-Axial Injury 4002
Vascular Injury 4005
Acute Secondary Injury 4008
Chronic Secondary Injury 4008
Conclusion 4009
Acknowledgements 4012
suggested readings 4012
Chapter 331: Clinical Pathophysiology of Traumatic Brain Injury 4014
Mechanisms of Brain Injury 4014
Classification of Head Injury 4015
Focal Brain Injury 4017
Diffuse Brain Injury 4020
Normal Physiology of Cerebral Metabolism and Circulation 4022
Cerebral Circulation and Metabolism after Severe Head Injury: Mechanisms of Secondary Injury 4023
Significance of Extracranial Injury 4029
Conclusion 4031
suggested readings 4031
Chapter 332: Mild Traumatic Brain Injury in Adults and Concussion in Sports 4032
Definition of Concussion and Mild Traumatic Brain Injury 4032
Pathophysiology of Mild Head Injury 4033
suggested readings 4040
Chapter 333: Initial Resuscitation, Prehospital Care, and Emergency Room Care in Traumatic Brain Injury 4042
Prehospital Management 4042
General Trauma Resuscitation and the Trauma Team 4043
Primary Survey 4044
Secondary Survey and Neurological Assessment 4045
Radiographic Evaluation 4046
Acute Trauma Management 4047
Conclusion 4047
suggested readings 4048
Chapter 334: Critical Care Management of Traumatic Brain Injury 4049
History of Head Trauma Management 4049
Pathophysiology of Traumatic Brain Injury 4052
Neurological Intensive Care Monitoring 4057
Neurological Intensive Care Management 4064
suggested readings 4074
Chapter 335: Surgical Management of Traumatic Brain Injury 4076
Conservative Management 4076
Indications for the Evacuation of Intracranial Hematomas 4077
Evaluation of Relevant Findings on Computed Tomography 4080
Preoperative Preparation 4080
Ventriculostomy 4082
Exploratory Bur Holes 4083
General Considerations for Supratentorial Hematomas 4083
Epidural Hematoma 4085
Acute Subdural Hematoma 4088
Intraparenchymal Hemorrhage and Contusion 4089
Posterior Fossa Hematoma 4092
Decompressive Craniectomy 4094
Depresssed Skull Fracture 4094
Compound Frontal Air Sinus Injury 4096
Depressed Skull Fracture over a Venous Sinus 4096
Chronic Subdural Hematoma 4099
Cranioplasty 4100
Complications 4102
Conclusion 4103
suggested readings 4104
Chapter 336: Traumatic and Penetrating Head Injuries 4105
Ballistics, Wounding Energy, and Pathogenesis 4105
Pathology 4106
Clinical Findings 4109
Management 4111
Complications 4113
Prognosis 4115
suggested readings 4116
Chapter 337: Blast-Induced Neurotrauma 4117
Blast Injury is a Frequent Cause of Traumatic Brain Injury in the Modern Combat Theater 4117
Blast Injury May Induce Changes in the Brain Not Seen With Non– Blast-Related Mechanisms 4117
primary Blast injury Biomarkers 4117
Cognitive Sequelae of primary Blast-Induced Neurotrauma 4119
Differentiation between Posttraumatic Stress Disorder and Mild Traumatic Brain Injury 4119
Current Neurosurgical Experience in Operation Iraqi Freedom 4120
suggested readings 4121
Chapter 338: Indications and Techniques for Cranial Decompression after Traumatic Brain Injury 4122
Background 4122
Indications 4123
Technique 4123
Complications 4127
Outcomes 4128
Conclusion 4129
suggested readings 4130
Chapter 339: Craniofacial Injuries 4131
Epidemiology 4131
Functional Anatomy 4131
Pathophysiology 4132
Mechanisms of Injury 4133
Initial Management 4134
Clinical Assessment 4134
Investigations 4135
Management 4136
Definitive Repair 4136
Surgical Principles 4137
Specific Fracture Patterns 4138
Fractures of the Mandible 4141
Multiple and Panfacial Fractures 4143
Infancy and Childhood 4145
Senescence 4146
Gunshot Wounds 4146
Soft Tissue Injury 4146
Complications 4146
Impairments and Disabilities 4147
suggested readings 4147
Chapter 340: Prognosis after Traumatic Brain Injury 4149
Methodologic Issues in Prognostic Studies 4149
Prognostic Models 4155
suggested readings 4157
Chapter 341: Traumatic Cerebrospinal Fluid Fistulas 4159
Epidemiology 4159
Pathophysiology 4159
Clinical Features 4161
Investigation 4161
Management 4163
Definitive Treatment 4163
The Future 4167
suggested readings 4167
Chapter 342: Rehabilitation of Patients with Traumatic Brain Injury 4168
Definitions and Epidemiology 4168
Mechanisms of Recovery 4169
Cognitive Dysfunction in Traumatic Brain Injury 4170
Dysautonomia 4171
Agitation in Traumatic Brain Injury 4177
Sleep Disturbance 4178
TBI and VTE Prophylaxis 4178
Spasticity 4179
Dysphagia 4180
Nutrition 4181
Posttraumatic Hydrocephalus 4181
Depression 4182
Apathy 4182
Fecal Incontinence 4183
Urinary Incontinence 4183
Headache 4183
Neuropathic Pain 4184
Complex Regional Pain Syndrome 4184
Heterotopic Ossification 4185
suggested readings 4186
SECTION XII: Vascular 4187
Chapter 343: Cerebral Blood Flow and Metabolism and Cerebral Ischemia 4189
Cerebral Metabolism 4189
Cerebral Blood Flow 4195
Clinical Measurement of Cerebral Blood Flow and Metabolism 4203
Cerebral Ischemia 4206
Conclusion 4214
suggested readings 4214
Chapter 344: Acute Medical Management of Ischemic/Hemorrhagic Stroke 4215
Pathophysiology of Ischemic Stroke 4215
Pathophysiology of Hemorrhagic Stroke 4215
Patient Evaluation 4216
Reperfusion 4216
Stroke Management 4220
Surgical Intervention 4221
Conclusion 4222
suggested readings 4222
Chapter 345: Intraoperative Cerebral Protection 4223
Pathophysiology of Ischemic Injury 4223
Cerebroprotective Strategies for Focal Ischemia 4226
Surgical Protocol 4231
Conclusion 4232
suggested readings 4232
Chapter 346: Circulatory Arrest with Deep Hypothermia 4233
Temporary Clipping: Limitations of Focal Circulatory Arrest 4233
Cerebral Ischemia: Pathophysiology and Protection 4233
Hypothermia: Cerebroprotective Effects 4234
Hypothermia: Physiologic Considerations 4234
Deep Hypothermic Circulatory Arrest: Indications 4235
Clinical Techniques 4235
Conclusion 4241
Chapter 347: Transcranial Doppler Ultrasonography and Neurosonology 4242
Background and Principles of Ultrasonography 4242
Intraoperative Ultrasonography 4242
Applications of Duplex Scanning in Cerebrovascular Disease 4245
Applications of Transcranial Doppler in Stroke and Cerebrovascular Disease 4245
Transcranial Doppler applications in Neurosurgery and Neuro–Critical Care 4247
Neurosonology as a Treatment Modality 4251
Conclusion 4254
Acknowledgment 4254
suggested readings 4254
Chapter 348: Neurovascular Imaging 4255
Computed Tomography–Based Techniques 4255
Magnetic Resonance Imaging–Based Techniques 4259
Acknowledgment 4266
suggested readings 4266
Chapter 349: Carotid Occlusive Disease: 4267
Pathologic Mechanisms of Atherosclerosis 4267
Clinical Manifestations of Atherosclerosis 4268
Natural History of Extracranial Carotid Disease 4268
Medical Management of Extracranial Carotid Disease 4269
Acknowledgments 4272
Chapter 350: Carotid Endarterectomy 4273
History 4273
Preoperative Evaluation 4273
Indications Based on Randomized Controlled Trials 4274
Technique 4276
Long-Term Results 4282
Conclusion 4283
suggested readings 4283
Chapter 351: Carotid Artery Angioplasty and Stenting 4284
Historical Perspective 4284
Carotid Endarterectomy Trials 4284
Publication of Carotid Angioplasty and Stenting Study Data 4285
Current Studies 4288
Indications for Carotid Angioplasty and Stenting 4288
Procedural Technique 4289
Device Selection 4291
Periprocedural Management 4291
Procedural Durability 4292
Complications and Their Management 4292
New Frontiers 4296
Conclusion 4297
Acknowledgment 4297
suggested readings 4297
Chapter 352: Blunt Cerebrovascular Injury 4299
Pathology 4299
Clinical Presentation 4300
Imaging and Diagnosis 4301
Management 4304
Outcome 4306
suggested readings 4306
Chapter 353: Nonatherosclerotic Carotid Lesions 4307
Carotid Body Tumors 4307
Fibromuscular Dysplasia 4310
Extracranical Carotid Artery Aneurysms 4311
Spontaneous Carotid Artery Dissection 4313
Radiation Stenosis 4314
suggested readings 4315
Chapter 354: Extracranial Vertebral Artery Diseases 4317
HISTORICAL BACKGROUND 4317
CLINICAL PRESENTATION 4317
ANATOMY OF THE EXTRACRANIAL VERTEBRAL ARTERY 4317
PATHOPHYSIOLOGY OF EXTRACRANIAL VERTEBRAL ARTERY DISEASE 4318
DIAGNOSTIC EVALUATION 4319
MEDICAL MANAGEMENT 4320
ENDOVASCULAR MANAGEMENT 4321
SURGICAL MANAGEMENT 4322
CONCLUSION 4331
SUGGESTED READINGS 4332
Chapter 355: Intracranial Occlusive Disease 4333
Intracranial Atherosclerosis 4333
Conclusion 4340
suggested readings 4340
Chapter 356: Adult Moyamoya Disease 4341
EPIDEMIOLOGY 4341
PATHOPHYSIOLOGY AND ETIOLOGY 4341
CLINICAL FINDINGS 4343
NEUROIMAGING 4343
TREATMENT 4345
PROGNOSIS 4348
CONCLUSION 4348
Acknowledgment 4348
suggested readings 4348
Chapter 357: Cerebral Venous and Sinus Thrombosis 4350
History and Clinical Significance 4350
Pathogenesis 4350
Incidence 4350
Clinical Findings 4350
Diagnostic Evaluation 4351
Treatment 4353
Surgery 4356
Outcome 4356
Conclusion 4357
suggested readings 4357
Chapter 358: Nonlesional Spontaneous Intracerebral Hemorrhage 4358
Historical Review 4358
Epidemiology and Relevance 4358
Causes 4359
Clinical Findings and Diagnosis 4361
Hematoma Location and Clinical Profile 4362
Medical Management 4365
Surgical Management 4367
Conclusion 4381
suggested readings 4381
Chapter 359: Genetics of Intracranial Aneurysms 4382
Heritable Connective Tissue Disorders 4382
Familial Intracranial Aneurysms 4385
suggested readings 4388
Chapter 360: The Natural History of Cerebral Aneurysms 4389
Natural History of Unruptured Aneurysms 4389
Natural History of Ruptured Aneurysms 4394
suggested readings 4397
Chapter 361: Pathobiology of Intracranial Aneurysms 4399
PATHOBIOLOGY OF SACCULAR INTRACRANIAL ANEURYSMS 4399
MECHANISMS OF ANEURYSM WALL DEGENERATION AND RUPTURE 4402
CONCLUSION 4406
suggested readings 4406
Chapter 362: Surgical Decision Making for the Treatment of Intracranial Aneurysms 4408
Overview: The Status of the Patient and the Natural History of the Aneurysm 4408
Neuroradiological Evaluation 4408
Unruptured and Ruptured Aneurysms: Impact on Decision Making 4408
Endovascular Aneurysm Occlusion 4418
suggested readings 4423
Chapter 363: Perioperative Management of Subarachnoid Hemorrhage 4424
PATHOPHYSIOLOGY 4424
PATIENT EVALUATION 4425
DIAGNOSIS 4426
GENERAL MANAGEMENT 4430
COMPLICATIONS SPECIFIC TO SUBARACHNOID HEMORRHAGE 4432
MEDICAL COMPLICATIONS 4434
POSTOPERATIVE DETERIORATION 4439
SPECIAL CONSIDERATIONS 4439
CLINICAL OUTCOME AFTER SUBARACHNOID HEMORRHAGE 4440
suggested readings 4441
Chapter 364: Cerebral Vasospasm 4443
VASOSPASM IN CONDITIONS OTHER THAN ANEURYSM RUPTURE 4443
EPIDEMIOLOGY OF VASOSPASM 4443
PREDICTION OF VASOSPASM 4443
PATHOGENESIS 4445
CLINICAL FEATURES AND INVESTIGATION 4445
PREVENTION OF VASOSPASM AND CEREBRAL PROTECTION 4447
REVERSAL OF VASOSPASM AND CEREBRAL ISCHEMIA: RESCUE TREATMENTS 4449
PRACTICAL APPROACH TO THE PREVENTION AND TREATMENT OF CEREBRAL VASOSPASM 4450
Acknowledgment 4451
suggested readings 4451
Chapter 365: Surgical Anatomy to Intracranial Aneurysms 4453
Anterior Circulation 4455
Posterior Circulation 4463
Aneurysm Occlusion 4471
Conclusions 4474
suggested readings 4475
Chapter 366: Microsurgery of Paraclinoid Aneurysms 4476
ANATOMY 4476
ANEURYSM CLASSIFICATION 4478
INDICATIONS FOR TREATMENT 4480
PREOPERATIVE EVALUATION 4480
OPERATIVE TECHNIQUE 4482
SURGICAL COMPLICATIONS AND OUTCOME 4485
suggested readings 4485
Chapter 367: Intracranial Internal Carotid Artery Aneurysms 4486
DIAGNOSTIC EVALUATION 4486
OPERATIVE MANAGEMENT 4486
SPECIFIC ANEURYSM LOCATION 4487
INFUNDIBULUM 4491
INTRAOPERATIVE ANEURYSM RUPTURE 4491
OUTCOME 4491
CONCLUSION 4492
suggested readings 4492
Chapter 368: Anterior Communicating Artery Aneurysms 4493
SURGICAL MANAGEMENT OF ANTERIOR COMMUNICATING ARTERY AND PROXIMAL ANTERIOR CEREBRAL ARTERY ANEURYSMS 4493
ANATOMIC AND MORPHOLOGIC SELECTION CRITERIA FOR ENDOVASCULAR TREATMENT OF ANTERIOR COMMUNICATING ARTERY ANEURYSMS 4503
suggested readings 4504
Chapter 369: Microsurgery of Distal Anterior Cerebral Artery Aneurysms 4505
RELEVANT ANATOMY 4505
CLINICAL PRESENTATION 4505
SURGICAL CONSIDERATIONS 4506
PREOPERATIVE PREPARATION 4507
OPERATIVE PROCEDURE 4507
CLINICAL SERIES 4508
CONCLUSION 4513
suggested readings 4513
Chapter 370: Surgical Management of Middle Cerebral Artery Aneurysms 4514
MIDDLE CEREBRAL ARTERY ANATOMY 4514
CLASSIFICATION OF MIDDLE CEREBRAL ARTERY ANEURYSMS 4514
PRESENTATION AND EVALUATION OF MIDDLE CEREBRAL ARTERY ANEURYSMS 4516
SURGICAL TREATMENT OF MIDDLE CEREBRAL ARTERY ANEURYSMS 4516
CONCLUSION 4521
suggested readings 4521
Chapter 371: Microsurgery of Vertebral Artery, Posterior Inferior Cerebellar Artery, and Vertebrobasilar Junction Aneurysms 4523
CLINICAL SIGNIFICANCE 4523
INDICATIONS 4523
PRESENTATION 4525
DIAGNOSTIC EVALUATION 4525
PREOPERATIVE EVALUATION 4530
TECHNIQUE 4530
COMPLICATIONS 4534
OUTCOMES 4535
CONCLUSION 4537
suggested readings 4537
Chapter 372: Basilar Trunk Aneurysms 4538
CLINICAL PRESENTATION 4538
ANATOMY OF BASILAR TRUNK ANEURYSMS AND SURROUNDING STRUCTURES 4538
ENDOVASCULAR TREATMENT OF BASILAR TRUNK ANEURYSMS 4539
SURGICAL TREATMENT OF BASILAR TRUNK ANEURYSMS 4539
CONCLUSION 4545
suggested readings 4545
Chapter 373: Microsurgery of Basilar Apex Aneurysms 4546
BASILAR APEX PROJECT 4546
BASILAR APEX ANEURYSM SURGERY: CLINICAL EXPERIENCE 4546
MICROSURGICAL ANATOMY OF THE INTERPEDUNCULAR CISTERN 4546
SURGICAL STRATEGIES 4547
TIMING OF TREATMENT 4555
TEMPORARY OCCLUSION 4555
COMPLICATION AVOIDANCE 4555
ENDOVASCULAR MANAGEMENT OF BASILAR APEX ANEURYSMS 4555
CONCLUSION 4556
suggested readings 4556
Chapter 374: Endovascular Approaches to Intracranial Aneurysms 4557
Endovascular Approaches to ACoA Aneurysms 4557
Endovascular Approaches to Pericallosal Aneurysms 4558
Endovascular Approaches to PCoA Aneurysms 4558
Endovascular Approaches to Ophthalmic Aneurysms 4559
Approaches to Cavernous Aneurysms 4560
Endovascular Approaches to Aneurysms of the Ica Terminus 4562
Endovascular Approaches to MCA Aneurysms 4562
Endovascular Approaches to Aneurysms of the Distal Vertebral Artery (V4) 4564
Endovascular Approaches to Pica Aneurysms 4566
Endovascular Approaches to Basilar Trunk Aneurysms 4566
Endovascular Approaches to Superior Cerebellar Artery Aneurysms 4567
Endovascular Approaches to Basilar Apex Aneurysms 4568
Endovascular Approaches to PCA Aneurysms 4572
Conclusion 4575
suggested readings 4575
Chapter 375: Endovascular Coiling of Intracranial Aneurysms: 4576
The Rise of Endovascular Technique 4576
Conclusion 4580
suggested readings 4580
Chapter 376: Endovascular Stenting of Intracranial Aneurysms 4581
OVERVIEW: CONCEPTUAL EVOLUTION AND HISTORY OF INTRACRANIAL STENTING FOR ANEURYSMS 4581
COMMERCIALLY AVAILABLE DEVICES 4585
IMAGING FOLLOW-UP 4595
FUTURE OF STENTING OF ANEURYSMS: FLOW DIVERSION AND DEFINITIVE PARENT-VESSEL RECONSTRUCTION 4595
Acknowledgment 4600
suggested readings 4600
Chapter 377: Endovascular Hunterian Ligation 4601
History 4601
Indications 4601
Approaches to the Occlusion of Specific Cerebral Vessels 4602
Cerebral Reserve Testing 4602
Complications 4604
Conclusion 4604
suggested readings 4604
Chapter 378: Microsurgical Management of Giant Intracranial Aneurysms 4605
Historical Considerations 4605
Epidemiology and incidence 4605
Pathophysiology 4605
Clinical Findings 4606
Diagnosis 4607
Management 4607
Conclusion 4622
Acknowledgment 4623
suggested readings 4623
Chapter 379: Infectious Intracranial Aneurysms 4624
Terminology 4624
Epidemiology 4624
Pathophysiology 4625
Microbiology 4625
Clinical Findings 4625
Natural History 4626
Diagnostic Evaluation 4626
Treatment 4627
Outcomes 4628
Conclusion 4629
suggested readings 4629
Chapter 380: Revascularization Techniques for Complex Aneurysms and Skull Base Tumors 4630
Revascularization For The Treatment Of Aneurysms 4630
Revascularization For The Treatment Of Skull Base Tumors 4630
When Is The Collateral Circulation Inadequate And Bypass Necessary? 4631
Surgical Technique 4632
Outcomes 4641
Conclusion 4641
suggested readings 4642
Chapter 381: Multimodality Management of Complex Cerebrovascular Lesions 4643
PATIENTS WITH CEREBRAL ANEURYSMS 4643
PATIENTS WITH LARGE ARTERIOVENOUS MALFORMATIONS 4646
PATIENTS WITH ANEURYSMS AND ARTERIOVENOUS MALFORMATIONS 4647
PATIENTS WITH DURAL ARTERIOVENOUS FISTULAS 4649
CONCLUSION 4650
suggested readings 4651
Chapter 382: Traumatic Cerebral Aneurysms Secondary to Penetrating Intracranial Injuries 4652
Pathology 4652
Clinical Findings 4653
Diagnosis 4654
Treatment 4654
Conclusion 4655
suggested readings 4655
Chapter 383: Pathobiology of True Arteriovenous Malformations 4656
ARTERIOVENOUS MALFORMATIONS 4656
VENOUS ANGIOMA 4658
CAVERNOUS MALFORMATION 4658
CAPILLARY TELANGIECTASIA 4659
MIXED LESIONS: TRUE ARTERIOVENOUS MALFORMATIONS WITH OTHER VASCULAR MALFORMATIONS 4661
GENETICS OF ARTERIOVENOUS MALFORMATIONS 4661
THE BIOLOGY OF VASCULOGENESIS AND ANGIOGENESIS 4664
CONCLUSION 4667
Acknowledgment 4667
suggested readings 4667
Chapter 384: The Natural History of Intracranial Vascular Malformations 4668
Arteriovenous Malformation 4668
Arteriovenous Malformations And Aneurysms 4673
Cavernous Malformation 4675
Dural Arteriovenous Fistula 4679
Venous Malformation 4682
Capillary Telangiectasia 4684
suggested readings 4684
Chapter 385: Therapeutic Decision Making 4686
MANAGEMENT BY NONINTERVENTION 4686
MANAGEMENT BY SURGERY 4688
MANAGEMENT BY FOCUSED IRRADIATION 4693
MANAGEMENT BY EMBOLIZATION 4694
MANAGEMENT BY COMBINED THERAPIES 4695
INDIVIDUALIZING TREATMENT REGIMENS 4695
PERIOPERATIVE DECISION MAKING 4695
suggested readings 4700
Chapter 386: Adjuvant Endovascular Management of Brain Arteriovenous Malformations 4701
Clinical Significance and Treatment Plan 4701
Patient Selection 4701
Clinical Analysis 4701
Treatment Goals 4710
Preoperative Embolization 4710
Embolization And Radiosurgery 4710
Techniques Of Embolization 4712
Embolic Agents 4712
Postoperative Monitoring And Follow-Up 4713
Outcomes And Complications 4713
Conclusion 4714
suggested readings 4716
Chapter 387: Endovascular Management of Arteriovenous Malformations for Cure 4717
INTERVENTIONAL PLANNING 4717
TECHNICAL ASPECTS 4719
EMBOLIC AGENTS 4719
RISK ASSESSMENT 4720
OUTCOMES 4721
RECANALIZATION 4722
CONCLUSION 4722
suggested readings 4723
Chapter 388: Microsurgical Management of Arteriovenous Malformations 4724
GENERAL CONSIDERATIONS 4724
MICROSURGICAL TREATMENT 4725
OUTCOME 4737
CONCLUSION 4739
suggested readings 4739
Chapter 389: Surgical and Radiosurgical Management of Giant Arteriovenous Malformations 4740
Clinical Findings/Preoperative Evaluation 4740
Hemodynamics Of Giant Arteriovenous Malformations 4741
Evaluation 4741
Treatment 4742
Special Perioperative Equipment/Techniques 4745
Surgical Outcome 4746
Complications 4746
Conclusion 4752
Acknowledgment 4752
suggested readings 4752
Chapter 390: Carotid-Cavernous Fistulas 4753
ANATOMY 4753
CLINICAL FINDINGS 4753
IMAGING STUDIES 4754
DIRECT FISTULAS 4754
INDIRECT FISTULAS 4756
CONCLUSION 4757
suggested readings 4757
Chapter 391: Treatment of Other Intracranial Dural Arteriovenous Fistulas 4759
CLASSIFICATION 4759
CLINICAL MANIFESTATIONS 4759
NATURAL HISTORY 4759
TREATMENT 4759
CLINICAL AND ANGIOGRAPHIC FEATURES AND TREATMENT OF DURAL ARTERIOVENOUS FISTULAS ACCORDING TO LOCATION 4763
OUTCOME 4764
CONCLUSION 4765
suggested readings 4765
Chapter 392: Natural History of Cavernous Malformations 4766
Epidemiology 4766
Clinical Findings 4766
Natural History 4770
Conclusion 4777
suggested readings 4777
Chapter 393: Genetics of Cerebral Cavernous Malformations 4779
Molecular Genetic Approaches 4779
Genetics of Cerebral Cavernous Malformations 4780
Clinical Genetics 4784
Conclusion and Future Directions 4785
suggested readings 4785
Chapter 394: Supratentorial and Infratentorial Cavernous Malformations 4786
Epidemiology and Clinical Manifestations 4786
Imaging 4786
Natural History 4786
Treatment Options 4788
Operative Procedure 4788
Surgical approaches 4790
Clinical Outcomes 4796
Conclusion 4797
suggested readings 4797
Chapter 395: Classification of Spinal Arteriovenous Lesions: 4798
Historical Perspective and Previous Classifications 4798
Proposed Classification System 4799
Conclusion 4803
suggested readings 4803
Chapter 396: Endovascular Treatment of Spinal Vascular Malformations 4805
Vascular Anatomy 4805
Diagnostic Imaging of Spinal Vascular Malformations 4805
Principles of Endovascular Therapy 4806
Endovascular Treatment of Spinal Arteriovenous Malformations 4807
Endovascular Treatment of Spinal Arteriovenous Fistulas 4809
Complications 4811
Conclusion 4817
Acknowledgment 4818
suggested readings 4818
Chapter 397: Spinal Vascular Malformations 4819
History and Classification 4819
Vascular anatomy and Pathogenesis 4820
Etiology, Pathophysiology, Clinical Findings, and Natural History 4823
Diagnostic Imaging 4835
Treatment and Outcome 4842
Conclusion 4851
suggested readings 4854
Chapter 398: Pregnancy and the Vascular Lesion 4855
Stroke 4855
Aneurysmal Subarachnoid Hemorrhage 4856
Arteriovenous Malformations 4857
Other Vascular Lesions 4857
suggested readings 4857
Index 4859