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Advances in Laminitis, Part II, An Issue of Veterinary Clinics: Equine Practice - E-Book

Advances in Laminitis, Part II, An Issue of Veterinary Clinics: Equine Practice - E-Book

Christopher C. Pollitt

(2010)

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Book Details

Abstract

This issue is the second half of the topic on laminitis, one of the most challenging diseases for the equine clinician to treat. Articles include endocrinopathic metabolism, equine metabolic syndrome, hyperinsulinemic laminitis, pasture associated laminitis, corticosteroid associated laminitis, supporting limb laminitis, pharmacological basis for the treatment of endocrinopathic laminitis, pain management of chronic laminitis, chronic laminitis: larval therapy, chronic laminitis foot support: support shoes, pasture management, diet and exercise, herd management, and much more!

Table of Contents

Section Title Page Action Price
Front Cover Cover
Contributors iii
Contents vii
FORTHCOMING ISSUES xii
RECENT ISSUES xii
Preface xiii
REFERENCES xv
Chapter 1. Endocrinopathic Laminitis 233
GLUCOCORTICOID-ASSOCIATED LAMINITIS 233
INSULIN-ASSOCIATED LAMINITIS 234
EPIDEMIOLOGY 235
REFERENCES 235
Chapter 2. Laminitis and the Equine Metabolic Syndrome 239
DEFINING THE EQUINE METABOLIC SYNDROME: A WORK IN PROGRESS 240
HERITABILITY OF EQUINE METABOLIC SYNDROME 240
RECOGNITION AND OBJECTIVE MEASUREMENT OF OBESITY IN HORSES 241
PATHOPHYSIOLOGY 241
DIETARY FACTORS PRECIPITATE AND AGGRAVATE LAMINITIS IN EQUINE METABOLIC SYNDROME 243
PREVENTION, MANAGEMENT, AND TREATMENT RECOMMENDATIONS FOR EQUINE METABOLIC SYNDROME 246
DIETARY STRATEGIES TO MINIMIZE THE RISK FOR LAMINITIS IN HORSES WITH EQUINE METABOLIC SYNDROME 248
WHAT CAN THE VETERINARIAN DO TO HELP OWNERS OF HORSES WITH EQUINE METABOLIC SYNDROME? 251
REFERENCES 251
Chapter 3. Hyperinsulinemic Laminitis 257
NEW MODEL FOR STUDYING HYPERINSULINEMIC LAMINITIS 258
INSULIN-MEDIATED LAMELLAR LESION 259
PATHOPHYSIOLOGY OF HYPERINSULINEMIC LAMINITIS 259
SUMMARY 261
REFERENCES 262
Chapter 4. Current Concepts on the Pathophysiology of Pasture-Associated Laminitis 265
EPIDEMIOLOGY AND RISK FACTORS 266
PATHOPHYSIOLOGY OF PASTURE LAMINITIS 267
SUMMARY 273
REFERENCES 273
Chapter 5. Corticosteroid-Associated Laminitis 277
CLINICAL EVIDENCE: CIRCUMSTANCES WHERE GLUCOCORTICOIDS MIGHT CAUSE LAMINITIS 277
POSSIBLE MECHANISMS INVOLVED IN GLUCOCORTICOID-ASSOCIATED LAMINITIS 279
SUMMARY 282
REFERENCES 282
Chapter 6. Supporting Limb Laminitis 287
LAMINITIS AS A CONSEQUENCE OF MECHANICAL OVERLOAD: MECHANISMS 289
LAMINITIS AS A SYSTEMIC DISEASE: THE POSSIBLE CONTRIBUTIONS OF SYSTEMIC INFLAMMATION AND INSULIN-MEDIATED MECHANISMS TO SLL 298
SUMMARY 299
ACKNOWLEDGMENTS 299
REFERENCES 299
Chapter 7. The Pharmacologic Basis for the Treatment of Endocrinopathic Laminitis 303
PHARMACOLOGIC TREATMENT OF PPID 304
PHARMACOLOGIC TREATMENT OF EMS 306
SUMMARY 309
REFERENCES 309
Chapter 8. Neuropathic Pain Management in Chronic Laminitis 315
MECHANISMS OF PAIN IN LAMINITIS 315
GRADING PAIN IN LAMINITIS 319
PAIN THERAPY IN LAMINITIS: MODIFYING THE APPROACH 320
CONVENTIONAL SYSTEMIC ANALGESICS 322
SYSTEMIC LIDOCAINE 326
NONCONVENTIONAL SYSTEMIC ANALGESICS WITH ANTIHYPERALGESIC AND ANTINEUROPATHIC PAIN ACTIVITY 327
CALCIUM CHANNEL α2δ-LIGANDS (GABAPENTIN, PREGABALIN) 327
KETAMINE 328
LOCO-REGIONAL ANESTHESIA AND ANALGESIA 328
SUMMARY 329
REFERENCES 330
Chapter 9. Digital Venography in Horses and Its Clinical Application in Europe 339
HISTORY OF DIGITAL VENOGRAPHY 339
COMPARING DIGITAL BLOOD FLOW DIAGNOSTIC TECHNIQUES 340
PODIATRY RADIOGRAPHIC TECHNIQUE AND HOW IT DIFFERS FROM TRADITIONAL ORTHOPEDIC PROCEDURES 341
DIGITAL VENOGRAPHY PROCEDURE IN THE STANDING HORSE 341
ARTIFACTS 345
VENOGRAPHIC STUDIES OF THE QUASISTATIC BIOMECHANICS OF THE FOOT 346
THE SAFETY VALVE OF THE FOOT-HEART PUMP AND THE FIVE-HEARTS THEORY 349
CLINICAL RELEVANCE OF VENOGRAPHY IN LAMINITIS AND OTHER SOFT TISSUE DIGITAL PATHOLOGIES 350
LAMINITIS PHASES: CHRONOLOGY AND SEVERITY SCORE 351
CONSIDERATIONS AND CONCLUSIONS 355
SUMMARY 356
ACKNOWLEDGMENTS 357
REFERENCES 357
Chapter 10. Pasture Management to Minimize the Risk of Equine Laminitis 361
FACTORS AFFECTING NSC CONTENT OF GRASS 361
MANAGEMENT TO MINIMIZE NSC CONTENT 365
SUMMARY 368
REFERENCES 368
Chapter 11. Endocrinopathic Laminitis: Reducing the Risk Through Diet and Exercise 371
REDUCING THE RISK 371
EXERCISE 372
DIET 372
SUMMARY 375
REFERENCES 376
Chapter 12. Field Treatment and Management of Endocrinopathic Laminitis in Horses and Ponies 379
ADRENOCORTICOTROPIC HORMONE 380
INSULIN 380
DRUG THERAPY 386
SUMMARY 388
REFERENCES 389
Chapter 13. Clinical Presentation, Diagnosis, and Prognosis of Chronic Laminitis in Europe 391
CLINICAL PRESENTATION AND DIAGNOSIS 391
NORMALITY 393
MEASUREMENT OF FOUNDER DISTANCE 394
PROGNOSIS: ALL CASES 395
PROGNOSIS DEPENDS ON THE TIMING AND TYPE OF TREATMENTS USED 398
REESTABLISHING THE NORMAL ANGULATION OF THE DORSAL CORONARY AND TERMINAL PAPILLAE 398
OTHER FACTORS THAT INFLUENCE PROGNOSIS OF ACUTE FOUNDER OR SINKER CASES 401
PROGNOSIS IN CASES OF CHRONIC RELATIVE DISTAL PHALANGEAL DISPLACEMENT (CHRONIC FOUNDER) 401
SUMMARY 404
REFERENCES 404
Chapter 14. Farriery for Chronic Laminitis 407
CHRONIC LAMINITIS 407
PATHOPHYSIOLOGY OF CHRONIC LAMINITIS 408
CLINICAL EVALUATION 410
RADIOLOGY 411
THERAPEUTIC FARRIERY 413
GENERAL PRINCIPLES FOR FARRIERY 415
TYPES OF SHOES 417
FOLLOW-UP FARRIERY 419
MEDIOLATERAL ROTATION OF THE DISTAL PHALANX 420
CASTS 421
SURGICAL TREATMENT 421
REFERENCES 423
Chapter 15. Chronic Laminitis: Foot Management 425
THE ROLE OF LOADING AND PRESSURE ON DAMAGED LAMINAE 425
EVALUATING DAMAGE TO THE LAMINITIC FOOT 426
THE STAGES OF LAMINITIS 426
TREATMENT OF THE ACUTE LAMINITIC FOOT 427
HEEL ELEVATION IN THE ACUTE PHASE 428
RESTRUCTURING THE CHRONIC COMPENSATED (STABLE) FOOT 429
RESTRUCTURING THE CHRONIC UNCOMPENSATED LAMINITIC FOOT 434
DEEP DIGITAL FLEXOR TENOTOMY AND REALIGNMENT SHOEING TECHNIQUE 436
HOOF PREPARATION FOR REALIGNMENT SHOEING 436
DEEP DIGITAL FLEXOR TENOTOMY PROCEDURE 437
PROGNOSIS FOR CASES MANAGED WITH DEEP DIGITAL FLEXOR TENOTOMY AND DEROTATION SHOEING 438
WHEN TO PERFORM A TENOTOMY 439
PRESERVATION OF THE CORONARY BAND 441
CORONARY BAND GROOVING 441
PROXIMAL HOOF WALL RESECTION 442
MEDIAL OR LATERAL SINKING (DISPLACEMENT) 443
INFECTIONS IN THE FOUNDERED FOOT 444
SUMMARY 445
REFERENCES 445
Chapter 16. Maggot Debridement Therapy for Laminitis 447
SUMMARY 450
REFERENCES 450
Chapter 17. First Aid for the Laminitic Foot: Therapeutic and Mechanical Support 451
SUPPORTING THE HOOF 452
THE PHYSICAL EXAMINATION 452
GOALS OF MECHANICAL SUPPORT 453
TO SHOE, OR NOT TO SHOE? 453
FOAM PADS 453
LILY PADS 454
MODIFIED ULTIMATE CUFF 454
IMPRESSION MATERIAL 454
HEART BAR SHOES 455
GLUE-ON SHOES 456
CLOGS 456
FOOT CASTS 456
REDUCING THE WEIGHT OF THE HORSE 457
BEDDING/CONFINEMENT 457
SUMMARY 457
REFERENCES 458
Index 459