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Myocardial Infarction: A Companion to Braunwald's Heart Disease E-Book

Myocardial Infarction: A Companion to Braunwald's Heart Disease E-Book

David A Morrow

(2016)

Additional Information

Book Details

Abstract

Get the tools and knowledge you need for effective diagnosis, evaluation, and management of patients with acute myocardial infarction. Myocardial Infarction: A Companion to Braunwald’s Heart Disease, by David A. Morrow, MD, is a comprehensive, hands-on resource that provides practical guidance from a name you trust. Concise and easy to use, this text explores the most recent tools for diagnosis and therapeutic decision-making, as well as the full range of available management strategies, providing outcomes data for each strategy. Myocardial Infarction also includes regular updates with late-breaking clinical trials, reviews of important new articles, and the latest guidance on clinical practice, all selected and masterfully edited by Dr. Eugene Braunwald.

  • Provides thorough discussions of ECG, established and emerging biochemical markers, angiography, nuclear cardiology, echocardiography, and cardiac MRI and CT.
  • Features an extensive treatment section that covers the latest drugs and most recent clinical trials of antiplatelet therapy, coronary revascularization, gene therapy, and approaches to reperfusion injury and ventricular remodeling.
  • Discusses special considerations for the evaluation of acute coronary syndromes in the emergency department, and use of advanced technologies in cardiac critical care.
  • Covers key topics such as in-hospital complications, cardiogenic shock, transitions to post-discharge care, and cardiac rehabilitation.
  • Includes Clinical Practice/Controversy chapters that highlight management-focused, practical topics covering expert approaches for areas of uncertainty.
  • Offers guidance on the management of special populations.
  • Consult this title on your favorite e-reader for access to regularly added update content, to conduct rapid searches, and adjust font sizes for optimal readability.

Table of Contents

Section Title Page Action Price
Front Cover Cover
IFC ES1
MYOCARDIAL INFARCTION i
MYOCARDIAL INFARCTION: A Companion to Braunwald’s Heart Disease iii
Copyright iv
Dedication v
Contributors vii
Foreword xiii
Preface xv
Contents xvii
Video Contents xix
Braunwald’s Heart Disease Family of Books xxi
BRAUNWALD’S HEART DISEASE COMPANIONS xxi
BRAUNWALD’S HEART DISEASE REVIEW AND ASSESSMENT xxiii
BRAUNWALD’S HEART DISEASE IMAGING COMPANIONS xxiii
COMING SOON! xxiii
I - Epidemiology and Pathophysiology 1
1 - CLASSIFICATION AND DIAGNOSIS OF ACUTE CORONARY SYNDROMES\r 1
INTRODUCTION 1
SPECTRUM OF UNSTABLE ISCHEMIC HEART DISEASE 1
Unstable Angina: A Historical Perspective 2
Diagnosis of Myocardial Infarction 3
Biomarkers of Myocyte Necrosis 3
CLASSICATION OF MYOCARDIAL INFARCTION 5
Pathological Description 5
Clinical Classification 5
Electrocardiography 5
Universal Definition of Myocardial Infarction Classification of Myocardial Infarction Type 6
Spontaneous Myocardial Infarction (Type 1) 6
Myocardial Infarction Secondary to an Ischemic Imbalance (Type 2) 6
Cardiac Death Caused by Myocardial Infarction (Type 3) 7
Myocardial Infarction Associated with Revascularization Procedures (Types 4 and 5) 8
Classification by Myocardial Infarction Size 8
Myocardial Infarction in the Setting of Nonobstructive Coronary Arteries 9
SUMMARY 9
Classic References 10
References 10
2 - GLOBAL EVOLVING EPIDEMIOLOGY, NATURAL HISTORY, AND TREATMENT TRENDS OF MYOCARDIAL INFARCTION 11
INTRODUCTION 11
Data Sources 11
MORTALITY AND MORBIDITY DUE TO MYOCARDIAL INFARCTION 11
VARIATION IN THE GLOBAL BURDEN OF ISCHEMIC HEART DISEASE 14
High-Income Countries 14
Low- and Middle-Income Countries 14
East Asia and the Pacific 14
Central and Eastern Europe and Central Asia 14
Latin America and the Caribbean 14
North Africa and the Middle East 14
South Asia 14
Sub-Saharan Africa 15
ECONOMIC BURDEN OF ISCHEMIC HEART DISEASE 15
INTERVENTIONS 15
Acute Management 15
Cost-Effectiveness of Acute Management Strategies 16
Secondary Prevention of Myocardial Infarction 17
Access to Essential Medications for Secondary Prevention of Cardiovascular Disease 18
Medication Adherence 19
Smoking Cessation 19
Cost-Effective Interventions 19
SUMMARY AND FUTURE DIRECTIONS 20
References 20
3 - NEW AND EMERGING INSIGHTS INTO THE PATHOBIOLOGY OF ACUTE MYOCARDIAL INFARCTION 22
MULTIFACTORIAL CAUSES 22
MECHANISMS OF PLAQUE FORMATION 22
Lesion Classification 23
Lipoprotein Retention 23
Inflammation 24
Foam Cells 25
Fatty Streaks 25
Necrosis 25
Plaque Angiogenesis and Intraplaque Hemorrhage 26
Fibrosis 26
Calcification 26
Arterial Remodeling 27
CLINICAL MANIFESTATIONS OF ATHEROSCLEROSIS 27
Mechanisms of Plaque Rupture 29
Thin-Cap Fibroatheroma 29
Mechanisms of Plaque Erosion 29
Plaque Thrombogenicity and Thrombosis 30
Healed Plaques and Incorporated Thrombi 30
Plaque Regression 30
PLAQUE BURDEN 30
PLAQUE ACTIVITY 30
PLAQUE VULNERABILITY 31
RUPTURE-PRONE PLAQUES 31
Necrotic Core 31
Plaque Size and Severity of Stenosis 31
Other Associated Features 32
Predictive Value of Vulnerable Plaque Features 32
PERSPECTIVES FOR PREVENTION 32
References 32
4 - MECHANISMS OF MYOCARDIAL ISCHEMIC INJURY, HEALING, AND REMODELING\r 34
Historical Perspective 34
The Concept of Mutability of Myocardial Infarction: Oxygen Supply and Demand Balance, Reperfusion, and Remodeling 34
PATHOLOGICAL FINDINGS DURING THE EVOLUTION AND HEALING OF MYOCARDIAL INFARCTION 35
THE CURRENT ERA: THE ROLE OF INFLAMMATION IN THE EVOLUTION AND HEALING OF MYOCARDIAL INFARCTION 36
Inflammatory Response to Myocardial Infarction 37
Inflammatory Cells and Infarct Healing 37
Role of Specific Leukocyte Classes 37
Monocyte Origins in Myocardial Infarction 38
“Cardiosplenic” Axis in Humans 39
Areas of Ongoing Investigation 40
SUMMARY 41
ACKNOWLEDGEMENTS 41
Classic References 41
References 41
II - Initial Evaluation andRisk Stratification 43
5 - PREHOSPITAL ASSESSMENT AND SYSTEMS OF CARE 43
CASE VIGNETTE 43
INTRODUCTION 43
PREHOSPITAL EVALUATION 44
Evolution of Emergency Medical Services 44
Prehospital Systems 45
Integrated Emergency Medical Systems 45
SYSTEMS OF CARE IN PRACTICE 46
ST-Elevation Myocardial Infarction Systems of Care: The European Experience 46
ST-Elevation Myocardial Infarction Systems of Care: The United States 47
Professional Society Guidelines 48
UNITED STATES CARDIOVASCULAR SYSTEMS OF CARE: THE CURRENT LANDSCAPE 49
The Ideal System of Care Network 49
Systems of Care: Successes and Advantages 51
Systems of Care: Current Challenges, Gaps, and Barriers 51
Systems Delays 51
Resources for Staffing, Research, and Quality Improvement 51
Public Policy and Consideration of Need 51
Other Issues: In-Hospital ST-Elevation Myocardial Infarction and False Activations 52
FUTURE DIRECTIONS AND STRATEGIES FOR IMPROVEMENT 52
References 54
6 - Clinical Practice/Controversy:CLINICAL APPROACH TO SUSPECTED ACUTE MYOCARDIAL INFARCTION 55
INTRODUCTION 55
GOALS OF THE INITIAL ASSESSMENT OF SUSPECTED MYOCARDIAL INFARCTION 55
CAUSES OF CHEST DISCOMFORT 55
Myocardial Ischemia 55
Characteristics of Myocardial Ischemia 57
Nonischemic Causes of Chest Discomfort 59
Cardiopulmonary Causes 59
Pericardial and Myocardial Diseases 59
Acute Aortic Syndromes 59
Pulmonary Embolism 59
Other Pulmonary Causes 59
Musculoskeletal 59
Panic Disorder 59
CLINICAL APPROACH TO THE PATIENT 59
History 59
Quality of the Pain 59
Location of the Discomfort 60
Pattern 60
Provoking and Alleviating Factors 60
Associated Symptoms 60
Medical History and Review of Systems 61
Physical Examination 61
General 61
Cardiopulmonary 61
Vascular 62
Other Elements of the Examination 62
Electrocardiography 62
Cardiac Biomarkers 62
Chest Radiography 63
Formulating a Clinical Probability of Myocardial Infarction 63
DECISIONS REGARDING ADDITIONAL TESTING 64
Invasive Coronary Evaluation 64
Provocative Testing for Ischemia 64
Other Noninvasive Studies 64
CRITICAL PATHWAYS 64
SUMMARY 64
References 65
7 - Optimal Use of Cardiac Troponin in Patients with Chest Discomfort 66
INTRODUCTION 66
BASIC CONSIDERATIONS ABOUT CARDIAC TROPONIN FOR CLINICIANS 66
Specificity and Interferences 66
Interfering Proteins 66
Impact of Blood Sampling 66
Sensitivity 67
The 99th Percentile Reference Limit 67
Advanced Considerations 67
Sex-Specific Cutoffs 68
Definition of a Changing Pattern of Cardiac Troponin Values 69
Challenges in Defining a Change Criterion 69
Sampling and Reporting 70
THE IMPORTANCE OF CLINICAL CONTEXT 70
A Bayesian Approach to the Chest Pain Patient 70
Rapid Rule-Out Protocols Using Troponin in Low-Risk Patients 71
Standard Troponin Assays 71
High-Sensitivity Assays for Troponin 71
Caveats for Clinical Application of Rapid Rule-Out Strategies 72
High-Risk Patients 72
Contemporary Assays 72
High-Sensitivity Assays 72
Patients with Intermediate Risk 73
Special Subsets with Possible Myocardial Infarction 73
Women 73
Renal Failure 73
Older Patients 73
TYPE 1 VERSUS TYPE 2 ACUTE MYOCARDIAL INFARCTION AND CARDIAC INJURY 73
SITUATIONS THAT MAY BE CONFUSED WITH MYOCARDIAL INFARCTION 74
Pulmonary Embolism 74
Aortic Dissection 74
Carbon Monoxide Poisoning 74
Acute Heart Failure 74
Critical Illness 74
Management 75
SUMMARY 75
References 75
8 - OTHER BIOMARKERS AND THE EVALUATION OF PATIENTS WITH SUSPECTED MYOCARDIAL ISCHEMIA 77
INTRODUCTION 77
RATIONAL SEARCH FOR CARDIOVASCULAR BIOMARKERS 77
DIAGNOSTIC APPLICATIONS 77
Biomarkers Indicative of Ischemia 77
Copeptin 77
Other Putative Biomarkers of Ischemia 79
Biomarkers of Necrosis 79
General Considerations 79
Heart-Type Fatty Acid-Binding Protein 79
Biomarkers of Plaque Instability 80
Myeloperoxidase 80
Angiogenic Factors 81
PROGNOSTIC APPLICATIONS 81
Biomarkers of Hemodynamic Stress 81
Natriuretic Peptides 81
Novel Biomarkers of Hemodynamic Stress 82
ST2 82
Mid-Region Pro-Adrenomedullin 84
Inflammatory Biomarkers and Prognosis 84
Growth-Differentiation Factor-15 85
Prognostic Markers and Clinical Decision-Making 85
FORWARD OUTLOOK 86
MicroRNA 86
SUMMARY 87
References 87
9 - CARDIAC IMAGING FOR PATIENTS WITH ACUTE CHEST PAIN IN THE EMERGENCY DEPARTMENT 89
INTRODUCTION 89
Rationale for Functional and Anatomic Assessment 89
Anatomic Assessment of Coronary Artery Disease 89
Functional Imaging 89
Rest Radionuclide Myocardial Perfusion Imaging 90
Rest-Only Myocardial Perfusion Imaging in Suspected Acute Coronary Syndromes 90
Randomized Trials of Myocardial Perfusion Imaging in the Emergency Department 90
Appropriate Use Criteria, Guidelines, and Clinical Role 91
Resting Echocardiography 91
Echocardiography in Acute Coronary Syndrome 91
Echocardiographic Imaging with Contrast 91
III - Treatment 139
13 - MANAGEMENT PRINCIPLES IN MYOCARDIAL INFARCTION 139
INTRODUCTION 139
PREHOSPITAL MANAGEMENT 140
Early Recognition of Myocardial Infarction 140
Cardiac Arrest 141
Systems Development for Rapid Reperfusion 141
EMERGENCY IN-HOSPITAL MANAGEMENT 141
Rapid Reperfusion 141
Fibrinolysis 142
Pathways of Care: ST-Elevation Myocardial Infarction 142
Pathways of Care: Non–ST-Elevation Myocardial Infarction 142
Other Medical Therapy at Presentation 143
Analgesics 143
Nitrates 144
Oxygen 144
RECURRENT ISCHEMIA 144
Initial Risk Assessment 145
Thrombotic Complications 146
Antiplatelet Therapies 146
Aspirin 147
P2Y12 Receptor Inhibition 147
Glycoprotein IIb/IIIa Inhibitors 147
Anticoagulant Therapy 147
Unfractionated Heparin 147
Low–Molecular-Weight Heparins 147
Factor Xa Inhibitor 147
Direct Thrombin Inhibitors 148
Other Medical Therapies to Reduce Ischemia 148
Nitrates 148
Calcium Channel Blockers 148
Beta-Adrenergic Blockers 148
Coronary Revascularization 148
Identification of Occult Ischemia 149
Invasive Detection of Occult Ischemia 149
Noninvasive Detection of Occult Ischemia 149
ELECTRICAL AND MECHANICAL COMPLICATIONS 149
Arrhythmias 149
Mechanical Complications 149
ADJUNCTIVE THERAPIES IN THE ACUTE PHASE 150
Lipid-Lowering Agents 150
Management of Hyperglycemia 150
SECONDARY PREVENTION AND REHABILITATION 150
Duration of Therapy 150
Lifestyle Changes and Cardiac Rehabilitation 151
FUTURE PERSPECTIVES 151
References 152
14 - Clinical Practice/Controversy: SELECTION OF REPERFUSION THERAPY AND TRANSFER STRATEGIES FOR PATIENTS WITH ST-ELEVATION MYOCARDIAL INFARCTION 154
CASE PRESENTATION 154
INTRODUCTION 154
ELEMENTS THAT INFLUENCE REPERFUSION DELAY FOR PRIMARY PERCUTANEOUS CORONARY INTERVENTION IN TRANSFER PATIENTS 155
Patient Delay 155
Prehospital System Delay 155
Interhospital System Delay 156
Door-in-Door-out Time 156
Mode of Transfer 156
Primary Percutaneous Coronary Intervention Center Logistics Delay 156
CHOICE OF REPERFUSION STRATEGY IN TRANSFER PATIENTS 157
Influence of Index ST-Elevation Myocardial Infarction Risk 157
Influence of the Risk of Fibrinolysis 158
Influence of Ischemic Time 159
Early Presenters 159
Late Presenters 160
Influence of Transfer Time to Primary Percutaneous Coronary Intervention versus Fibrinolysis 160
Percutaneous Coronary Intervention–Related Delay 161
Summary of Considerations for Selection of Reperfusion Therapy 161
KEY ELEMENTS OF A SUCCESSFUL PHARMACOINVASIVE APPROACH 162
Prehospital Fibrinolysis 162
Rescue Intervention 162
Routine Mechanical Co-Intervention 163
Transfer After Fibrinolysis 163
ADJUNCTIVE THERAPIES TO REPERFUSION IN TRANSFER PATIENTS 164
ST-ELEVATION MYOCARDIAL INFARCTION NETWORKS 164
WHAT DO THE GUIDELINES RECOMMEND? 164
RECOMMENDED APPROACH TO ST-ELEVATION MYOCARDIAL INFARCTION CARE USING A DUAL REPERFUSION STRATEGY 165
RETURN TO THE CASE 165
FUTURE PERSPECTIVES 165
References 167
15 - FIBRINOLYTIC THERAPY FOR PATIENTS WITH ST-ELEVATION MYOCARDIAL INFARCTION\r 169
INTRODUCTION 169
A BRIEF HISTORICAL OVERVIEW 169
Role of Fibrinolysis in Contemporary Care 169
HOW DO FIBRINOLYTIC AGENTS WORK? 171
SPECIFIC FIBRINOLYTIC AGENTS 171
Streptokinase 171
Clinical Trials of Streptokinase 172
Tissue-Type Plasminogen Activator 172
Clinical Trials of Tissue-Plasminogen Activator 173
Reteplase 173
Clinical Trials of Reteplase 173
Tenecteplase 174
Clinical Trials of Tenecteplase 174
Lanoteplase 174
Fibrinolytics of Historical Interest 175
Staphylokinase 175
Saruplase 175
Amediplase 175
CLINICAL USE, INDICATIONS, AND CONTRAINDICATIONS FOR FIBRINOLYTIC THERAPY 176
Indications for Fibrinolytic Therapy 176
Contraindications to Fibrinolysis 176
ASSESSMENT OF REPERFUSION 176
Concomitant Therapies 176
Anticoagulation with Fibrinolysis 177
Unfractionated Heparin 177
Low–Molecular-Weight Heparins and Pentasaccharides 177
Direct Thrombin Inhibitors 177
Antiplatelet Agents with Fibrinolysis 177
Adenosine Diphosphate Receptor Antagonists 178
Glycoprotein IIb/IIIa Antagonists 178
PREHOSPITAL FIBRINOLYSIS 178
SUMMARY 179
Classic References 179
References 179
16 - REVASCULARIZATION IN NON–ST-ELEVATION ACUTE CORONARY SYNDROME: FOR WHOM, WHEN, AND HOW?\r 180
INTRODUCTION 180
CORONARY ANGIOGRAPHY 180
Identification of the Culprit Lesion 180
ROUTINE INVASIVE VERSUS SELECTIVE INVASIVE MANAGEMENT 181
Meta-Analyses 182
Long-Term Outcomes 183
Patient Selection 183
TIMING OF REVASCULARIZATION 184
Candidates for Immediate Invasive Evaluation 184
Randomized Trials 185
Professional Guidelines 185
REVASCULARIZATION IN SUBSETS OF PATIENTS WITH NON–ST-ELEVATION ACUTE CORONARY SYNDROME 186
Chronic Kidney Disease 186
Elderly Patients 187
Gender and Selection of Invasive Treatment 187
REVASCULARIZATION STRATEGY: PERCUTANEOUS CORONARY INTERVENTION VERSUS CORONARY ARTERY BYPASS GRAFTING 187
SUMMARY 188
Classic References 188
References 189
17 - APPROACH TO PERCUTANEOUS CORONARY INTERVENTION IN MYOCARDIAL INFARCTION\r 190
TIMING OF PERCUTANEOUS CORONARY INTERVENTION 190
ST-Elevation Myocardial Infarction Strategies for Reducing Time to Treatment 190
Non–ST-Elevation Myocardial Infarction: Timing of Angiography 190
VASCULAR ACCESS 191
Performing Vascular Access 191
Femoral 191
Radial 192
Advantages and Disadvantages of Radial versus Femoral Access 192
Current Evidence: Radial versus Femoral 192
Considerations for Radial Approach in ST-Elevation Myocardial Infarction 193
Vascular Closure Devices: When to Consider Use 193
Management of Vascular Complications 193
INTERVENTIONAL PHARMACOTHERAPY 193
Procedural Sedation 193
Oral Antiplatelet Therapy 194
When to Preload with Oral Adenosine Diphosphate P2Y12 Inhibitors 194
Anticoagulation Strategies 194
Practical Aspects of Monitoring Anticoagulation 194
Current Evidence: Bivalirudin versus Heparin in ST-Elevation Myocardial Infarction 194
Intravenous Antiplatelet Therapy 195
When to Use a Glycoprotein IIb/IIIa Inhibitor? 195
Role for Intravenous Adenosine Diphosphate P2Y12 Inhibitors? 195
Practical Considerations for Patients on Oral Anticoagulation 195
PERCUTANEOUS CORONARY INTERVENTION 195
Rationale for Stenting 195
When Is Balloon Angioplasty Alone Sufficient? 195
ST-Elevation Myocardial Infarction: Direct Stenting versus Predilation 195
Drug-Eluting Stents versus Bare Metal Stents 196
Rationale for Drug-Eluting Stent Development 196
Evidence in Acute Myocardial Infarction 197
Practical Considerations 197
Current Drug-Eluting Stent Platforms 197
Emerging Stent or Balloon Platforms 197
ADJUNCTIVE DIAGNOSTIC AND THERAPEUTIC DEVICES 198
Practical Use of Intravascular Imaging 198
When to Use Fractional Flow Reserve in Acute Myocardial Infarction? 198
Aspiration Thrombectomy 198
Distal Embolic Protection 198
LESION-SPECIFIC PERCUTANEOUS CORONARY INTERVENTION STRATEGIES 199
Bifurcation Lesions 199
Left Main Coronary Artery 200
Aorto-Ostial Lesions 201
Saphenous Vein Graft 201
Calcified Lesions 201
NONCULPRIT REVASCULARIZATION 201
ST-ELEVATION MYOCARDIAL INFARCTION: WHEN IS CORONARY ARTERY BYPASS GRAFTING NEEDED? 202
PERCUTANEOUS HEMODYNAMIC SUPPORT 202
CORONARY COMPLICATIONS AND MANAGEMENT 203
No-Reflow 203
Coronary Perforation 203
Stent Thrombosis: Intraprocedural and Acute 203
Optimal Duration of Dual Antiplatelet Therapy after Percutaneous Coronary Intervention: Prevention of Stent Thrombosis 204
PRACTICAL HOSPITAL FOLLOW-UP AFTER PRIMARY PERCUTANEOUS CORONARY INTERVENTION 204
Assessment the Day after Percutaneous Coronary Intervention 204
Biomarker Assessment 204
Management of Recurrent Chest Pain 204
Monitoring for Renal Dysfunction 205
When Is It Safe to Discharge Following ST-Elevation Myocardial Infarction Treated with Primary Percutaneous Coronary Interventio... 205
SUMMARY 205
References 205
18 - Clinical Practice/Controversy: SELECTION OF INITIAL ANTICOAGULANT THERAPY 207
Rationale for Anticoagulant Therapy in Acute Coronary Syndrome 207
Containing Thrombus Formation and Propagation 207
OVERVIEW OF AVAILABLE ANTICOAGULANT DRUGS 207
Unfractionated Heparin 208
Low–Molecular-Weight Heparins 208
Fondaparinux 209
Bivalirudin 210
Other Parenteral Anticoagulants 210
Monitoring of Available Anticoagulant Therapy 210
Reversal of Anticoagulant Therapy 211
INITIAL ANTICOAGULANT THERAPY 211
ST-Elevation Myocardial Infarction Treated with Primary Percutaneous Intervention 211
Unfractionated Heparin During Primary Percutaneous Coronary Intervention 211
Enoxaparin versus Unfractionated Heparin for Primary Percutaneous Coronary Intervention 212
Bivalirudin versus Unfractionated Heparin for Primary Percutaneous Coronary Intervention 212
ST-Elevation Myocardial Infarction Treated with Fibrinolysis 213
Unfractionated Heparin as an Adjunct to Fibrinolysis 214
Low–Molecular-Weight Heparin as an Adjunct to Fibrinolysis 214
Fondaparinux as an Adjunct to Fibrinolysis 214
Bivalirudin as an Adjunct to Fibrinolysis 215
Anticoagulant Therapy in Non–ST-Elevation Myocardial Infarction 216
Unfractionated Heparin in Treatment of Non–ST-Elevation Myocardial Infarction 216
Low–Molecular-Weight Heparin in Non–ST-Elevation Myocardial Infarction 218
Pharmacodynamics of Enoxaparin and the Invasive Strategy 218
Fondaparinux in Non–ST-Elevation Myocardial Infarction 218
Direct Thrombin Inhibitors 218
Myocardial Infarction Treated Without Reperfusion Therapy 219
HIGH-RISK POPULATIONS 219
Dose Adjustment in Older Adult Patients 219
Renal Insufficiency 219
Heparin-Induced Thrombocytopenia 219
SUMMARY 219
Classic References 219
References 219
19 - OVERVIEW OF ANTIPLATELET THERAPY FOR MYOCARDIAL INFARCTION 221
INTRODUCTION 221
RATIONALE FOR USE OF ANTIPLATELET THERAPY 221
ANTIPLATELET THERAPIES IN MYOCARDIAL INFARCTION 221
Aspirin 222
P2Y12 Receptor Antagonists 223
Clopidogrel 224
Prasugrel 224
Ticagrelor 227
Cangrelor 227
Glycoprotein IIb/IIIa Inhibitors 229
Protease-Activated Receptor-1 Antagonists 230
PRACTICAL RECOMMENDATIONS AND GUIDELINES 230
Indications and Dosing of Antiplatelet Therapies 230
Clopidogrel 231
Prasugrel 231
Ticagrelor 231
Vorapaxar 232
Cangrelor 232
Timing of Administration of Antiplatelet Therapies 232
General Considerations 232
Timing of Administration of Oral P2Y12 Receptor Antagonists 232
Non–ST-Elevation Myocardial Infarction 232
ST-Elevation Myocardial Infarction 233
Selection of Oral P2Y12 Receptor Antagonist 234
Switching P2Y12 Receptor Antagonists 234
SUMMARY 236
References 237
20 - Clinical Practice/Controversy: INDIVIDUALIZATION OF ANTIPLATELET THERAPY FOR PATIENTS WITH ACUTE CORONARY SYNDROMES\r 239
INTRODUCTION 239
CLOPIDOGREL METABOLISM AND BIOLOGICAL RESPONSE 239
METHODS FOR PLATELET FUNCTION TESTING 239
Vasodilator-Stimulated Phosphoprotein Phosphorylation 240
Multiplate Impedance Aggregometry 240
VerifyNow 241
Light Transmission Aggregometry 241
RATIONALE FOR PLATELET FUNCTION TESTING 241
Prognostic Usefulness of Platelet Function Testing for Thrombotic Events 241
Prognostic Usefulness of Platelet Function Testing for Bleeding Events 242
PLATELET FUNCTION TEST-GUIDED TREATMENT STRATEGY 242
Limitations of Platelet Function Testing 243
Seeking a Therapeutic Window of P2Y12 Inhibition 243
GENETIC TESTS FOR CLOPIDOGREL RESPONSE 244
Genotype Test-Guided Treatment Strategy 245
Genotype and Platelet Function Test-Guided Strategy 245
Genotype Test and Clinically Guided Approach 246
SUMMARY 246
References 248
21 - OLD AND NEW ORAL ANTICOAGULANT THERAPY AFTER MYOCARDIAL INFARCTION 249
INTRODUCTION 249
ROLE OF THROMBIN IN ACUTE CORONARY SYNDROME 249
CURRENT THERAPY AND OUTCOMES FOLLOWING ACUTE CORONARY SYNDROME 250
VITAMIN K ANTAGONIST THERAPY AFTER MYOCARDIAL INFARCTION 251
NEW ORAL ANTICOAGULANT THERAPY IN STABILIZED ACUTE CORONARY SYNDROME 251
Initial Phase II Trials 251
Large Outcome Trials 252
Apixaban 252
Rivaroxaban 252
Specific Patient Populations 254
Synthesis Across Divergent Clinical Trials 254
CURRENT ROLE FOR ORAL ANTICOAGULATION FOR SECONDARY PREVENTION AFTER MYOCARDIAL INFARCTION 255
Patients with Another Indication for Oral Anticoagulant Therapy 255
Triple Oral Antithrombotic Therapy 256
Consensus Practice Guidelines 256
SUMMARY 256
References 257
22 - STEM CELL THERAPY IN PATIENTS WITH MYOCARDIAL INFARCTION\r 259
INTRODUCTION 259
RATIONALE FOR CELL THERAPY IN ACUTE MYOCARDIAL INFARCTION 259
CELL TYPES USED FOR CELL THERAPY IN MYOCARDIAL INFARCTION 259
Embryonic Stem Cells 259
Preclinical Studies 260
Induced Pluripotent Stem Cells 261
Preclinical Studies 261
Barriers to Clinical Development 261
Bone Marrow Mononuclear Cells 261
Clinical Trials 261
REPAIR-AMI 263
Other Randomized Trials of Bone Marrow Mononuclear Cells 263
Reconciling Discordant Results from Clinical Trials 264
Meta-Analyses of Bone Marrow Cell Therapy 264
Selected Bone Marrow Cells 266
Mesenchymal Stromal Cells 267
ROUTES OF CELL DELIVERY 267
Intravenous Delivery 268
Intracoronary Delivery 269
Intramyocardial Injection 269
MECHANISM OF ACTION OF CELL THERAPY 269
UNMET CHALLENGES IN SUCCESSFUL TRANSLATION OF CELL THERAPY AND FUTURE DIRECTIONS 271
Cell Type 271
Cell Dose 271
Cell Retention 272
Timing of Cell Therapy 272
Trial Endpoints 272
SUMMARY 272
References 272
IV - In-Hospital Complications and Assessment 275
23 - RECURRENT ISCHEMIA AND RECURRENT MYOCARDIAL INFARCTION: DETECTION, DIAGNOSIS, AND OUTCOMES\r 275
INTRODUCTION 275
DETECTION OF RECURRENT ISCHEMIA AND INFARCTION 275
Recurrent Ischemia Without Infarction 275
Diagnosis of Recurrent Myocardial Infarction 276
Classification of Recurrent Myocardial Infarction 276
Spontaneous Myocardial Infarction 276
Myocardial Infarction Related to Percutaneous Coronary Intervention (Type 4a) 276
Myocardial Infarction Caused by Stent Thrombosis (Type 4b) 276
Myocardial Infarction with Coronary Artery Bypass Grafting (Myocardial Infarction Type 5) 276
Recurrent Myocardial Infarction and the Electrocardiogram 276
Biomarkers and Recurrent Myocardial Infarction 276
Comparison of Different Definitions of Myocardial Infarction 277
CAUSES AND PREDICTORS OF RECURRENT MYOCARDIAL INFARCTION 277
Causes of Recurrent Myocardial Infarction 277
Predictors of Recurrent Myocardial Infarction 277
Recurrent Myocardial Infarction in the Culprit or Nonculprit Arteries 278
INCIDENCE OF RECURRENT MYOCARDIAL INFARCTION 278
Time Course of Recurrent Myocardial Infarction 280
OUTCOMES WITH RECURRENT MYOCARDIAL INFARCTION 280
Prognosis with Type 4a Myocardial Infarction 282
PREVENTION OF RECURRENT MYOCARDIAL INFARCTION 285
SUMMARY 285
References 285
24 - REPERFUSION INJURY: PREVENTION AND MANAGEMENT\r 286
PATHOLOGICAL AND CLINICAL COMPONENTS OF REPERFUSION INJURY 286
Stunned Myocardium 286
Reperfusion Arrhythmias 288
No-Reflow Phenomenon and Microvascular Obstruction 288
Pathobiology 288
Clinical Manifestations 289
Lethal Myocardial Cell Injury Caused by Reperfusion 289
PREVENTION AND MANAGEMENT OF REPERFUSION INJURY 290
General Interventions to Manage Complications of Ischemia/Reperfusion Injury 290
Stunned Myocardium 290
Reperfusion Arrhythmias 290
Interventions Aimed at Reducing Microvascular Obstruction 290
Hypothermia 290
Agents Influencing Free Radicals 290
Interventions Aimed at Preventing Reperfusion Injury That Causes Cellular Necrosis 290
Postconditioning 291
Cyclosporin A 291
Bendavia 292
Other Pharmacotherapeutic Approaches 292
Hypothermia 293
Importance of Timing of Administration 293
Lessons Learned from Previous Studies 293
SUMMARY 293
References 293
25 - HEART FAILURE AND CARDIOGENIC SHOCK AFTER MYOCARDIAL INFARCTION\r 295
INTRODUCTION 295
Defining and Classifying Heart Failure and Cardiogenic Shock 295
EPIDEMIOLOGY AND OUTCOMES 296
Incidence and Risk Factors 296
Outcomes with Heart Failure and Cardiogenic Shock 296
Mortality Risk Prediction 297
PATHOPHYSIOLOGY 297
Hemodynamic Considerations 297
Impact of Altered Hemodynamics 299
Vasodilatory and Inflammatory Response in Cardiogenic Shock 300
PRESENTATION AND INITIAL EVALUATION 300
Presentation of Heart Failure and Cardiogenic Shock After Myocardial Infarction 300
Differential Diagnosis 300
Approach to Evaluation of a Patient with Shock 301
Clinical History and Physical Examination 301
Laboratory Assessments 301
Echocardiography 301
Cardiovascular Magnetic Resonance 302
Invasive Coronary Angiography 302
Hemodynamic Monitoring 303
MANAGEMENT OF HEART FAILURE AND SHOCK DUE TO IMPAIRED VENTRICULAR CONTRACTILITY 303
General Principles of Management 303
Coronary Reperfusion and Revascularization 303
Timing of Revascularization in Shock 304
Method of Reperfusion 305
Non–Culprit Artery Revascularization in Shock 307
Pharmacotherapy 307
Vasoactive Medications 307
General Considerations 307
Norepinephrine 308
Epinephrine 308
Phenylephrine 310
Vasopressin 310
Inotropes 310
Vasodilators 310
Volume Management 310
β-Adrenergic Blockers 311
Investigational Agents 311
Mechanical Circulatory Support 312
SUMMARY 312
References 312
26 - MECHANICAL COMPLICATIONS OF MYOCARDIAL INFARCTION\r 314
INTRODUCTION 314
RIGHT VENTRICULAR INFARCTION 314
Diagnosis of Right Ventricular Infarction 314
Physical Examination in Right Ventricular Infarction 314
Electrocardiography of Right Ventricular Infarction 315
Hemodynamics in Right Ventricular Infarction 315
Echocardiography of Right Ventricular Infarction 315
Prognosis with Right Ventricular Infarction 315
Treatment of Right Ventricular Infarction 316
MECHANICAL COMPLICATIONS OF MYOCARDIAL INFARCTION 318
Left Ventricular Free-Wall Rupture 318
Pseudoaneurysm 319
Ventricular Septal Rupture 319
Repair of Ventricular Septal Rupture: Timing and Approaches 322
Acute Mitral Regurgitation 323
Left Ventricular Aneurysm 324
LEFT VENTRICULAR THROMBUS 325
References 326
27 - Clinical Practice/Controversy: MECHANICAL CIRCULATORY SUPPORT FOR COMPLICATIONS OF MYOCARDIAL INFARCTION: ROLE OF CURRENTLY AVAILABLE DEVICES 327
INTRODUCTION 327
MECHANICAL CIRCULATORY SUPPORT DEVICES 327
Intra-Aortic Balloon Pump 327
Hemodynamic Effects 327
Clinical Use 329
Observational Evidence 330
Randomized Trials 331
TandemHeart 331
Hemodynamic Effects 331
Clinical Use 332
Clinical Trial Evidence 333
Impella 333
Hemodynamic Effects 333
V - Discharge and Beyond 419
34 - NEW CONCEPTS IN CARDIAC REHABILITATION AND SECONDARY PREVENTION AFTER MYOCARDIAL INFARCTION\r 419
INTRODUCTION 419
EVIDENCE FOR CARDIAC REHABILITATION AND SECONDARY PREVENTION 420
COMPONENTS OF CARDIAC REHABILITATION AND SECONDARY PREVENTION 421
Systematic Referral 421
Patient Risk Assessment and Tailored Planning 422
Exercise Testing and Training 423
Education 423
Psychosocial Support 423
Comprehensive Risk Factor Management 427
Physical Activity Counseling 427
Smoking Cessation 427
Nutritional Counseling and Weight Management 428
Hyperlipidemia and Lipid Control 428
Management of Hypertension 429
Cardioprotective Medications and Adherence 429
Antiplatelet Therapy 429
Inhibitors of the Renin-Angiotensin-Aldosterone System 429
β-Adrenergic Blockers 429
Adherence to Therapy 430
CURRENT CHALLENGES IN CARDIAC REHABILITATION AND SECONDARY PREVENTION 430
Patient Subgroups with Specific Needs 430
Heart Failure 430
Diabetes 430
Elderly Persons 431
Women 431
Maintaining Long-Term Behavior Change 431
Quality Assurance 431
The Role of the Cardiologist 432
Innovative Models of Rehabilitation and Prevention 432
SUMMARY 432
Classic References 432
References 432
35 - Clinical Practice/Controversy:ANTIPLATELET THERAPY AFTER MYOCARDIAL INFARCTION 434
EPIDEMIOLOGY OF RECURRENT ATHEROTHROMBOSIS 434
Myocardial Infarction as a Marker of Long-Term Atherothrombotic Risk 434
Types of Atherothrombotic Events in Stable Patients with Previous Myocardial Infarction 435
Rationale for Antiplatelet Therapy for Long-Term Secondary Prevention 437
CLINICAL TRIALS OF ANTIPLATELET THERAPY FOR SECONDARY PREVENTION AFTER MYOCARDIAL INFARCTION 437
Aspirin 437
P2Y12 Inhibitors 437
CHARISMA Trial 437
DAPT Trial 439
PEGASUS-TIMI 54 Trial 440
Pooled Analysis of P2Y12 Trials 440
Protease-Activated Receptor Antagonists 440
Bleeding with Long-Term Antiplatelet Therapy 442
Summary Across Trials 442
Withdrawal of Antiplatelet Therapy in Patients with Previous Myocardial Infarction 443
Patient Selection: Subgroups and Risk Stratification 444
Risk Scores 444
PRACTICAL APPROACH TO ANTIPLATELET THERAPY AFTER MYOCARDIAL INFARCTION 445
Patients Within 1 Year from the Most Recent Myocardial Infarction 445
Patients at 1 Year from Myocardial Infarction 447
Patients Beyond 1 Year from Myocardial Infarction 447
When to Stop P2Y12 Inhibitor or Protease-Activated Receptor 1 Antagonist Therapy 447
SUMMARY 447
References 447
36 - TACKLING THE PROBLEM OF ADVERSE VENTRICULAR REMODELING AFTER MYOCARDIAL INFARCTION\r 449
INTRODUCTION 449
DEFINITION OF ADVERSE VENTRICULAR REMODELING 449
CELLULAR AND MOLECULAR MECHANISMS 451
Cardiomyocytes 451
Endothelial Cells 452
Fibroblasts 452
Leukocytes 452
DETERMINANTS OF ADVERSE VENTRICULAR REMODELING 453
Timely Reperfusion and “No Reflow” 453
Delayed Reperfusion and the “Open Artery Hypothesis” 454
Hypertrophic Response 454
Cell Death, Senescence, and Regeneration 454
Fibrotic Response 455
Afterload, Preload, and Wall Stress 455
Neurohormonal Activation 455
Inflammation 455
Cardiac Electrical and Neuroautonomic Remodeling 456
TACKLING ADVERSE VENTRICULAR REMODELING IN CLINICAL PRACTICE 456
Guideline-Recommended Medical Therapy 457
Angiotensin and Aldosterone Blockers 457
β-Adrenergic Blockers 458
Other Pharmacologic Therapies 458
ONGOING CLINICAL AND TRANSLATIONAL RESEARCH 458
Anti-Inflammatory Therapies 458
Nonsteroidal Anti-Inflammatory Drugs 459
Complement Cascade 459
Cytokines 459
Metalloproteinases 459
Immunoglobulin Therapy 459
Growth Factors 459
Cardiac Regeneration 460
Cardiac Diastolic Constraining Devices 460
Biologic Scaffolds 461
SUMMARY 461
Classic Reading List 461
References 461
Index 462
A 462
B 463
C 463
D 464
E 464
F 464
G 464
H 464
I 464
J 465
K 465
L 465
M 465
N 466
O 466
P 466
R 466
S 467
T 467
U 467
V 467
W 468
X 468
IBC ES2