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42.16d Incidence and prognostic significance of sustained ventricular tachyarrhythmias complicating myocardial infarction
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Published:July 2018
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Abstract
Sustained ventricular tachyarrhythmia (VTA) is a common complication of myocardial infarction (MI) and an important mechanism of sudden cardiac death (SCD). Its incidence and hospital mortality have significantly declined over recent decades, with the evolution of intensive arrhythmia monitoring and modern therapeutic approaches, particularly early revascularization. However, VTA is commonly the presenting symptom of MI and many of these patients do not survive before arrival to the hospital. The prognosis and management strategy of VTA complicating MI depend on its type and timing post-MI, left ventricular systolic function, and status of coronary revascularization. This chapter provides a brief overview of the incidence, current understanding of mechanisms, prognostic significance, and management principles, including recommendations for SCD prophylaxis and sustained VTA complicating MI.
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