Abstract 17020: Increasing Tachycardic Asymmetry in Heart Rate Variability is Associated With Sudden Cardiac Death in a Community Cohort: The Atherosclerotic Risk in Community Study

Introduction: Poincare plot asymmetry has been associated with sustained ventricular tachyarrhythmias, implicating involvement of the autonomic nervous system. Porta’s index provides a quantitative assessment of the degree and direction of temporal asymmetry in heart rate variability (HRV), either toward relative bradycardia or tachycardia. The association between temporal asymmetry of HRV with sudden cardiac death (SCD) in the general...