Abstract 10163: Post-systolic Strain Index Derived From the Left Ventricular Strain Curves Predicts Congestive Heart Failure in Very Elderly Patients: A 2D Speckle Tracking Echocardiographic Study

Introduction: Strain analysis of the myocardium is a very sensitive method for predicting clinical outcomes. We hypothesized that the post-systolic strain index (PSI), which reflects post systolic shortening of the left ventricular (LV) myocardium, would predict congestive heart failure (CHF). Methods: We prospectively performed echocardiography with 2D speckle tracking in 101 patients over 80 years of age (mean±SD, 84.7±4.0). Underlying heart diseases were hypertensive heart disease [n = 61], coronary artery disease [n = 22], valvular heart disease [n = 14], and others. 2D longitudinal strain curves of the LV myocardium were extracted from the 3 apical views. End-systolic strain (S) at the time of aortic valve closure and peak strain (peak S) during a whole cardiac cycle were depicted automatically. PSI was calculated as {(peak S - S)/peak S} X 100(%). At the end of follow-up, we compared all baseline echocardiographic parameters between patients with new onset or worsening of CHF and those without it. R...