OR35. Exercise Effect on Global Myocardial Function Score in Patients with Refractory Angina Undergoing Extracorporeal Shockwave Myocardial Revascularization (ESMR): A Study focusing on Speckle Tracking and Exercise Stress Echocardiography

Abstract

Abstract Aims Refractory angina pectoris (RAP) is defined as the occurrence of frequent angina attacks uncontrolled by optimal drug therapy. Extracorporeal shockwave myocardial revascularization (ESMR) is one of the alternative therapies that can be performed to treat RAP. Stress echocardiography is necessary to determine the inducible myocardial segments. To date, study evaluating the effect of exercise on myocardial function using WMSI and GLS was still limited. The aim of this study was to show the effect of exercise on global myocardial function evaluated using GLS and WMSI from echocardiography. Methods and Results This is a cross sectional and single center study of 9 Refractory Angina Pectoris patients underwent stress echocardiography from April - June 2021 in Mohammad Hoesin General Hospital, Palembang. Pre and post exercise WMSI and GLS were obtained and analyzed using McNemar non-parametric test. There were no significant differences between both pre and post GLS (p = 0.500) and WMSI (p = 0.250) through exercise stress echocardiography. Conclusion Our study showed no significant difference of global myocardial function evaluated by GLS and WMSI, pre and post exercise. Segmental myocardial function analysis seems to be more potential as useful assessment for RAP undergoing ESMR procedure.