P987Dilated cardiomyopathy - a group that does not benefit from ICD?

Abstract Introduction The prevalence of sudden death in patients with heart failure with reduced ejection fraction has been declining in the last decade, not only due to better optimization of pharmacological therapy, but also due to the high rate of cardiac resynchronization responders. Overall, based on recent studies demonstrating a lack of improvement in mortality in some patients with dilated cardiomyopathy, the CRT-P/CRT-D implantation ratio has been increasing across Europe. Objective To evaluate the evolution of the CRT-P/CRT-D implantation ratio and to evaluate the impact on mortality of dilated cardiomyopathy (DCM) patients who underwent resynchronization therapy. Methods A single-center prospective study of non-randomized patients who underwent CRT implantation since 2015. Demographic and clinical data from patients with dilated cardiomyopathy were assessed. The mortality of these patients and the predictors of mortality by the Cox and Kaplan-Meier regression method were evaluated. Results 486 CRTs were implanted since 2015 (male 73.9%, age 72.06±9.9 years, median follow-up time of 487 days IIQ [175, 749].) During the last 3 years, occurred an increased in CRT-P/CRT-D ratio with the CRT-P implant rate increasing from 36% of the total devices in 2015 to 47% in 2018. Of the patients submitted to CRT implantation, 256 (55%) had dilated cardiomyopathy as the etiology of heart failure. In this population, by multivariate Cox analysis, age (HR 1.1, 95% CI 1.0–1.1, p=0.003) and GFR