论文部分内容阅读
Background The aim of our study was to verify if newly proposed criteria for true LBBB identify patients with a better clinical and instrumental response to CRT.Methods We retrospectively enrolled 62 patients received a CRT device and allocated them to three groups according to QRS morphology: true LBBB (t-LBBB,n=24);false LBBB (f-LBBB,LBBB with no notch or notches in fewer than two of the leads,n=16);and non-LBBB (IVCD and RBBB,n=22).The primary endpoint was the utility of criteria for true LBBB to predict a composite endpoint of all-cause mortality and hospital admission with heart failure.The secondary endpoint was the utility of the same criteria to predictor response and super-response to CRT.