Intraventricular Dyssynchrony among patients with left bundle branch block

Abstract

Objective: To determine the frequency of intraventricular dyssynchrony among patients with left bundle branch block.

Methods: The study was conducted at Hayatabad Medical Complex, Peshawar, from January, 2017 to July, 2017. All patients aged 18 years and above with Left Bundle Branch Block (LBBB) on ECG with or without heart failure were included in the study. Patients with valvular heart disease, predominant diastolic heart failure, acute coronary syndromes or coronary revascularization in last three months and atrial fibrillation were excluded. Tissue Doppler Imaging (TDI) parameters were measured from 2-D images in apical 4-chamber and 2chamber views. Consecutive non-probability sampling technique was used for sample collection.

Results: Our study included 159 patients. Mean age was 52 years with SD