THE EFFECT OF SINGLE CHAMBER RIGHT VENTRICULAR PACING ON THE CLINICAL PROFILES, QRS MORPHOLOGY AND QRS DURATION

To assess the impact of single chamber right ventricular pacing on the clinical profiles, QRS morphology and QRS duration on electrocardiogram. This prospective study was conducted to evaluate clinical profile, QRS morphology and QRS duration of patients are having a atrioventricular disease, undergoing single chamber pacemaker implantation between November 2017 to January 2019 at UNMICRC, Ahmedabad, Gujarat. All patients were followed up biannually. At each follow-up visit clinical features were assessed, and pacemaker interrogation, electrocardiography was done. Results: Out of 135 patients, 98 patients completed 12 months follow -up and were included in final analysis. Mean age was 65.92 ± 9.64 years with 60.2% male. Most common comorbidity was hypertension (49.5%) followed by diabetes mellitus type II (24.5%), coronary artery disease (9.2%), hypothyroidism (4.1%) and cerebro vascular accident (2.0%). The Commonest indication for pacemaker was complete heart block (85.7%) followed by high degree Atrioventricular (AV) block (14.3%). 35.7% and 40.8%…