%0 Journal Article %T Late deterioration of left ventricular function after right ventricular pacemaker implantation %A Barbara Bellmann %A Bogdan G. Muntean %A Christopher Gemein %A Kathrin Schmitz %A Patrick Schauerte %A Tina Lin %J Archive of "Anatolian Journal of Cardiology". %D 2016 %R 10.5152/AnatolJCardiol.2015.6515 %X Right ventricular (RV) pacing induces a left bundle branch block pattern on ECG and may promote heart failure. Patients with dual chamber pacemakers (DCPs) who present with progressive reduction in left ventricular ejection fraction (LVEF) secondary to RV pacing are candidates for cardiac resynchronization therapy (CRT). This study analyzes whether upgrading DCP to CRT with the additional implantation of a left ventricular (LV) lead improves LV function in patients with reduced LVEF following DCP implantation %K CRT %K pacemaker-mediated cardiomyopathy %K pacemaker %K heart failure %K LV lead %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5331352/