(1) Department of Medicine, Cardiology Division, Arrhythmia Service, Montefiore Medical Center and the Albert Einstein College of Medicine, Cardiology–N2–Silver Zone, 111 E. 210th Street, Bronx, NY, 10467,718 920 4292
Abstract:
Left bundle branch block (LBBB) has negative hemodynamic effects. In the same patient, profound hypotension occurs during supraventricular tachycardia with LBBB but not at the same rate in the absence of LBBB. At slower rates, blood pressure is similar with and without LBBB.