title: Pulsus alternans caused by 2:1 left bundle branch block.
abstract: Pulsus alternans was caused by 2:1 left bundle branch block in a patient with a left ventricular ejection fraction of 50% and normal coronary arteries. The observations documented the profound depressant hemodynamic effect of complete left bundle branch block in the setting of minimal systolic left ventricular function.
authors.affiliation: Division of Cardiology, University of South Florida College of Medicine and Tampa General Hospital, USA. ssbarold@aol.com
authors.forename: S Serge
authors.initials: SS
authors.lastname: Barold
authors.forename: Bengt
authors.initials: B
authors.lastname: Herweg
mesh_terms: D002037:Bundle-Branch Block / Q000150:complications* / Q000503:physiopathology*; D004562:Electrocardiography; D006801:Humans; D013318:Stroke Volume / Q000502:physiology; D018487:Ventricular Dysfunction, Left / Q000209:etiology* / Q000503:physiopathology*