title: The significance of bilateral bundle branch block in the preoperative patient. A retrospective electrocardiographic and clinical study in 30 patients.
mesh_terms: D000219:Adams-Stokes Syndrome / Q000453:epidemiology; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000453:epidemiology; D001281:Atrial Fibrillation / Q000453:epidemiology; D002037:Bundle-Branch Block / Q000150:complications* / Q000175:diagnosis; D002763:Cholecystectomy; D006801:Humans