title: Localization of site of traumatic heart block with His bundle recordings: electrophysiologic observations regarding the nature of "split" H potentials.
mesh_terms: D000328:Adult; D001285:Atropine / Q000494:pharmacology; D002037:Bundle-Branch Block / Q000209:etiology; D006328:Cardiac Catheterization; D004562:Electrocardiography; D004594:Electrophysiology; D006321:Heart / Q000187:drug effects; D006327:Heart Block / Q000209:etiology* / Q000628:therapy; D006329:Heart Conduction System; D006335:Heart Injuries / Q000150:complications*; D006345:Heart Septal Defects, Ventricular / Q000209:etiology*; D006801:Humans; D007545:Isoproterenol / Q000494:pharmacology; D008297:Male; D010138:Pacemaker, Artificial
chemical_list: D001285:Atropine; D007545:Isoproterenol