title: Electrophysiologic documentation of trifascicular block as the common cause of complete heart block.
mesh_terms: D000368:Aged; D001285:Atropine / Q000627:therapeutic use; D002037:Bundle-Branch Block / Q000150:complications*; D006328:Cardiac Catheterization; D004562:Electrocardiography; D006325:Heart Atria / Q000503:physiopathology; D006327:Heart Block / Q000188:drug therapy / Q000209:etiology*; D006329:Heart Conduction System / Q000503:physiopathology; D006339:Heart Rate; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008875:Middle Aged; D010138:Pacemaker, Artificial
chemical_list: D001285:Atropine