title: Intra- and infra-His block. Indications for pacemaker treatment.
mesh_terms: D000200:Action Potentials; D000368:Aged; D002036:Bundle of His / Q000503:physiopathology*; D002037:Bundle-Branch Block; D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis*; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D010138:Pacemaker, Artificial