title: Heart block in the aged. Is the patient too old to be permanently paced?
mesh_terms: D000367:Age Factors; D000368:Aged; D006327:Heart Block / Q000150:complications / Q000628:therapy*; D006329:Heart Conduction System / Q000503:physiopathology; D006331:Heart Diseases / Q000150:complications; D006801:Humans; D008722:Methods; D010138:Pacemaker, Artificial