Pseudofusion beats masquerading as pacemaker failure.
D000219:Adams-Stokes Syndrome / Q000628:therapy; D000328:Adult; D001145:Arrhythmias, Cardiac / Q000209:etiology*; D001698:Biomedical Engineering; D002037:Bundle-Branch Block / Q000628:therapy; D006327:Heart Block / Q000628:therapy; D006801:Humans; D008297:Male; D009135:Muscular Diseases / Q000209:etiology; D010138:Pacemaker, Artificial