Persistent sinus bradycardia treated by permanent transvenous pacemaker.
D000368:Aged; D001919:Bradycardia / Q000601:surgery*; D002908:Chronic Disease; D006801:Humans; D008297:Male; D008722:Methods; D010138:Pacemaker, Artificial; D012849:Sinoatrial Node; D014680:Veins