VVI pacemaker ventricular undersensing.
Johnson
C D
CD
D000368:Aged; D004562:Electrocardiography; D004868:Equipment Failure; D005260:Female; D006327:Heart Block / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D012804:Sick Sinus Syndrome / Q000628:therapy