title: Intermittent P wave sensing in a patient with DDD pacemaker.
abstract: We present the case of a patient with a DDD pacemaker and intermittent P wave sensing due to T wave oversensing by the ventricular lead. The T wave sensing caused initiation of an extended atrial refractory period and the P waves, falling within this period, were not sensed. The problem was solved by decreasing the ventricular sensitivity.
authors.affiliation: First Cardiology Clinic, Aristotelian University, AHEPA Hospital, Thessaloniki, Greece.
authors.forename: S
authors.initials: S
authors.lastname: Paraskevaidis
authors.forename: S
authors.initials: S
authors.lastname: Mochlas
authors.forename: S
authors.initials: S
authors.lastname: Hadjimiltiadis
authors.forename: G
authors.initials: G
authors.lastname: Louridas
mesh_terms: D000368:Aged; D016275:Atrial Function / Q000502:physiology; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D017097:Electric Impedance; D004562:Electrocardiography; D004868:Equipment Failure; D006327:Heart Block / Q000628:therapy; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial; D012032:Refractory Period, Electrophysiological / Q000502:physiology; D016276:Ventricular Function / Q000502:physiology; D018879:Ventricular Premature Complexes / Q000628:therapy