title: Atrial standstill with subnodal conduction defect and diffuse ventricular fibrosis managed with low right atrial pacing.
abstract: In patients with congenital heart disease presenting with bradyarrhythmia, many electrophysiological abnormalities are found. This report presents a case of a man with surgically corrected single atrium and pulmonary valve stenosis, atrial standstill, delayed AV node conduction, first-degree intra- and second-degree infra-His block, who was permanently paced from a restricted excitable area of the low right atrium, as the pacing threshold was unacceptable at any ventricular site.
authors.affiliation: Department of Cardiology, Hippokration General Hospital, University of Athens, Athens, Greece.
authors.forename: Theodoros
authors.initials: T
authors.lastname: Apostolopoulos
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Gatzoulis
authors.forename: John
authors.initials: J
authors.lastname: Gialafos
mesh_terms: D001145:Arrhythmias, Cardiac / Q000628:therapy*; D001283:Atrioventricular Node / Q000503:physiopathology; D001919:Bradycardia / Q000628:therapy*; D002036:Bundle of His / Q000503:physiopathology; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D004719:Endomyocardial Fibrosis / Q000150:complications*; D006325:Heart Atria / Q000002:abnormalities; D006327:Heart Block / Q000628:therapy; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D008875:Middle Aged