Atrial standstill with subnodal conduction defect and diffuse ventricular fibrosis managed with low right atrial pacing.
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.
Apostolopoulos
Theodoros
T
Department of Cardiology, Hippokration General Hospital, University of Athens, Athens, Greece.
Gatzoulis
Konstantinos
K
Gialafos
John
J
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