title: Wolff-Parkinson-White syndrome (type A) complicated by heart block in both normal and accessory pathways.
abstract: A 67-year-old man with Wolff-Parkinson-White syndrome type A presented with second degree atrioventricular block in anomalous pathway and complete infra-Hisian block in the His-Purkinje pathway. He had increasingly frequent attacks of dizziness not related to exercise. A permanent ventricular demand pacemaker was successfully implanted following intracardiac electrophysiological studies.
mesh_terms: D000368:Aged; D002036:Bundle of His / Q000503:physiopathology; D004562:Electrocardiography; D006327:Heart Block / Q000150:complications* / Q000503:physiopathology; D006801:Humans; D008297:Male; D014927:Wolff-Parkinson-White Syndrome / Q000150:complications* / Q000503:physiopathology