title: Type A Wolff-Parkinson-White syndrome obscured by left bundle branch block associated with a vascular malformation of the coronary sinus.
abstract: A case of Wolff-Parkinson-White syndrome type A with coexisting ipsilateral bundle branch block is presented. The diagnosis was suspected because of subtle electrocardiographic changes and was confirmed at electrophysiological study. Necropsy showed a vascular anomaly of the coronary sinus that contained bundles of myocardial muscle which crossed the atrioventricular ring at a site that was consistent with the predicted accessory pathway.
authors.affiliation: Division of Cardiovascular Disease, Hammersmith Hospital, London.
authors.forename: K
authors.initials: K
authors.lastname: Robinson
authors.forename: M J
authors.initials: MJ
authors.lastname: Davies
authors.forename: D M
authors.initials: DM
authors.lastname: Krikler
mesh_terms: D000368:Aged; D002037:Bundle-Branch Block / Q000150:complications*; D003330:Coronary Vessel Anomalies / Q000150:complications*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D014927:Wolff-Parkinson-White Syndrome / Q000150:complications*