title: Coronary artery stenosis after radiofrequency catheter ablation of accessory atrioventricular pathways in children with Ebstein's malformation.
abstract: BACKGROUND
  Complications concerning the coronary arteries that are directly related to radiofrequency catheter ablation procedures have not been reported in children. Coronary artery lesions, however, have been demonstrated after the endocardial application of radiofrequency current in young animals.
  
  
  RESULTS
  Two boys with Ebstein's anomaly of the tricuspid valve developed clinically asymptomatic coronary artery stenosis after radiofrequency catheter ablation of right-sided accessory atrioventricular pathways with standard catheter technology.
  
  
  CONCLUSIONS
  The complication of coronary artery stenosis demonstrates a substantial risk after right atrial free wall radiofrequency current application in children. The risk of late coronary alterations should be considered when the use of catheter ablation procedures to young patients is proposed.
authors.affiliation: Department of Pediatric Cardiology and Pediatric Intensive Care, Hannover Medical School, Hannover, Germany. Bertram.Harald@mh-hannover.de
authors.forename: H
authors.initials: H
authors.lastname: Bertram
authors.forename: R
authors.initials: R
authors.lastname: Bökenkamp
authors.forename: M
authors.initials: M
authors.lastname: Peuster
authors.forename: G
authors.initials: G
authors.lastname: Hausdorf
authors.forename: T
authors.initials: T
authors.lastname: Paul
mesh_terms: D001283:Atrioventricular Node / Q000503:physiopathology / Q000601:surgery*; D006348:Cardiac Surgical Procedures / Q000009:adverse effects; D017115:Catheter Ablation / Q000009:adverse effects*; D002648:Child; D002675:Child, Preschool; D003327:Coronary Disease / Q000209:etiology*; D004437:Ebstein Anomaly / Q000503:physiopathology / Q000601:surgery*; D004562:Electrocardiography; D006801:Humans; D008297:Male