Relation of right ventricular pacing in tetralogy of Fallot to electrical resynchronization.
Prolonged QRS duration is a marker of increased sudden death risk in tetralogy of Fallot. Right ventricular pacing increased QRS duration in this population and could be counteracted with optimization of the atrioventricular interval in a subset of patients, potentially offering right ventricular resynchronization in patients with baseline right bundle branch block. Effective pacing therapy may require site-specific placement of pacing leads and precise pacemaker programming.
Stephenson
Elizabeth A
EA
Department of Cardiology, Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA.
Cecchin
Frank
F
Alexander
Mark E
ME
Triedman
John K
JK
Walsh
Edward P
EP
Berul
Charles I
CI
D000328:Adult; D001283:Atrioventricular Node / Q000503:physiopathology; D002037:Bundle-Branch Block / Q000503:physiopathology* / Q000628:therapy; D002304:Cardiac Pacing, Artificial; D017147:Defibrillators, Implantable; D004562:Electrocardiography; D004567:Electrodes, Implanted; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D012189:Retrospective Studies; D013771:Tetralogy of Fallot / Q000503:physiopathology*