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The Annals of Thoracic Surgery, Vol 51, 616-619, Copyright © 1991 by The Society of Thoracic Surgeons

ARTICLES

Closed heart cryoablation of the His bundle using an anterior septal approach

YA Louagie, GM Guiraudon, GJ Klein and R Yee
Department of Surgery, University of Western Ontario, University Hospital, London, Canada.

His bundle cryosurgical ablation using a closed heart anterior septal approach was used in 6 patients. There were 3 men and 3 women, aged 24 to 73 years. Three patients had atrial fibrillation and 2 patients had atrial flutter (2 with combined episodes of atrial tachycardia). One patient had atrial tachycardia. Five patients had no structural heart disease and 1 patient had left ventricular dilatation (ejection fraction, 0.35). All patients undergoing His bundle cryosurgical ablation had permanent heart block without intraoperative complications (mean follow-up, 25 months). Closed heart anteroseptal cryoablation of the His bundle is effective and is an alternative to attempted catheter ablation.