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Review |
a Division of Cardiovascular-Thoracic Surgery, Department of Surgery, Children's Memorial Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
b Division of Cardiology, Children's Memorial Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
Received 19 September 2007; received in revised form 20 March 2008; accepted 7 April 2008.
* Corresponding author. Address: Division of Cardiovascular-Thoracic Surgery, Children's Memorial Hospital, 2300 Children's Plaza, mc 22, Chicago, IL 60614, USA. Tel.: +1 773 880 4378; fax: +1 773 880 3054. (Email: cmavroudis{at}childrensmemorial.org).
Conversion of the atriopulmonary Fontan to a total cavopulmonary extracardiac connection with concomitant arrhythmia surgery and pacemaker placement is a safe and efficacious procedure for this patient population. From 1994 to 2007 a total of 118 patients have undergone this procedure with one (0.8%) early and nine (7.6%) late deaths. During the course of our experience with Fontan conversion our surgical strategy has evolved to include various ablative techniques to treat macro re-entrant atrial tachycardia, focal (automatic) atrial tachycardia, atrioventricular nodal reentry tachycardia, atrial tachycardia due to accessory connections, atrial fibrillation, and ventricular tachycardia. The various mechanisms that we use to treat the underlying atrial arrhythmias are described in this review. We have also encountered patients with variations of the Fontan and other complex anatomic and pathophysiologic aberrations who were not amenable to standard takedown and ablative procedures. We describe those circumstances and the solutions we found to treat those patients.
Key Words: Fontan Arrhythmia Congenital heart surgery Single ventricle
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