Korean J Thorac Cardiovasc Surg.  2005 Aug;38(8):529-537.

The Results of Extracardiac Fontan Operation in the Patients with Heterotaxy Syndrome

Affiliations
  • 1Department of Thoracic and Cardiovascular Surgery, Sejong General Hospital, Sejong Heart Institute, Bucheon, Korea.
  • 2Department of Pediatrics, Sejong General Hospital, Sejong Heart Institute, Bucheon, Korea. ksoojn@yahoo.co.kr
  • 3Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine.
  • 4Department of Thoracic and Cardiovascular Surgery, Konkuk University Medical College.

Abstract

BACKGROUND: Historically the Fontan operation in patients with single ventricle and heterotaxy syndrome has been associated with high mortality because of systemic or pulmonary anomalous venous drainage, incompetent common atrioventricular valve, right ventricle type univentricular heart, and arrhythmia. MATERIAL AND METHOD: A retrospective review of 62 patients (age: 54.79+/-33.97 months) with heterotaxy syndrome who underwent a extracardiac Fontan operation between 1996 and 2005 was performed. Twenty one patients had left atrial isomerism, and 41 had right isomerism. The Fontan procedure was staged in all but 2 patients, and a fenestration was less placed in left isomerism. RESULT: Left isomerism was associated more with interrupted inferior vena cava and pulmonary arteriovenous fistula, and right isomerism was associated more with anomalous pulmonary venous drainage, common atrioventricular valve and morphologic right ventricle. There were 3 hospital deaths (4.8%), and 3 late deaths (5.2%) with a follow-up duration of 48.8+/-31.0 months. Eight-year survivals were 90.5+/-6.4% in left isomerism and 88.6+/-5.4% in right isomerism (p=0.94). At 8 years, freedom from reoperation was 73.9+/-11.3% in left isomerism, and 82.3+/-6.7% in right isomerism (p=0.87). Atrioventricular valve regurgitation progressed after Fontan operation in heterotaxy syndrome, and reoperation for pulmonary arteriovenous fistula and permanent pacemaker implantation for sinus node dysfunction were required more in left isomerism.
CONCLUSION
The extracardiac Fontan operation can now be performed in patients with heterotaxy syndrome with excellent survival. However, morbidity in terms of postoperative atrioventricular valve regurgitation, arrhythmia, and pulmonary arteriovenous fistula remains significant.

Keyword

Congenital heart disease; Heterotaxy; Fontan operation

MeSH Terms

Arrhythmias, Cardiac
Arteriovenous Fistula
Drainage
Follow-Up Studies
Fontan Procedure*
Freedom
Heart
Heart Defects, Congenital
Heart Ventricles
Heterotaxy Syndrome*
Humans
Isomerism
Mortality
Reoperation
Retrospective Studies
Sick Sinus Syndrome
Vena Cava, Inferior
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