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The Annals of Thoracic Surgery, Vol 46, 412-415, Copyright © 1988 by The Society of Thoracic Surgeons

ARTICLES

Transatrial repair of double-chambered right ventricle

DK Ford, CA Bullaboy, WM Derkac, RA Hopkins, RB Jennings Jr and DH Johnson
Division of Pediatric Cardiology, Children's Hospital of The King's Daughters, Eastern Virginia Medical School, Norfolk 23507.

Double-chambered right ventricles (DCRVCs) traditionally have been repaired via a right ventriculotomy. We describe the cases of 8 children (aged 7 months to 6 years; weight, 6.3 to 21.5 kg), who underwent repair of DCRV via a right atriotomy. Six patients had ventricular septal defects. Peak systolic gradients in the right ventricular outflow tract were 26 to 135 mm Hg. The QP/QS were 1.1 to 2.5. Cardiopulmonary bypass times were 52 to 89 min (mean, 65.5 min) with aortic cross-clamp times of 20 to 56 min (mean, 39 min). Mean intraoperative gradients following repair were 5.8 mm Hg. Three patients had transient postoperative atrioventricular block requiring temporary pacing. Two patients required minimal inotropic support (dopamine, 2.5 to 5 micrograms/kg/min). The children have all been asymptomatic after hospitalization with follow-up times of 5 months to 4.5 years. No patient requires cardiac medications or has significant, persistent dysrhythmias; however, 1 patient required reoperation. Transatrial repair of DCRV allows excellent operative anatomical visualization and should be considered as an alternative to the transventricular approach in patients with this congenital heart defect.

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