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The Annals of Thoracic Surgery, Vol 22, 578-583, Copyright © 1976 by The Society of Thoracic Surgeons

ARTICLES

Results following physiological repair for tricuspid atresia

CJ Tatooles, RG Ardekani, RA Miller and M Seratto

Fourteen patients underwent a physiological operation for tricuspid atresia. Seven patients survived up to 3 years after operation. Six patients underwent hemodynamic studies 2 to 34 months postoperatively (mean, 15 months). Average age at the time of operation was 14 years (range, 5 to 25 years). Postoperative studies showed 4 patients to be in sinus rhythm and 2 in junctional rhythm. Right atrial pressure was elevated an average of 17 mm Hg (range, 10 to 34 mm Hg). All patients showed good atrial transport function regardless of their rhythm. Two had a right atrium-left pulmonary artery gradient of 1.5 to 10 mm Hg across the conduit. Average arterial saturation was 92% (range, 87 to 97%), on improvement of 13% over preoperative values. Residual hypoexmia was due to pulmonary vein desaturation and to atrial right-to- left shunting early postoperatively and later, to atrial right-to-left shunting alone.