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Abstract
The usefulness of recording dye dilution curves peroperatively after correction of congenital intracardiac shunts is demonstrated in three cases of atrial septal defect, one case of Ebstein's anomaly complicated by pulmonary stenosis and ventricular septal defects, and one case of pentalogy of Steno Fallot, all found to have a hEemodynamically significant residual defect. Four patients had an immediate recardiotomy, while the fifth case was re-operated on the following day. The results are described and discussed.
It has previously been found that residual cardiac shunts of greater magnitude tend to remain open or even increase (Morrow et al., 1966; Wiberg-Jørgensen et al., 1973). Consequently, when per-operative dye dilution studies showed residual shunts, an immediate recardiotomy has been performed and final surgical repair carried out. This paper deals with 5 cases where definitive correction of an intracardiac shunt was only obtained after a second cardiotomy.