Two cases of common pulmonary vein atresia (CPVA) are presented. In one, the diagnosis was suspected on clinical grounds, and in both it was c onfirmed by cardiac catheterization and angiocardiography. Surgical correction was attempted unsuccessfully in one. Prompt identification of the defect followed by immediate operation, using a technic of profound hypothermia and circulatory arrest, offers hope of successful correction in this rare anomaly.

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SYNOPSIS Ten cases of pulmonary valve atresia with intact ventricular septum have been studied by selective angiocardiography during the last 3 years. An awareness of the clinical features and chest radiograph appearances of this condition may lead to prompt angiocardiography and perhaps to a happier prognosis than is now the case.

Summary Disposable “Travenol” oxygenators are used for high flow perfusions using diluted blood with moderate hypothermia. A heat‐exchanger is placed in the venous line from the patient. Blood is collected on the afternoon prior to surgery. Clinical and laboratory data from fifty patients are presented and discussed. This technique has proved to be simple, flexible and satisfactory.