MITRAL ATRESIA ASSOCIATED WITH PULMONARY VENOUS ANOMALIES
Open Access
- 1 March 1964
- Vol. 26 (2) , 241-249
- https://doi.org/10.1136/hrt.26.2.241
Abstract
Pulmonary venous anomalies were observed in 5 of 29 specimens with mitral atresia. In 4 of these 5 the anomalous pulmonary veins took the form of anomalous pulmonary venous connexion. In the remaining case the pulmonary venous anomaly was represented by cor triatriatum. In 3 (Group I), mitral atresia and premature closure of the foramen ovale coexisted. The anomalous pulmonary venous connexions in this group provided collateral routes for the flow of pulmonary venous blood, and can be understood as developing in response to obstruction at the foramen ovale when the mitral valve is atretic. In the remaining 2 (Group II) no such causative factor could be invoked. In one of the latter group total anomalous pulmonary venous connection coexisted with a common atrium. In the other, cor triatriatum coexisted with a patent foramen ovale. Pulmonary venous obstruction occurred in each of the 5 cases.Keywords
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