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Use of contrast echocardiography in the diagnosis of partial anomalous pulmonary venous connection.
American Journal of Cardiology 1979 Februrary
Contrast echocardiography is useful in diagnosing the presence of partial anomalous pulmonary venous connection, particularly when it occurs in association with an atrial septal defect. Injections of saline solution, Cardiogreen or the patient's own blood were made in the inferior vena cava, left atrium and pulmonary veins of 27 patients. In all patients, the inferior vena caval injections showed only right heart clouding with no evidence of a right to left shunt. In 21 patients, the left atrial and pulmonary venous injections showed clouding of both the right and left heart structures, indicating a left to right atrial shunt and normal pulmonary venous connection. In six patients, the left artrial injections showed right and left heart clouding, but the right pulmonary venous injections showed only right heart structures, indicating a left to right atrial shunt with partial anomalous pulmonary venous connection. Contrast echocardiography proved to be a sensitive method of diagnosing the anomalous venous connection without the use of dye curves. The method is not useful when a right to left atrial shunt is present and may show false positive results for partial anomalous pulmonary venous connection it left atrial visualization is not adequate during injection into the pulmonary vein.
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