[Angiographic signs and pathophysiology of abnormal origin of the left coronary artery from the pulmonary trunk].

The results of intracardiac examination of 37 patients with anomalous origin of the left coronary artery from the pulmonary trunk were studied. On the basis of anatomo-angiographic++ comparisons the authors point out the characteristic features of coronary circulation and affection of the left ventricular myocardium which determine the clinical manifestations of its dysfunction. The functional condition of the left ventricle was appraised depending on the character of development of the intercoronary collaterals.