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[Apical hypertrophic myocardiopathy and multiple fistulae between the coronary vessels and the left ventricle].

A male patient presented with symptoms of angor under effort. Echocardiography and angiocardiography revealed apical hypertrophic myocardiopathy, associated with multiple fistulas connecting the anterior descending coronary artery and right coronary artery with the cavity of the left ventricle, as demonstrated by coronariography. We comment on the hypothesis that support a causal relationship between the two anomalies, microfistulas being the possible cause of the reactive hypertrophy through the induction of a coronary steal phenomenon with local ischemia; alternatively, the myocardiopathy itself might be the cause of microfistulas formation by inducing an anomaly in the Thebesius venous system. A pathogenic relationship is suggested between the syndrome of angor and these two rare pathological entities.