[Systolic strangulation of the anterior interventricular artery : a rare cause of myocardial ischaemia (author's transl)].

The relationship between myocardial ischaemia and the muscular bridge over the anterior interventricular artery with systolic strangulation has now been demonstrated. This forms part of the aetiology of angina pectoris with radiologically "normal" coronary arteries. A case is reported where the severity of the clinical picture justified surgery to divide the muscular bridge, without touching the underlying artery. The course has been satisfactory, with a two years follow-up.