[Coronary fistula into the sinus coronarius. Hemodynamics, clinical aspects, therapy].

Coronary artery fistulas are rare, inborn anomalies which will be diagnosed more often as the diagnostic method of coronary arteriography is increasing. This report concerns a preoperatively diagnosed coronary arteriovenous fistula of the right coronary artery to the sinus coronarius; Frequency, pathological physiology, clinical symptoms, differential diagnosis, prognosis and treatment are discussed. The importance of using selective coronary arteriography to outline the anatomy of these malformations is stressed. Surgical treatment is the only effective way of therapy and should be performed after diagnosis, even if in an early stage of the disease the ECG does not show any changes in spite of a large fistula.