Meanings of fistulous communication in English

We have occasional instances of impregnation by rectal coitus, the semen finding its way into an occluded vaginal canal by a fistulous communication.

The presence of a fistulous communication of a saphenous vein graft aneurysm after coronary bypass surgery to one of the heart chambers is extremely rare.

Only 17 cases of such fistulous communications involving three major coronary arteries have been reported in the literature.

It is suggested that the fistulous communications to the left ventricle was a cause of his angina pectoris, probably because of the coronary steal phenomenon.