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Angiographic demonstration of bleeding site following late rare complication of aorto-coronary by-pass.

The intravascular injection of contrast may demonstrate the site of bleeding more successfully than conventional radiographic methods. This technique has been applied to lesions involving various sites. The application of angiography to demonstrate a bleeding site following a late unsuspected complication (removal of epicardial pacemaker) after aorto-coronary saphenous vein by-pass grafting has to our knowledge, not yet been reported in the literature, although uneventful perforation of a coronary artery during coronary catheterization has been observed (Morettin and Wallace, 1970).