Abstract
Perforation of the left main stem is a rare complication associated with combined aortic valve replacement and by‐pass surgery. One‐year following aortic valve replacement a 70‐year‐old male presented with chest pain. This was related to a slowly expanding haematoma caused by a low profile chronic perforation of the left main. Subsequently, a tailored percutaneous modification of the main stem was performed. At three months follow‐up, he had no complaints and selective coronary angiography confirmed the successful sealing of the perforation with a concomitant regression of the prior haematoma.