[Atheromatous stenosis of the left coronary trunk. 28 surgical cases].

22 patients with atheromatous narrowing of the left coronary trunk underwent surgery between 1969 and 1974. Most of these patients had severe and incapacitating angina pectoris. The clinical features are readily explained by the size of the diffuse anatomical lesions, which are to be found on the left coronary trunk as well as on the three coronary vessels themselves. This series has not confirmed the serious risk of surgery in such cases, as there were no operative deaths. Secondary mortality was low (9%), and the 20 survivors (average length of follow-up: 26 months) were mostly (18/20) in an excellent condition functionally. These facts have lead us to advise surgery whenever possible.