We report the cases of 4 patients in whom surgical ostioplasty was performe
d for isolated severe ostial stenosis of the left main stem-coronary artery
. No perioperative death or myocardial infarction occurred. One patient req
uired reoperation for symptomatic recurrent ostial stenosis after 6 months.
The others remained angina free after a mean follow-up of 23 months. The l
iterature associated with this procedure is briefly reviewed.