Stents show promise in treating left main coronary artery disease.  In many patients, drug-eluting stents may be just as effective as bypass surgery in improving left ventricular ejection fraction.
D003324:Coronary Artery Disease / Q000601:surgery*; D054855:Drug-Eluting Stents; D006352:Heart Ventricles; D006801:Humans; D013318:Stroke Volume; D016896:Treatment Outcome