[Immediate and distant results of aorto-coronary bypass performed in patients with compromised cardiac contraction].
From March 1979 to December 1985 at Cardiac Surgery Department of Parma 1064 patients underwent myocardial revascularization. Of them, 82 (7.7%) with poor left ventricular function (ejection fraction less than 40%) were studied to evaluate the effects of coronary artery bypass grafting on surgical risk, survival, ventricular performance and late clinical status. Three vessels disease was present in 65.9% and severe stenosis of left main coronary artery in 21.9% of patients. There were 74 (90.2%) patients with a history of previous myocardial infarction and 8 (9.75%) with congestive heart failure. Mean ejection fraction was 32.21 +/- 3.6%. On biplane left ventricular angiography 60 (73.2%) cases had two or more akinetic segments and 22 (21.9%) only hypokinesia. Operative mortality rate was 4.9%; perioperative myocardial infarction occurred in 5 patients (6.2%). Mean follow-up was 37.64 +/- 9.23 months and survival rate, including operative mortality, was 91.3%. Among the long-term survivors 89.04% are asymptomatic and in 49% there was a significantly improvement of preoperative left ventricular ejection fraction. We conclude that myocardial revascularization should be performed also in patients with left ventricular dysfunction, because of improvement of quality of life.
D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009200:Myocardial Contraction; D011292:Premedication; D012189:Retrospective Studies; D013318:Stroke Volume
Risultati immediati ed a distanza del bypass aorto-coronarico eseguito in pazienti con contrattilità cardiaca compromessa.