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. 1982 Nov 20;112(47):1688-94.

[Is the aorto-coronary bypass operation useful in patients with advanced coronary sclerosis and poor ventricular function?]

[Article in German]
  • PMID: 6983721

[Is the aorto-coronary bypass operation useful in patients with advanced coronary sclerosis and poor ventricular function?]

[Article in German]
B Suter et al. Schweiz Med Wochenschr. .

Abstract

The prognosis and long term results in 56 patients with coronary artery disease and impaired left ventricular function (EF less than or equal to 40%) who underwent aortocoronary bypass surgery (all cases) and aneurysmectomy (26 cases) between 1972 and 1980 were compared with those in 47 equally ill patients treated medically. Survival was significantly higher in the surgical than in the non-surgical group, the survival rate being 80% and 58% respectively at 41 months after study entry (p = 0.012). No difference in survival was observed between grafted patients and patients in whom additional aneurysmectomy was performed. 26 patients were recatheterized postoperatively and this revealed an increase in left ventricular ejection fraction at rest from 33 +/- 5% to 44 +/- 11% (p less than 0.001) and a decrease in left ventricular end-diastolic pressure from 18 +/- 8 mm Hg to 14 +/- 8 mm Hg (p less than 0.025). Postoperatively the patients had less angina and physical working capacity increased. At restudy the average NYHA class had decreased in the surgical group from 2.9 +/- 0.7 to 2.1 +/- 0.9 (p less than 0.001) but was unchanged in the non-surgical group (2.6 +/- 0.6 and 2.6 +/- 0.7 respectively). It is concluded that aortocoronary bypass surgery improves survival, left ventricular function and symptoms in patients with coronary artery disease and severely impaired myocardial function.

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