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  • Title: [Unstable angina with threatening coronary lesions turned down for surgery. Outcome and prognostic factors].
    Author: Marco J, Berthoumieu H, Fournial G, Alibelli MJ, Constans R, Dardenne P.
    Journal: Arch Mal Coeur Vaiss; 1979 Sep; 72(9):963-72. PubMed ID: 41500.
    Abstract:
    The aim of this study based on a series of 200 patients, was to define the outcome and the prognostic factors of patients presenting with unstable angina, according to Bertolazi's criteria [3] and at least one stenosis greater than 80% on a proximal segment of a main coronary trunc, and to determine which factors should eventually be taken into consideration in the discussion of surgical indications. 70 out of 200 patients (35%) were turned down for direct revascularisation surgery because of an ejection fraction less than 0,35 and/or a poor arterial run off. Coronary arteriography showed 30% patients with a menacing stenosis (greater than 80%) on all three vessels, 36% on two vessels and 22% on a single vessel. The distribution and the extent of the lesions was about the same as in the operated patients. 20% patients had an ejection fraction less than 0,35, 24% between 0,34 and 0,50, and 56% greater than 0,50. At patient, the follow up period ranges from 22 to 66 months (average 32 months). In this group, the hospital mortality was 2,9%, the secondary cardiac deaths 16% and the global mortality 19% compared to 12,6% for the operated patients in the same period. The incidence of secondary non-fatal infarction was low (9%). 52% of survivors have persistent angina, 39% severe (Class II or III). Two prognostic factors were detected from this study: the type of angina: the intermediary syndrome had a bad prognosis, 38,5% mortality compared to 13% for aggravated chronic angina; and the ventriculography: patients with ejection fractions less than 0,35 had 64% mortality compared to 7,3% for those with ejection fractions greater than 0,40. The number of menacing lesions, the extent of the lesions of the artery involved did not affect the prognosis when severe abnormalities of left ventricular function were absent.
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