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  • Title: Left ventricular function after myocardial infarction: clinical and angiographic correlations.
    Author: Cortina A, Ambrose JA, Prieto-Granada J, Moris C, Simarro E, Holt J, Fuster V.
    Journal: J Am Coll Cardiol; 1985 Mar; 5(3):619-24. PubMed ID: 3973258.
    Abstract:
    There is a paucity of information correlating the angiographic findings immediately after myocardial infarction with the clinical status before infarction. Therefore, the coronary anatomy, collateral circulation and quantitative left ventricular function were studied in 39 patients who underwent angiography within 3 weeks of a first transmural myocardial infarction. In all patients, the vessel supplying the infarct was totally occluded at the time of angiography. Patients without angina before infarction (Group I) had fewer coronary obstructions than did patients with a long history of angina before infarction (Group II) (1.5 +/- 0.5 versus 2.5 +/- 0.5, respectively, p less than 0.001) but worse overall and regional left ventricular function. These paradoxical differences between Groups I and II were evident in patients with anterior as well as inferior infarction. Patients in Group I had significantly lower collateral scores than did patients in Group II (0.6 +/- 0.8 versus 1.9 +/- 0.9, respectively, p less than 0.0001) and 13 of 22 patients in Group I had no collateral vessels compared with only 1 of 17 in Group II (p less than 0.001). Partial preservation of anterior wall function in Group II patients with anterior infarction was related both to the presence of collateral vessels and to the more distal obstruction of the left anterior descending coronary artery in these patients as compared with patients with anterior infarction in Group I. In contrast, in patients with inferior wall infarction, no relation could be found between the presence of collateral vessels and regional left ventricular function, although only two patients in this series with inferior infarction did not have collateral vessels.(ABSTRACT TRUNCATED AT 250 WORDS)
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