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  • Title: [Thrombolysis in acute myocardial infarct in everyday clinical practice].
    Author: De Benedetti E, Urban P, Burgan S, Dorsaz PA, Chatelain P, Gaspoz JM, Chevrolet JC, Unger PF.
    Journal: Schweiz Med Wochenschr; 1997 Aug 05; 127(31-32):1285-90. PubMed ID: 9333939.
    Abstract:
    We prospectively included in a database all thrombolyzed acute transmural myocardial infarction patients admitted to our hospital from November 1986 to September 1995. Six hundred and twenty-seven patients (497 males) with a mean age of 61 +/- 12 years (range 26-88 years) were included. 87% were having their first acute myocardial infarction. Different thrombolytic regimens were applied in the emergency room but the vast majority (92%) received t-PA. The median delay between the onset of pain and admission was 2 h 0 min (10 min-22 h). The median admission to treatment time was 40 min (5 min-6 h 20 min). The latter has been shortened (median 55 min from 1986 to 1989 versus 35 min from 1990 to 1995, p < 0.05) during the study period. The rate of intracerebral hemorrhage was 2.4% (confidence interval 1.1-3.5%) and no significant predictor could be found, although patients with cerebral bleeding tended to be slightly older (66 +/- 9 years vs 61 +/- 13 years, p = ns). The rate of false diagnosis was only 4.6%, even when patients with a final diagnosis of unstable angina and/or aborted acute myocardial infarction were included. The in-hospital mortality was 8.8%, a rate similar to those reported in the literature. Using multivariate analysis, negative prognostic factors were higher age (p < 0.001), advanced Killip class at admission (p < 0.001) and elevated peak CPK levels (p < 0.001). These results confirm that thrombolysis for acute myocardial infarction in the emergency room can be done with a short admission-to-treatment time and with an acceptably low rate of false diagnosis. However, our intracerebral hemorrhage rate was clearly higher than generally reported in the literature and may be explained by a different patient selection from that in large randomized studies.
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