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  • Title: [Cigarette smoking and acute myocardial infarct].
    Author: Trappolini M, Matteoli S, Chillotti FM, Curione M, Del Vecchio LR, Puletti M.
    Journal: Minerva Cardioangiol; 1996 Dec; 44(12):609-16. PubMed ID: 9053813.
    Abstract:
    UNLABELLED: Cigarette smoking is commonly considered as a major risk factor for Acute Myocardial Infarction (AMI). Although AMI has a high incidence in smokers, it doesn't seem to correlate with a worse in hospital prognosis. In order to investigate if cigarette smoking does affect the in-hospital prognosis in patients with AMI, 590 consecutive patients (451 males and 139 females; mean age 63.4 years) admitted to the Coronary Care Unit (CCU) with definite AMI have been studied. Patients were divided in two groups: Group A (303 patients, 269 males and 34 females) smokers till AMI and Group B (287 patients, 182 males and 105 females) nonsmokers or smokers till a month before AMI. RESULTS: The mean age of nonsmokers was higher than smokers (68.4 years vs 58.8 years; p < 0.001). In addition they showed more frequently hypertension (48.8% vs 38%; p < 0.001), diabetes (31.3% vs 16.3%; p < 0.001), and healed infarction or angina (45.6% vs 37.5%). Among Group B higher global mortality rate was observed (22.6% vs 7.6%; p < 0.001) either among thrombolysed patients (10.1% vs 4.4%; p < 0.001) either among not thrombolysed (26.9% vs 4.4%; p < 0.001). The grading in age classes confirmed a higher mortality in nonsmokers patients (6.7% vs 4.9% age > or = 40 and < or = 65 years; 32.5% vs 13.3% > 65 years). They also presented more frequently arrhythmias (15.3% vs 12.2%), ischemic complications (25.4% vs 18.7%), and congestive heart failure (46% vs 34.2%). CONCLUSIONS: According to other authors the results of this study confirm a better prognosis in smokers with AMI. Up to authors hypothesis this outcome could be related either to the younger age, a to a different pathogenetic mechanism of coronaric occlusion to raised thrombosis.
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