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  • Title: [Long-term prognosis of coronary artery spasm].
    Author: Hannebicque G, Lablanche JM, Fourrier JL, Gommeaux A, Bertrand ME.
    Journal: Arch Mal Coeur Vaiss; 1990 Apr; 83(4):461-7. PubMed ID: 2111666.
    Abstract:
    This study analyses the long-term prognosis of 210 patients with coronary spasm documented at coronary angiography. All patients with a previous history of myocardial infarction or who had undergone coronary angioplasty were excluded. The average follow-up was 55 months and only 11 patients were lost to follow-up. The actuarial survival figures showed the 1 year, 2 year and 5 year survival rates to be 95, 92 and 89 per cent respectively. Extracardiac mortality was mainly related to smoking (lung cancer, laryngeal cancer, etc.) and was higher than cardiac mortality. More than half of the cardiovascular events (sudden death, myocardial infarcts) occurred during the first year of follow-up. Ten patients (4.7%) died suddenly. The predictive factors of this event were: previous syncopal episodes or syncopal angina due to coronary spasm, percritical arrhythmias and the documentation of multiple spasms at coronary angiography. Myocardial infarction was observed in 10.6 per cent of patients. Only those with significant coronary arterial lesions developed this complication. At the end of the follow-up period, 75 per cent of patients were asymptomatic or had only atypical chest pain. No significant differences were observed between the two groups treated medically, by aortocoronary bypass or by the association of coronary bypass and plexectomy with the exception of non-lethal myocardial infarcts being significantly less common in patients treated medically. Therefore, the long-term prognosis of patients with coronary spams is relatively satisfactory.
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