Abstract
6497 consecutive patients who underwent coronary angiography in our institution in a three-year period were analysed. Spontaneous coronary artery dissection was noted in five, and unexpected dissection secondary to coronary arteriography in three patients.All patients with spontaneous dissection presented clinically as myocardial infarction.Three patients (two of them with spontaneous dissection) underwent urgent coronary artery bypass grafting. Percutaneous coronary intervention was successful in two patients with spontaneous and in one with unexpected secondary dissection. One patient with spontaneous and one with secondary dissection were treated medically after failed intervention. In conclusion, spontaneous coronary artery dissection is rare, but not exceptional. Its true incidence might have been underestimated before the advent of coronary interventions in acute myocardial infarction. Survival of all our patients, in contrast to earlier reports on mortality rates up to 50%, may be attributed to the benefits of modern surgery and interventional cardiology.
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