PubMed · 14260914
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H HECK. 1965-02-12. [DISSECTING ANEURYSM].. https://pubmed.ncbi.nlm.nih.gov/14260914/
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Spontaneous coronary artery dissection is a rare cause of acute coronary syndrome or sudden death. Typically it affects young women during the peripartum period and those using oral contraceptives. The pathophysiology remains unclear, but an eosinophilic periadventitial inflammation has been commonly observed in such cases. Unlike atherosclerotic intimal dissection, the dissection plane in the spontaneous dissection lies within the media or between the media and adventitia. Due to the rarity of the condition, the optimal management of the spontaneous coronary artery dissection has not been established and it may range from conservative medical treatment to percutaneous or surgical interventions depending upon the anatomy of the dissection, compromise of the vessel lumen and the clinical circumstances. The reported prognosis varies widely. Spontaneous coronary artery dissection should be considered in the differential diagnosis in young persons with precordial chest pain, especially women in the peripartum state and those using oral contraceptives. The clinical perspectives of the primary spontaneous coronary artery dissection are elaborated.
Catheter-induced coronary artery dissection and occlusion is a rare but serious complication of diagnostic cardiac angiography. A 50 year-old man presented with unstable angina. ECG, exceptional of bradycardia, was normal (57 beat/min). Selective coronary angiography demonstrated 98% narrowing in the mid-portion of the left anterior descending coronary artery (LAD). During the right coronary angiography, following catheter manipulation in the vicinity of the aortic valve, the patient complained of severe chest discomfort, and he had electrocardiographic evidence of acute inferior wall myocardial infarction. Right coronary artery (RCA) was free of the significant obstruction, and it was observed to be having a dominant artery with a spiral dissection (NHLBI Grade IV) located between ostium and the proximal portion of the posterior descending and posterolateral artery bifurcation. The patient was immediately operated with off-pump coronary artery bypass surgery. Consequently, iatrogenic right coronary dissection that is a very rare condition as a cause of myocardial infarction, is discussed in this case report.
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