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[Chronic obstructions of the left main and right coronary arteries]
V Fourchard1, L Belhassen, P Chagnon
1Service de cardiologie, hôpital de Montreuil.
Insights
This case study details chronic left main coronary artery occlusion and right coronary artery occlusion, presenting in a patient with effort angina. Despite severe blockages, myocardial perfusion was maintained by collateral circulation.
Area of Science:
- Cardiology
- Interventional Cardiology
- Vascular Biology
Background:
- Coronary artery disease (CAD) can lead to myocardial ischemia.
- Chronic occlusions in major coronary arteries pose significant clinical challenges.
- Effort angina indicates myocardial oxygen demand exceeding supply.
Abstract:
The authors report a case of chronic occlusion of the left main coronary associated with occlusion of the second segment of the right coronary artery documented at coronary angiography carried out for effort angina without previous infarction. Myocardial perfusion was preserved mainly by a marginal branch of the right coronary arising immediately before the occluded second segment and by a small branch of the left main coronary artery.