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Chronic total occlusion (CTO) of the left main coronary artery (LMCA) is an infrequent finding. Revascularization is recommended in the presence of demonstrated viability or ischemia. Coronary artery bypass grafting (CABG) has long been considered the preferred option. Patients with previous CABG due to LMCA disease with occlusion of one graft and progression of the LMCA to CTO constitute a special population, as just one ischemic artery remains. For these patients, there is no other option for revascularization other than cardiac surgery (requiring resternotomy) or percutaneous coronary intervention (PCI) of the LMCA.

revista portuguesa de cardiologia

Percutaneous coronary intervention due to chronic total occlusion in the left main coronary artery after bypass grafting: A feasible option in selected cases