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Medical therapy or revascularization for patients with chronic total occlusion? A dilemma almost solved


Chronic total occlusion (CTO) of the coronary arteries are relatively common, observed in approximatively 15-25% of patients with coronary artery disease undergoing coronary angiography. The right coronary artery represents the most common CTO vessel, which represents about half of the CTO cases.The CTO prevalence is much higher ( 90%) among patients with prior coronary artery bypass graft (CABG), while a CTO is found in only one tenth of patients referred for ST-elevation myocardial infarction (STEMI)