Register of treatment of unprotected left main coronary artery stenosis in Andalucia (RETRATO).
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Measure the MACE survival in the coronary-artery bypass grafting (CABG) group and in the coronary stent procedure (CSP) group, to identify the differences between both groups in the short and medium-term follow up
Timeframe: 12 months