The RITMO (Registro Italiano sul trattamento del Tronco coMune non protettO) observational study will be a prospective, multicenter, observational study aiming to appraise the prevalence, management strategy, and prognosis (up to 5 years) of unprotected left main coronary artery disease in Italy. A total of 45 Italian secondary and tertiary care centers will participate, and enroll patients during a period of 12 to 18 months. Patients will be included provided that they complete a written informed consent form and significant unprotected left main coronary artery disease is established at diagnostic coronary angiography. The primary end-point will be the 12-month rate of major adverse cerebro-cardiovascular events (ie death, myocardial infarction, stroke, or coronary revascularization).
The RITMO (Registro Italiano sul trattamento del Tronco coMune non protettO) observational study will appraise the prevalence, management strategy, and prognosis of unprotected left main coronary artery disease in Italy.