Inclusion Criteria:  Signature of informed consent; Patients aged ≥18 years; diagnosis of ACS (ST-elevation myocardial infarction, non ST-elevation myocardial infarction, unstable angina), in accordance with the definition provided in the latest guidelines; diagnosis of ectasia or coronary aneurysm according to the definitions contained in this protocol, either in the culprit vessel of the SCA than in another vessel. Coronary pseudoaneurysms are excluded.  Exclusion Criteria:  impossibility or unwillingness to provide signed informed consent; contraindications to dual antiplatelet therapy; contraindications to anticoagulant therapy; active bleeding or severe anemia (Hb <6 g / dl); life expectancy <12 months; female patients with potential pregnancy;