A total of 200 patients, allocated to 50 patients with chronic coronary syndrome, 75 patients with non-ST elevation myocardial infarction and 75 patients with ST- elevation myocardial infarction will be included. Clinical information, blood samples and fecal samples will be collected. Fecal and blood samples will be collected once in patients With chronic disease and in patients with acute coronary syndrome; in the acute phase and after 3 months.
Define a signature of gut microbiota composition and related metabolites in patients with ST-elevation myocardial infarction, non ST-elevation myocardial infarction and chronic coronary disease (CAD).