Evaluation of NT-proBNP in Chronic Inflammatory Bowel Disease

Inclusion Criteria: * Adult subjects (age 18 years) * MICI Group: Patients monitored for probable HC or MC * Control group: Patients referred for consultation in gastroenterology with a clinical and endoscopic picture eading to the diagnosis of TF I * Person who agreed to participate in the study * Patient covered by social insurance Exclusion Criteria: * Causes of increased concentrations of natriuretic peptides: acute heart failure, acute or chronic pulmonary disease with right ventricular repercussion, valvulopathies, primary or secondary HVG, atrial fibrillation cardiac arrhythmia, chronic systolic dysfunction, hyperthyroidism, Addison's disease, hyperaldosteronism Primary, diabetes, cirrhosis with ascites, cancers, chronic renal insufficiency. * Inflammatory and autoimmune diseases (excluding MC and RCH), chronic inflammatory syndrome * Ongoing treatment that may affect the concentration of natriuretic peptides: ACE inhibitor, angiotensin II receptor antagonists, diuretics * Patient deprived of liberty or protected major (under guardianship or curatorship)