Plasma i-FABP as Predictor for Irreversible Bowel Ischemia

Inclusion Criteria: * Presence of acute mesenteric ischemia due to stenosis of the superior mesenteric artery, thromboembolization of the superior mesenteric artery, non-occlusive mesenteric ischemia or acute portal vein thrombosis (as confirmed by CT scan) * The vascular anatomy is suitable for percutaneous revascularization * A primary endovascular re-vascularisation approach is intended based on an interdisciplinary decision by the visceral surgeon, the vascular surgeon and interventional radiologist. This therapeutic decision is made independently of the proposed FARAMIS study. * A peripheral or central line is present to perform repeated blood collections Exclusion Criteria: * Clinically or imaging results indicating that perforation of the bowel is present or suspected * Hemodynamic instability (shock) * Pre-existing severe liver or kidney damage (defined as spontaneous international normalized ratio \>2 or creatinine \>2 mg/dl.) * Anemia with hemoglobin concentration \< 7g/dl * Pediatric patients