Overview
Non-occlusive mesenteric ischemia (NOMI) is a rare and severe condition characterized by ischemia or necrosis of the intestines without vascular obstruction, leading to significant morbidity and mortality 12.Diagnosis
Clinical Presentation: Often presents with acute abdominal pain, nausea, vomiting, and signs of systemic inflammatory response 2.
Diagnostic Tests: Elevated lactate dehydrogenase (LDH), D-dimer, and markers of organ dysfunction (e.g., AST, ALT, CPK, base excess) are common 2.
Imaging: CT angiography and mesenteric Doppler ultrasound can help identify perfusion abnormalities 3.
Surgical Exploration: Often required for definitive diagnosis and management 3.Management
First-Line Treatments: Early surgical intervention for severe cases, including resection of necrotic bowel segments 3.
Adjunctive Therapies: Minimally invasive radiological approaches with catheter-directed vasodilators like alprostadil (prostaglandin) to improve mesenteric perfusion 3.
Medical Management: Supportive care including intensive monitoring, fluid resuscitation, and management of multi-organ dysfunction 13.Special Populations
Comorbidities: Chronic kidney disease (CKD), hemodialysis, elevated LDH, and low platelet count are risk factors for poor outcomes in elderly patients 1.
Elderly: Higher mortality rates noted, likely due to comorbid conditions 12.Key Recommendations
Identify and Manage Comorbidities: Focus on patients with chronic kidney disease, hemodialysis dependency, and elevated inflammatory markers for closer monitoring and aggressive management (Evidence: Moderate 1).
Early Surgical Intervention: Consider urgent surgical exploration and intervention in suspected NOMI cases to prevent progression and improve survival (Evidence: Moderate 3).
Utilize Minimally Invasive Approaches: Employ catheter-directed vasodilators such as alprostadil for patients where surgical intervention is delayed or not feasible to enhance mesenteric perfusion (Evidence: Weak 3).References
1 Minagawa Y, Ishiyama Y, Amiki M, Hirano Y. Risk Factors for 30-day Mortality After Emergency Surgery for Non-occlusive Mesenteric Ischemia. In vivo (Athens, Greece) 2025. link
2 Suzuki S, Kondo H, Furukawa A, Kawai K, Yukaya T, Shimazui T et al.. Prognostic Factors of Preoperative Examinations for Non-occlusive Mesenteric Ischemia: A Multicenter Retrospective Project Study Conducted by the Japanese Society for Abdominal Emergency Medicine. World journal of surgery 2020. link
3 Weiss G, Lippert H, Meyer F. Successful management of non-occlusive mesenteric ischemia (NOMI) - case report. Polski przeglad chirurgiczny 2012. link