Nonocclusive Mesenteric Ischemia in Aortic Surgery: What You Need to Know

Related Experiment Video

Updated: Jul 13, 2026

Reproducible Motor Deficit Following Aortic Occlusion in a Rat Model Of Spinal Cord Ischemia
08:10

Reproducible Motor Deficit Following Aortic Occlusion in a Rat Model Of Spinal Cord Ischemia

Published on: July 22, 2017

7.1K

Ali Murtada1, Matti Jubouri2, Mohamed Refaie1

  • 1Department of General Surgery, Glan Clwyd Hospital, Rhyl, UK.

Annals of Vascular Surgery
|January 25, 2025
PubMed
Abstract

Insights

Nonocclusive mesenteric ischemia (NOMI) is a serious condition often seen after cardiac surgery, causing poor intestinal blood flow. Early diagnosis and a team approach are crucial for improving patient outcomes in this high-mortality disease.

Area of Science:

  • Gastroenterology
  • Vascular Surgery
  • Critical Care Medicine

Background:

  • Nonocclusive mesenteric ischemia (NOMI), a subset of acute mesenteric ischemia (AMI), stems from mesenteric arterial vasoconstriction and reduced vascular resistance, impairing intestinal perfusion.
  • Frequently occurring post-cardiac surgery, NOMI predominantly affects elderly patients with pre-existing cardiovascular or systemic conditions, representing 20-30% of AMI cases with a substantial mortality rate of approximately 50%.

Purpose of the Study:

  • To explore the pathophysiology of NOMI.
  • To examine the clinical implications of NOMI in the context of aortic dissection.
  • To identify unmet needs in the diagnosis and management of NOMI, highlighting its prognostic significance.

Main Methods:

  • A comprehensive literature review was performed utilizing multiple electronic databases to gather pertinent data and information.

Main Results:

  • NOMI is a critical condition marked by mesenteric vasoconstriction and diminished splanchnic blood flow, often precipitated by cardiac surgery, hemodialysis, or hypotensive episodes.
  • Prevalence is high in intensive care units, with delayed diagnosis and systemic hypoperfusion contributing to elevated mortality. Risk factors include advanced age, vasopressor use, and inflammatory markers.
  • Potential early detection biomarkers like intestinal fatty acid binding protein, citrulline, and D-lactate require further clinical validation. Management strategies involve fluid resuscitation, vasodilators, and surgical intervention for bowel necrosis, with endovascular approaches showing promise in select cases.

Conclusions:

  • NOMI's pathophysiology, particularly its link to cardiopulmonary bypass and intraoperative factors, necessitates increased clinical awareness.
  • A multidisciplinary approach involving surgeons, radiologists, and anesthetists is essential for enhancing the diagnosis, management, and outcomes for patients undergoing aortic surgery.

More Related Videos

Real-Time Assessment of Spinal Cord Microperfusion in a Porcine Model of Ischemia/Reperfusion10:27

Real-Time Assessment of Spinal Cord Microperfusion in a Porcine Model of Ischemia/Reperfusion

Published on: December 10, 2020

3.4K
Multimodality Diagnosis of Mesenteric Ischemia05:07

Multimodality Diagnosis of Mesenteric Ischemia

Published on: July 21, 2023

524

Related Concept Videos

Peripheral Artery Disease V: Postoperative Nursing Management01:23

Peripheral Artery Disease V: Postoperative Nursing Management

During the postoperative period, it is crucial to focus on maintaining circulation, identifying and managing potential complications, and planning for discharge.Nursing AssessmentVital signs monitoring: Regularly monitor vital signs, including blood pressure, heart rate, respiratory rate, and temperature, to detect early signs of complications such as bleeding and infection.Circulation assessment: Monitor pulses, perform Doppler assessments, and check capillary refill, color, temperature, and...
Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
Aneurysm IV: Nursing Management01:22

Aneurysm IV: Nursing Management

Vigilant monitoring for aneurysm rupture is essential for patients undergoing aortic surgery.Preoperative Nursing ManagementContinuously monitor the patient for manifestations of aneurysm rupture, such as pallor, weakness, tachycardia, hypotension, abdominal, back, groin, or periumbilical pain, changes in consciousness, and a pulsating abdominal mass. Regularly assess the patient's peripheral pulses.Instruct the patient to consume a clear liquid diet the day before surgery and administer...