Introduction

Acute mesenteric ischaemia is typically caused by an embolism resulting in occlusion of an artery which supplies the small bowel, for example the superior mesenteric artery. Classically patients have a history of atrial fibrillation.

Epidemiology

  • Incidence: 25.00 cases per 100,000 person-years
  • Peak incidence: 70+ years
  • Sex ratio: 1:1
<1 1-5 6+ 16+ 30+ 40+ 50+ 60+ 70+ 80+

Clinical features

The abdominal pain is typically severe, of sudden onset and out-of-keeping with physical exam findings.

Management

Management
  • urgent surgery is usually required
  • poor prognosis, especially if surgery delayed