Q1.) Most common cause of acute mesenteric ischemia?

a) Atheromatous thrombus

b) Embolism


d) All equal

A1 a

Acute ischemia results most frequently from an embolic event severely limiting or occluding flow in the SMA. 

Acute SMA occlusion was responsible for 65% of the patients with AMI, whereas NOMI and mesenteric venous thrombosis each were responsible for 15% of the cases. Atrial arrhythmias with
atrial thrombus, post–myocardial-infarction ventricular thrombus, and valvular thrombus are all potential sources for emboli.

REF shackelford page 1077

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