Q1.) Most common cause of acute mesenteric ischemia?
a) Atheromatous thrombus
d) All equal
AE arises frequently from cardiac sources, previously considered the most common cause of AMI, though recent studies show that AT is responsible for at least 50% of arterial AMI
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 1028