Bowel ischaemia

Question 1

3 types of bowel ischaemia

Answer 1

acute mesenteric
chronic mesenteric
ischaemic colitis

Question 2

striking feature of acute mesenteric ischaemia

Answer 2

pain out of proportion with physical findings

Question 3

pathology of acute mesenteric ischaemia

Answer 3

embolism, thrombus, insufficient blood flow due to hypotension

Question 4

symptoms

Answer 4

acute -> sudden severe abdo pain

chronic -> abdo pain after eating, unintentional weight loss, vomiting

Question 5

diagnosis

Answer 5

CT angiography

Question 6

mortality if diagnosis of acute mesenteric ischaemia is missed…

Answer 6

90%!!!!!. with rx, mortality is still 50-90%

Question 7

what is chronic mesenteric ischaemia caused by

Answer 7

atherosclerotic disease of vessels supplying the intestine. aka intestinal angina!

Question 8

what is ischaemic colitis

Answer 8

type of mesenteric schaemia. Compromise of blood circulation supplying the colon. could be thrombosis, emboli, decreased CO, shock, trauma

there is a watershed area at splenic flexure

Question 9

where is pain most common in ischaemic colitis

Answer 9

left iliac fossa

Question 10

ABG finding in mesenteric ischaemia

Answer 10

metabolic acidosis