large bowel obstruction

Question 1

Percentage of intestinal obstruction cases that involve large bowel?

Answer 1

25-40% of all cases

Question 2

Causes of large bowel obstruction? (3)

Answer 2

Malignancy (90%)
Volvulus- mostly sigmoid colon, children
Intussusception (bowel telescopes in on itself -> most common in children)

Question 3

Symptoms of large bowel obstruction? (4)

Answer 3

First constipation
Then vomiting
Gross distension + pain
Hyperactive, then normal, then absent bowel sounds