GASTROENTEROLOGY ARTICLE OF THE WEEK
April 15, 2004
Elta GH. Urgent endoscopy for acute lower GI bleeding. Gastrointest Endosc 2004;59:402-08.
In diverticular bleeding, approximate rates of spontaneous cessation of bleeding and recurrence respectively are:
a. 50%, 20%
b. 80%, 50%
c. 80%, 30%
d. 50%, 50%
True or False
2. The advantages of urgent colonoscopy for LGIB have been documented in randomized controlled trials.
3. Ischemic colitis is possibly the second most common cause of LGIB.
4. Urgent colonoscopy yields definitive location of bleeding in over 50% of patients.
5. Angiography has a better diagnostic accuracy than urgent colonoscopy in the evaluation of patients with lower GI bleeding.
6. Only 5% of patients that present with lower GI bleeding have an upper GI source.
7. In the case of active bleeding located by arteriography, selective intra-arterial infusion of vasopressin is the recommended therapy.
8. Surgical mortality for subtotal colectomy in cases of continued bleeding is about.
9. The complication rate of urgent colonoscopy is 1.3%
10. Massive LGIB is an indication for urgent, unprepped colonoscopy