EGS Flashcards
What bleeding rate for GI bleeds can be detected by angiography?
0.5mL/hr
What bleeding rate for GI bleeds can be detected by technetium99?
0.1mL/hr
For GI bleeds which is more specific for localizing angiography or Tc-99?
angiography
For GI bleeds which is more sensitive angiography or Tc-99?
technietium99
What are the two most common reasons for GI bleed?
-erosive gastritis (was more common prior to PPIs)
-duodenal/gastric ulcers (together make 55%)
What is the most common cause of a LGI bleed?
an UGI bleed
What is the risk of rebleeding if EGD finds a pulsatile bleeding ulcer?
85%
What is the risk of rebleeding if EGD finds a nonbleeding visible vessel?
40-50%
What is the risk of rebleeding if EGD finds an adherent clot on an ulcer?
20-30%
What is the risk of rebleeding if EGD find an oozing ulcer without a visible vessel?
< 20%
What is the risk of rebleeding if EGD finds a flat blood spot at the base of an ulcer?
< 10%
What is the risk of rebleeding if EGD finds a clean based ulcer?
< 5%
What is the rebleed rate for UGI bleed when treated with angiography?
up to 50%
When controlling a posterior duodenal bleeding ulcer where should the 3 sutures be placed?
superior, inferior, and to patient’s left (to get transverse pancreatic artery)
-use vicryl UR6
What nonselective beta-blocker should be used in patients w/ esophageal varices?
-carvedilol (now)
-propranolol (historically)
