Flashcards in Vascular GI Diseases (Tombazzi and Nichols) Deck (52)
upper or lower acute GI bleed is more common
epidemiology of acute upper GI bleed
men and the elderly
T or F: most acute upper GI bleeding requires intervention
F: 80% are self limiting
causes of acute upper GI bleed
Gastritis and duodenitis
Endoscopy can predict the risk of re-bleeding in duodenal ulcers. what finding on endoscopy is assc with the greatest risk of re-bleeding? lowest?
duodenal ulcers located ___ are most likely to bleed and rebleed
high on lesser curvature of stomach (how is this a duodenal ulcer, but whatevs?) and inferior wall of the duodenal bulb
are gastric or duodenal ulcers more likely to bleed
esophageal varcies are often secondary to
portal HTN and cirrhosis
**Predictive factors fro bleeding include size and grade of liver dysfunction
treatment for esophageal varices
Gastric varices may occur as a result of ...
plenic vein thrombosis resulting from pancreatitis or pancreatic malignancy
caused by forceful gastric mucosa prolapse with retching
Treatment of Mallory Weiss Tear
80-90% spontaneously resolve so only need to stabilize patient
What infections can cause upper GI bleed
CMV and Herpes
What is the most common cases of acute lower GI bleeding
diverticulosis and angiodysplasia
What is the most common cases of chronic lower GI bleeding
hemorrhoids and neoplasia
What causes the bleeding in diverticulosis
results from penetration of a colonic artery into the dome of a diverticula
What is angiodysplasia?
degenerative change in blood vessels (become tortuous and dilated) then then bleed
Where in the GI tract does angiodysplasia typically occur?
cecum and right colon
**usually multiple of them at once
angiodysplasia can be secondary to...
advanced age, chronic renal failure, prior radiation (if in rectum), watermelon stomach, osler-weber-rendu
what are hemorrhoids
a real pain in the ass!! badadum...
Variceal dilations of anal and perianal venous plexus
hemorrhoids develop secondary to
persistent elevated venous pressure