Stomach Disorders Flashcards
etiology of gastritis
- erosive
2. non erosive
what are causes of erosive gastritis
NSAIDS (MC)
ETOH
mental or physical stressors (trauma, post-op)
what are causes of non erosive gastritis
H pylori (MC)
pernicious anemia
CMV (AIDS)
Candida (DM)
what is H pylori
- gram neg rod transmitted person to person, infects sub mucosal gastric layer
- can survive in acidic environments thur high urease activity that converts urea into alkaline ammonia and carbon dioxide
what is pernicious anemia
autoimmune disorder of fundic glands, B12 absorption deficiency
PE findings in erosive gastritis
complaints include anorexia, pain, N/V, hematemesis (coffee ground or bright red), exam may reveal epigastric tenderness
PE findings in non-erosive gastritis
nonspecific hx
pt may have nausea and pain for short period then be asymptomatic until ulcer or CA formation
DDx of gastritis
- ulcer (w/ or w/o perforation)
- reflux
- CA
- viral GE
- TAA/AAA
- biliary/pancreatic dz
- esophageal rupture
- gastric volvulus or gastroparesis
- MI/angina
tx of gastritis
specific to causative etiology
- stress: prophylaxis or tx with H2 blocker or PPI
- NSAID: discontinue, PPI’s more effective than H2’s 2-4wks
- Alcoholic: discontinue ETOH, H2, PPI or sucralfate x 2-4wk
- H pylori: re test 4 wks after completion of 1 of following
triple therapy for gastritis
PPI, clarithromycin 500mg, amox or metronidazole 500mg, all BID x 10-14days
quadruple therapy for gastritis
PPI or H2 BID, bismuth QID, metronidazole 250mg QID & tetracycline 500mg QID x 10-14 days
examples of H2s
cimetdine, famotidine, nizatidine, ranitidine
examples of PPIs
pantoprazole, esomeprazole, omeprazole, lansoprazole
definition of peptic ulcer dz
erosion in gastric or duodenal mucosa >5mm through msucularis
epidemiology of peptic ulcer dz
10% lifetime prevalence in adult population
male slightly greater than female
duodenal (30-5yo) 5:1 vs gastric (55-70yo)
etiology of PUD
NSAID use, H pylori, smoking - increases acid decresaes bicarb = greatest risk factors
ETOH diet and stress = not causative
hx for PUD
epigastric pain abrupt or gradual more common at night
nausea and anorexia
pain may increase with eating
duodenal ulcer pain subsides with eating = returns 2-4hrs postprandial
w/u of PUD
same as gastritis
endoscopy most useful
% of population infected with H pylori
30-40%
H pylori is transmitted via
oral-oral, fecal -oral, gastric-oral
stool quality with H pylori
may be loose
what makes eradication of H pylori difficult?
smoking