3. Pathology of the Stomach Peptic Ulcer & Gastric Malignacies Flashcards
Part 1
H. pylori and NSAIDs can lead to what?
peptic ulcer - impalance/impairment in mucous production
normal gastric and duodenal mucosa is protected from digestive actions of pepsin and acid by
secretion of mucous
production of bicarbonate
removal of excess acid by normal blood flow
rapid renewal and repair of epithelial cell injury
peptic ulcers are commonly associate with what disease
chronic gastritis
what are common symptoms of peptic ulcers?
gnawing or burning pain
bloating
nausea and vomitting
unintentional weight loss
loss of appetite
what are common complications of peptic ulcers?
progressive dysphagia
iron deficiency anemia
perforations
hemorrhage
melena (black stools for bleeding)
Describe the histology of peptic ulcers
Fibrinous ulcer exudate
zone of granulation tissue
zone of fibrosis
muscularis propria
What are the two way to diagnose a peptic ulcer
endoscopic evaluation +/- biopsy (Forrest classification)
H. Pylori test (stool and breath test)
Stages of the Forrest classification
Ia, Ib, IIa, IIb, IIc, III
(Forrest Classification) Ia
spurting bleed
rapid, very dangerous, life-threatening
(Forrest Classification) IIb
adherent clot
very dark
(Forrest Classification) IIc
flat spot ulcer crater
black spot is indicative of necrosis and the tissue is dead
(Forrest Classification) III
clean base ulcer
still see debris and necrotic tissue but still see a clot
cleanest type of ulcer
(Forrest Classification) Ib
oozing bleed
most common than other stages
blood loss in capillaries
(Forrest Classification) IIa
non-bleeding visible vessel
very visible vessels
Medical management of peptic ulcer
PPI
H2-receptor blockers
antibiotics in the case of H. pylori
Surgical management of peptic ulcer
endoscopic
partial gastrectomy (or full depending on stage)
selective vagotomies
what is selective vagotomies
surgical cutting of the vagus nerve to reduce acid secretion in the stomach
What is partial gastectomy
connect stomach with small intestine
For peptic ulcers, what foods should be avoided?
consumption of :
alcohol (beer, wine, )
caffeine
spices
For peptic ulcers, why should alcohol be avoided
it can cause superficial mucosal damage
increase gastric secretions
For peptic ulcers, why should coffee be avoided
caffeine stimulates acid secretion
decaffeinated coffee also has the same effect because of other ingredients that lead to further irritation
For peptic ulcers, why should spices be avoided
increase gastric secretion
cause small erosions and inflammation of the mucosal lining
For peptic ulcers, what are misconceptions
milk for ulcers (not a buffer for gastric secretion)
pH for food has little therapeutic importance
For peptic ulcers, what are nutritional management techniques
consume a high-quality diet (nutrient-dense)
frequent small meals
not eating 2-3hrs before sleeping