Intro Flashcards
what is peptic ulcer disease?
peptic ulcer diseases are chronic ulcerative lesions that occur in any part of the Gastro intestinal tract exposed to aggressive action of acid peptic juices.
what are the acid peptic diseases
peptic ulcer disease
Gastro esophageal reflux disease stress related ulcer
Pathogenesis
imbalance between defensive factors and aggressive factors of GIT
what are the defence mechanism
surface mucus secretion
Bicarbonate secretion into mucus increased mucocell blood flow that washes out H+
apical surface membrane transport regenerative capacity of lining epithelium elaboration of prostaglandin that increases mucus secression blood flow epithelial regeneration
what are the damaging forces
gastric acidity
pepsin
b i l e
n s a i d
steroid
cigarette
alcohol
deodeno- gastric Reflux
Helicobactor pylori
cause of p u d
helicobacter pylori
n s a i d
increased gastric HCL secretion
inadequate mucosal defence against HCL
Physiology of acid secretion
Common sites for peptic ulcer
first part of duodenum stomach
Gastro esophageal Junction
within the margins of a Gastro-jejunostomy
throughout the GIT in zollingar Ellison syndrome
within or adjacent to illial meckels diverticulum