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GI diseases
Diseases of the Esophagus and Stomach
| Question | Answer |
|---|---|
| Name and describe the two types of gastritis? | Erosive (noxious irritants, serious illness) and nonerosive (infectious, gastric mucosal atrophy) |
| What is the leading cause of ulcers not caused by NSAIDS? | Infection wtih Helicobacter pylori |
| What is the effect of H. pylori on the gastric wall? | H. pylori colonizes deep layers of mucosa and disrupts protective properties of mucus |
| What layers of the stomach wall are involved in acute erosive gastritis? | Superficial erosions of the mucosa and some bleeding from the submucosa |
| What is the pathogenesis of Acute erosive gastritis? | NSAIDS, alcohol, acute stress, viral infections, radiation |
| What is the pathogenesis of nonerosive gastritis? | Infection, atrophy, hemmorhage |
| What is the relationship between gastric atrophy and pernicious anemia? | loss of production of intrinsic factor needed to make and absorb Vit B12 |
| What are the protective mechanisms of the GI tract? | mucus, bicarb, blood flow |
| What is the presentation of gastritis? | burning epigastric pain, with possible radiation to the back |
| What is the pain pattern over time of gastritis? | Relieved with food, returns 1-5 hrs after eating. |
| What is the term for bright red blood in the stool? | hematochezia |
| What is the term for black tarry stools? | melena |
| What is the term for vomiting blood? | hematemesis |
| What is the presentation for chronic upper GI bleeding? | melena/hematochezia, hematemesis, dizziness, dyspepsia, wt loss |
| What are two forms of acute upper GI bleed? | Mallory-Weiss tear, esophageal varices/rupture (more common in alcoholics) |
| Define Mallory-Weiss tear | laceration of distal esophagus and proximal stomach during vomiting, retching or hiccuping |