Lecture 4: Disorders of the Stomach Flashcards
Define dyspepsia.
Epigastric fullness or burning, early satiety, nausea, postprandial fullness.
Hallmark sign of a stomach disorder.
What is the hallmark sign of GERD and a stomach disorder?
- GERD: Heartburn
- Stomach Disorder: Dyspepsia
Define gastropathy.
A condition with epithelial or endothelial damage.
Define gastritis.
Condition with histological inflammation
What are the two categories of gastritis?
- Erosive/hemorrhagic (acute)
- Non-erosive
What medication most commonly causes erosive gastritis?
NSAIDs
What are the common etiologies of erosive gastritis?
- Medications (NSAIDs esp)
- Alcohol
- Stress
Why do NSAIDs cause gastritis?
Inhibition of COX-1 prevents mucus production.
What is the pathophysiology behind stress-related gastritis?
Inadequate gastric mucosal blood flow during periods of intense physiologic stress.
What is the most common clinical manifestation of erosive gastritis?
Upper GI bleeding, aka hematemesis or melena or coffee ground emesis.
How do we diagnose erosive gastritis?
EGD within 24 hours of admission.
What medication added to a PPI can assist with treating erosive gastritis?
Sucralfate suspension
What is used to suppress acid secretion to help with erosive gastritis?
Pantoprazole IV 80mg bolus + 8mg/hr infusion
If a patient with NSAID gastritis still needs a NSAID, what might be a good alternative?
Celebrex, which is a COX-2 inhibitor.
What is the best way to prevent and heal gastritis?
PPIs (Omeprazole 20-40mg PO daily for 2-4 weeks)
For critically ill patients, what should we do if they have risk factors for GI bleeding?
Prophylactic PPIs.
What are the common etiologies for NON-erosive gastritis?
- H. pylori
- NSAIDs
- Autoimmune gastritis
- Can be acute or chronic
What does H. pylori look like?
Spiral, G- bacteria.
Who does H. pylori infection occur in most commonly?
Children in crowded areas with poor sanitation
What does a H. pylori infection do?
- Inflammatory response
- Release of PMNs and lymphocytes
- Gastric mucosal inflammation, making it more susceptible to damage.
What does a history of H. pylori infection increase the risk of?
Gastric cancer
How does nonerosive gastritis typically present?
- Dyspepsia/epigastric discomfort
- N/V
- Anorexia
Often, it is clinically SILENT.
No bleeding like in erosive
How do you diagnose nonerosive gastritis?
Histological biopsy of goblet cells/Paneth cells via EGD.
What ethnicities are most susceptible to gastric metaplasia?
- Hispanics
- African Americans
- Native Americans
All the non-north americans simplified