Gastric Disorders Flashcards
Acute Gastritis can be caused by 3 things, what are they?
NSAIDS Burns (curling ulcer) Brain Injury (cushing ulcer)
How do Burns cause Acute Gastritis?
Burns=>decreased plasma volume => sloughing of gastric mucosa
How do Brain Injury cause Acute Gastritis?
Brain Injury=>Increased ICP=>Increased vagal stimulation=>ACh=>H+ production
Chronic Gastritis is due to?
Autoimmune and Hpylori=>inflamming the stomach
Acute gastritis is due to?
Acid burning the stomach
Acute gastritis can do damage in two ways?
- increase acid 2. decrease protection
Where does Type A (1st) chronic gastritis occur?
1st part Stomach (fundus/body)
Where does Type B (2nd) chronic gastritis occur?
2nd part=>antrum
Type A cause?
Due to Autoantibodies to parietal cells
Autoantibodies to parietal cells, pernicious Anemia, and Achlorhydria
Type A
MCC of Vit. B12 def?
Type A Chronic Gastritis
Type A chronic gastritis complication?
Adenocarcinoma
Most common type of Chronic Gastritis?
Type B
Where does Type B occur?
Antrum
Pathogenesis of Type B?
H. pylori=> urease/protease=weakens mucosal surface