This is a medical study note or lecture handout on peptic ulcers, written for medical or dental students. It defines peptic ulcer as a defect through the muscularis mucosa caused by acid-peptic juices, and lists locations including duodenum, stomach, esophagus, and jejunum. The etiology section covers H. pylori infection (gram-negative, urease-producing, transmitted faeco-oral or oral-oral) and…
This is a medical study note or lecture handout on peptic ulcers, written for medical or dental students. It defines peptic ulcer as a defect through the muscularis mucosa caused by acid-peptic juices, and lists locations including duodenum, stomach, esophagus, and jejunum.
The etiology section covers H. pylori infection (gram-negative, urease-producing, transmitted faeco-oral or oral-oral) and NSAID-induced ulcers via COX-1 inhibition reducing prostaglandins and mucosal barrier. Other factors include smoking, reflux, gastrinoma, male predominance, familial tendency, and blood group O.
Symptoms are described by location: duodenal ulcers cause hunger and night pain relieved by food or antacids; gastric ulcers cause pain 0.5-1 hour after meals relieved by fasting. Additional symptoms include nausea, vomiting, GI bleeding, appetite change, heartburn, and episodic pain.
The differential diagnosis lists pancreatitis, cholecystitis, GERD, gastric cancer, and inferior wall MI. Complications include hemorrhage (hematemesis, melena, anemia), fibrosis/obstruction, perforation (more common in DU), and penetration.
Treatment is divided into lifestyle changes (avoid NSAIDs, stop smoking) and medical therapy: antacids, H2 blockers (ranitidine, famotidine), proton pump inhibitors (omeprazole, pantoprazole, lansoprazole), and H. pylori eradication regimens including first-line triple therapy and quadruple therapy with bismuth.
The final section covers dental care considerations: check platelet count before procedures, avoid aspirin, minimize stress, avoid steroids, watch drug interactions with antacids, manage xerostomia, note harmless black tongue from bismuth, and recognize that NSAIDs for dental pain can cause ulcers.