Peptic Ulcer Disease III: Clinical Manifestations and Complications

Duodenal ulcer pain typically develops 2 to 3 hours after meals or during the night and is relieved by food or antacids, following a "pain-food-relief" pattern. Gastric ulcer pain usually begins shortly after eating and is not relieved by food, often worsening with intake. This leads to early satiety, anorexia, and weight loss in gastric ulcers, whereas duodenal ulcers may result in weight maintenance or gain.

Gastrointestinal bleeding in peptic ulcer disease presents as vomiting blood, called hematemesis, or as black, tarry stools, known as melena. Bleeding is the most common complication of peptic ulcer disease and can develop in both gastric and duodenal ulcers. It may occur suddenly and requires immediate medical attention.

Perforation involves full-thickness erosion of the gastric or duodenal wall, leading to peritonitis and severe abdominal pain. This complication causes a rigid abdomen and shock due to peritonitis, making it the most life-threatening complication of peptic ulcer disease. Perforation is a medical emergency that may require surgical intervention.

Gastric outlet obstruction results from chronic inflammation or scarring of the gastric or duodenal wall. This obstruction causes abdominal bloating, vomiting of undigested food, and decreased appetite. It develops gradually over time and represents a serious complication requiring medical or surgical management.

Some patients with peptic ulcer disease remain asymptomatic until complications like bleeding or perforation emerge, particularly those using NSAIDs or anticoagulants. These medications can mask pain or accelerate ulcer progression without warning signs. This makes regular monitoring important for high-risk patients to prevent serious complications.

Gastric ulcers carry a risk of malignancy that may be elevated in patients who continue long-term proton pump inhibitor therapy after Helicobacter pylori eradication. This risk requires careful monitoring and follow-up evaluation. Both types of ulcers require ongoing surveillance, especially if large or complicated.

Both gastric and duodenal ulcers cause epigastric discomfort and may present with heartburn, eructation, vomiting, and altered bowel habits. However, the timing and relationship to food intake differ significantly between the two types. Shared complications include gastrointestinal bleeding, perforation, and gastric outlet obstruction, all requiring urgent medical attention.