Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies

Gastric ulcers cause burning or gaseous discomfort in the epigastrium shortly after meals when the stomach is full. Duodenal ulcers produce cramp-like pain in the mid-epigastric region 2-3 hours after eating, when the stomach is empty. This timing difference occurs because duodenal ulcer pain develops when stomach acid directly contacts the ulcer, while gastric ulcer pain is triggered by increased acid production during digestion.

Vomiting in peptic ulcer disease stems from gastric outlet obstruction, which can result from pyloric muscle spasms, mechanical obstruction from scarring, or acute swelling around the ulcer. These obstructions prevent normal stomach emptying and trigger the vomiting reflex. The severity of obstruction determines whether vomiting occurs occasionally or becomes a frequent symptom.

Sudden, intense upper abdominal pain radiating to the shoulder, accompanied by extreme tenderness, indicates a perforated peptic ulcer. This is a medical emergency where the ulcer erodes completely through the stomach or duodenal wall, allowing gastric contents to spill into the peritoneal cavity. Immediate clinical intervention is required to prevent serious complications.

Endoscopy allows direct visualization of the gastrointestinal tract, enabling clinicians to identify the exact location of the ulcer and assess inflammatory changes. When endoscopy is not feasible, a barium contrast study serves as an alternative diagnostic tool to detect ulcers and identify gastric outlet obstruction. Both methods provide critical information for confirming peptic ulcer disease diagnosis.

H. pylori infection is diagnosed through multiple methods: biopsy of the antral mucosa with rapid urease testing, serologic testing for antibodies, stool antigen tests, and urea breath tests. Rapid urease testing detects urea, a byproduct of H. pylori metabolism. These diverse testing options allow clinicians to select the most appropriate diagnostic approach based on patient presentation and clinical circumstances.

Patients with peptic ulcer disease may experience sour eructation, bloating, early satiety, pyrosis (heartburn), constipation or diarrhea, and bleeding manifested as hematemesis or melena. These nonspecific symptoms vary among individuals and reflect the broader gastrointestinal irritation caused by the ulcer. Physical examination may reveal epigastric tenderness or abdominal distention.

Consuming antacids or eating alleviates duodenal ulcer pain by neutralizing stomach acid and promoting faster stomach emptying, reducing ulcer irritation. Conversely, eating may not relieve gastric ulcer pain and could worsen it, since food stimulates increased acid production by the stomach. This differential response to food intake is a key clinical distinction between the two ulcer types.