A 52-year-old man from Delhi presents with a 3-month history of epigastric pain relieved by food and antacids. He reports black tarry stools for the past 2 weeks and mild dyspnea on exertion. On examination, he appears pale; BP 110/70 mmHg, HR 92/min. Hemoglobin is 8.2 g/dL (MCV 72 fL), and fecal occult blood test is positive. Upper GI endoscopy reveals a 1.5 cm ulcer on the anterior wall of the first part of the duodenum with a visible vessel at the base. Which of the following is the most likely complication that has occurred?

Explanation

## Clinical Presentation Analysis The patient presents with classic features of peptic ulcer disease complicated by **chronic gastrointestinal bleeding**: ### Key Clinical Features - **Chronic blood loss**: Black tarry stools (melena) for 2 weeks indicate ongoing GI bleeding - **Iron deficiency anemia**: Hemoglobin 8.2 g/dL with microcytosis (MCV 72 fL) is pathognomonic for chronic iron loss - **Dyspnea on exertion**: Compensatory response to reduced oxygen-carrying capacity from anemia - **Endoscopic finding**: Visible vessel at ulcer base indicates recent/ongoing hemorrhage ### Why This Is Hemorrhage, Not Other Complications **Key Point:** Duodenal ulcers on the anterior wall typically erode into the gastroduodenal artery, causing chronic or recurrent bleeding rather than perforation. Posterior wall ulcers perforate into the pancreas. **High-Yield:** The **visible vessel** at endoscopy is a stigma of recent hemorrhage and carries high risk of rebleeding (50% if untreated). This is a Forrest classification Ia–Ib lesion. ### Pathophysiology of Hemorrhage in PUD | Complication | Presentation | Endoscopic Finding | Location Predilection | |---|---|---|---| | **Hemorrhage** | Melena, hematemesis, anemia | Visible vessel, arterial spurting | Anterior duodenum (GDA), lesser curve stomach | | Perforation | Acute peritonitis, pneumoperitoneum | Perforation site | Anterior duodenum/antrum | | Obstruction | Vomiting, weight loss (chronic) | Edema/scarring at pylorus | Pyloric channel | | Malignancy | Alarm features, weight loss | Irregular ulcer | Gastric ulcers (not duodenal) | **Clinical Pearl:** Duodenal ulcers rarely undergo malignant transformation (< 1% of cases), whereas gastric ulcers carry a 2–3% risk of harboring malignancy. **Mnemonic: CHOP** — Complications of Peptic Ulcer Disease: - **C**hronic bleeding (hemorrhage) - **H**ole (perforation) - **O**bstruction (gastric outlet) - **P**enetration (into adjacent organs) ### Management Implications The visible vessel requires urgent intervention: 1. **Endoscopic hemostasis**: Injection (epinephrine), thermal coagulation, or clip placement 2. **PPI therapy**: High-dose IV omeprazole (80 mg bolus, then 8 mg/hr infusion) to reduce rebleeding 3. **H. pylori testing** and eradication (if positive) 4. **Iron supplementation**: To correct the iron deficiency anemia [cite:Robbins 10e Ch 17]