Causes of upper GI bleed include all except :
**Core Concept**
The upper gastrointestinal (GI) tract is a common site for bleeding due to various causes, including peptic ulcer disease, esophageal varices, and Mallory-Weiss tears. The pathophysiology of upper GI bleeding involves mucosal erosion, ulceration, or rupture of blood vessels in the esophagus, stomach, or duodenum.
**Why the Correct Answer is Right**
Upper GI bleeding can be caused by several factors, including:
- Peptic ulcer disease, which is often a result of Helicobacter pylori infection or nonsteroidal anti-inflammatory drug (NSAID) use.
- Esophageal varices, which are enlarged veins in the esophagus that can bleed due to portal hypertension.
- Mallory-Weiss tears, which are tears in the mucous membrane of the lower esophagus or upper stomach that can occur due to vomiting, retching, or coughing.
- Gastroesophageal reflux disease (GERD), which can cause erosive esophagitis and bleeding.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not provided.
**Option B:** This option is not provided.
**Option C:** This option is not provided.
**Clinical Pearl / High-Yield Fact**
One of the most important aspects of managing upper GI bleeding is identifying the underlying cause, as this guides treatment and prevents recurrence. For example, patients with peptic ulcer disease may require proton pump inhibitor (PPI) therapy and eradication of H. pylori, while those with esophageal varices may require endoscopic variceal ligation or beta-blocker therapy.
**Correct Answer:** D.