A 52-year-old man with decompensated cirrhosis presents with hematemesis and melena. Upper endoscopy reveals bleeding varices. What is the most common site of variceal bleeding in cirrhotic patients?

Explanation

## Most Common Site of Variceal Bleeding in Cirrhosis **Key Point:** Esophageal varices account for approximately 80–90% of all variceal hemorrhage in cirrhotic patients, making them the most common site of bleeding. ### Pathophysiology of Variceal Formation Portal hypertension (portal pressure >12 mmHg) drives the development of portosystemic collaterals. The esophagus is the most frequent site because: 1. The esophageal–gastric junction has thin-walled, low-pressure veins 2. High blood flow through the left gastric (coronary) vein creates maximal hemodynamic stress 3. The esophageal mucosa offers minimal structural support ### Comparative Frequency of Variceal Sites | Site | Frequency | Hemodynamic Basis | | --- | --- | --- | | Esophageal | 80–90% | Thin wall, high flow from coronary vein | | Gastric | 5–10% | Lower pressure, less frequent rupture | | Rectal | <2% | Rare, usually in post-surgical portal hypertension | | Duodenal | <1% | Uncommon, associated with severe portal hypertension | **Clinical Pearl:** Although gastric varices are present in 5–10% of cirrhotic patients, they bleed less frequently than esophageal varices but carry a higher mortality when they do rupture (due to larger vessel size and deeper location). **High-Yield:** In NEET PG exams, when asked about "variceal bleeding" in cirrhosis without further specification, the answer is esophageal varices. Gastric varices are a separate entity with distinct management (cyanoacrylate glue preferred over sclerotherapy). ### Clinical Implications - **Screening:** All cirrhotic patients should undergo upper endoscopy to detect esophageal varices - **Primary prophylaxis:** Non-selective beta-blockers (propranolol, carvedilol, nadolol) reduce variceal bleeding risk by 45–50% - **Acute bleeding:** Esophageal varices are managed with variceal band ligation (VBL) or endoscopic sclerotherapy (EST), with VBL preferred due to lower rebleeding rates [cite:Harrison 21e Ch 297]