A 58-year-old man with a 15-year history of alcohol use disorder presents to the emergency department with hematemesis and melena. On examination, he is tachycardic (HR 110/min), hypotensive (BP 88/56 mmHg), and has clinical signs of chronic liver disease including spider angiomas, palmar erythema, and ascites. Upper endoscopy reveals large esophageal varices with active bleeding. After resuscitation and blood product transfusion, variceal ligation is performed. Which of the following is the most appropriate next step in management to prevent variceal rebleeding?

Explanation

## Management of Esophageal Variceal Bleeding — Secondary Prevention **Key Point:** After successful acute variceal bleeding control with endoscopic therapy, beta-blockers (non-selective) are the cornerstone of secondary prophylaxis to reduce portal pressure and prevent rebleeding. ### Pathophysiology of Variceal Rebleeding Esophageal varices develop due to portal hypertension (typically from cirrhosis). Rebleeding occurs in 60% of untreated patients within 2 years. The mechanism involves: 1. Elevated portal venous pressure (> 12 mmHg gradient) 2. Variceal wall tension and rupture risk 3. Need for sustained reduction in portal pressure ### Role of Beta-Blockers in Secondary Prophylaxis **Non-selective beta-blockers** (propranolol, nadolol, carvedilol) reduce portal pressure by: - Decreasing cardiac output (β~1~ blockade) - Causing splanchnic vasoconstriction (unopposed α-adrenergic effect) - Target: reduce hepatic venous pressure gradient (HVPG) by ≥ 20% or to < 12 mmHg **High-Yield:** Propranolol 40 mg BD is the standard first-line agent; carvedilol (6.25 mg daily) is increasingly preferred due to superior portal pressure reduction and improved outcomes [cite:Harrison 21e Ch 297]. ### Comparison of Secondary Prophylaxis Strategies | Intervention | Indication | Efficacy | Timing | |---|---|---|---| | **Beta-blocker** | First-line after acute control | Reduces rebleeding by 40–50% | Start immediately post-endoscopy | | **Repeat variceal ligation** | Eradication of varices | Reduces rebleeding; often combined with beta-blocker | 2–4 weeks after initial ligation | | **TIPS** | Refractory variceal bleeding or failed endoscopic therapy | Highly effective but reserved for failures | Not first-line for secondary prophylaxis | | **PPI monotherapy** | Adjunct only (not primary) | Minimal role in variceal bleeding | Not sufficient alone | **Clinical Pearl:** The combination of beta-blocker + repeat variceal ligation (band ligation) at 2–4 week intervals achieves variceal eradication in > 80% of patients and is superior to either modality alone. ### Why Propranolol is Correct Here This patient has: - Acute variceal bleeding controlled by endoscopy ✓ - Cirrhosis with portal hypertension ✓ - No contraindications to beta-blockers (HR 110, BP 88/56 after resuscitation) ✓ Propranolol should be initiated immediately (or once hemodynamically stable) to prevent the 60% rebleeding risk. Repeat ligation will follow in 2–4 weeks as part of eradication strategy. **Mnemonic:** **HVPG** = Hepatic Venous Pressure Gradient; target reduction ≥ 20% or absolute < 12 mmHg with beta-blockers. ```mermaid flowchart TD A["Acute Variceal Bleeding Controlled<br/>by Endoscopy"]:::outcome --> B{"Hemodynamically<br/>Stable?"}:::decision B -->|No| C["Continue resuscitation<br/>Defer beta-blocker"]:::action B -->|Yes| D["Start non-selective beta-blocker<br/>(Propranolol 40 mg BD or Carvedilol 6.25 mg daily)"]:::action D --> E["Arrange repeat variceal ligation<br/>at 2-4 weeks"]:::action E --> F["Monitor for variceal eradication<br/>& rebleeding"]:::outcome G["Refractory bleeding or<br/>Failed endoscopy?"]:::decision -.->|Yes| H["Consider TIPS"]:::urgent ``` **High-Yield:** Secondary prophylaxis reduces 2-year rebleeding from 60% to ~20% and mortality by ~30%.