Albumin Injection After Large-Volume Paracentesis
Administer intravenous albumin (20% or 25% solution) at a dose of 6-8 grams per liter of ascites removed when performing large-volume paracentesis (>5 liters) in patients with chronic liver disease. 1
Dosing Algorithm
For Paracentesis >5 Liters
- Standard dose: 8 g albumin per liter of ascites removed 1
- Infuse after the paracentesis is completed, not before
- Use 20% or 25% albumin solution (high-quality evidence, strong recommendation) 1
Example calculations:
- 6 liters removed = 48 grams albumin (approximately 240 mL of 20% solution)
- 8 liters removed = 64 grams albumin (approximately 320 mL of 20% solution) 2
For Paracentesis <5 Liters
- Consider albumin in high-risk patients: 1, 3
- Those with acute-on-chronic liver failure (ACLF)
- Pre-existing hypotension
- Renal insufficiency (creatinine >1.5 mg/dL)
- Electrolyte abnormalities
- History of post-paracentesis complications
- Use same dose: 6-8 g/L of ascites removed 3, 4
Why Albumin Matters
The rationale is prevention of post-paracentesis circulatory dysfunction (PPCD), which occurs when large-volume fluid removal triggers:
- Reduced effective arterial blood volume
- Activation of renin-angiotensin-aldosterone system
- Sympathetic nervous system activation
- Risk of acute kidney injury, hyponatremia, hepatic encephalopathy, and death 2, 3
High-quality evidence shows albumin reduces:
Important Caveats
Volume Considerations
- Limit single-session paracentesis to <8 liters when possible 2
- Risk of PPCD increases substantially with >8 L removal
- If more fluid needs removal, consider staged procedures
Albumin Administration
- Infuse slowly to prevent cardiac overload, especially in patients with cirrhotic cardiomyopathy 5
- Monitor for volume overload signs (dyspnea, pulmonary edema)
- Watch for allergic reactions, though rare 6
Emerging Evidence on Lower Doses
Recent studies suggest 4-6 g/L may be equally effective 7, 8, 9, but current guidelines maintain 6-8 g/L as the standard 1, 2, 3. The 2021 Gut guidelines (highest quality) provide high-quality evidence for the 8 g/L dose 1. Until definitive dose-response studies confirm safety of lower doses across diverse populations, adhere to guideline-recommended dosing.
What NOT to Do
- Do NOT routinely check PT/INR or platelet count before paracentesis 1
- Do NOT give prophylactic blood products for coagulopathy 1
- Do NOT use alternative plasma expanders (dextran, gelatin, hydroxyethyl starch) - these carry risks of prion transmission, allergic reactions, and renal impairment 1
Cost-Effectiveness Note
While albumin is expensive and in worldwide shortage 1, it remains the only recommended plasma expander with proven mortality benefit. Standardized order sets can reduce overuse (from 8.3 g/L to 6.5 g/L) without compromising safety 8.