Albumin Administration in Hepatic Encephalopathy
Introduction to Albumin Use
- The American Thoracic Society recommends albumin administration in combination with standard therapy to improve resolution of encephalopathy and reduce mortality in patients with hepatic encephalopathy 1
Evidence for Albumin Use
- A 2021 systematic review identified two randomized controlled trials showing that albumin administration resulted in a reduction in hepatic encephalopathy and mortality in patients with hepatic encephalopathy (RR 0.60; 95% CI 0.38-0.95) and (RR 0.54; 95% CI 0.33-0.90) 1
- The first open-label trial showed that albumin plus lactulose achieved complete resolution of hepatic encephalopathy in 75% of patients versus 53% with lactulose alone in patients with hepatic encephalopathy (P=0.03) 1
- The same trial demonstrated reduced mortality at day 10 in the albumin-lactulose group compared to lactulose alone in patients with hepatic encephalopathy (18% vs 32%, P=0.04) 1
- A second masked RCT using albumin showed improved 90-day mortality and transplant-free survival compared to normal saline in patients with hepatic encephalopathy (23% vs 47%) (P=0.02) 1
Recommended Dosing Regimens
- For acute hepatic encephalopathy: 1.5 g/kg on day 1 followed by 1.0 g/kg on day 3 is recommended by the American College of Chest Physicians 1, 2
- For acute hepatic encephalopathy: 1.5 g/kg/day for up to 10 days in combination with lactulose is an alternative regimen recommended by the American College of Chest Physicians 1
Important Considerations and Limitations
- The American College of Chest Physicians notes that potential adverse effects of albumin administration include fluid overload and pulmonary edema, particularly in patients with compromised cardiac or pulmonary function 2
- The American College of Chest Physicians also notes that patients with cirrhosis are at higher risk for adverse effects due to increased capillary permeability, and that more severe or life-threatening serious adverse events have been reported in albumin-treated patients, primarily pulmonary edema 2
Other Established Indications for Albumin
- The American College of Radiology recommends albumin for prevention of circulatory dysfunction after large-volume paracentesis (>5L) in cirrhotic patients 4
- The European Association for the Study of the Liver recommends albumin for prevention of hepatorenal syndrome in patients with spontaneous bacterial peritonitis (1.5 g/kg at diagnosis and 1g/kg on day 3) 6