Management of Impaired Liver Function

Initial Diagnostic Approach

• The European Association for the Study of the Liver recommends performing standard investigations for liver diseases, including serological tests for viral hepatitis (HBV, HCV) 1, 2
• The American Association for the Study of Liver Diseases suggests assessing for metabolic causes (iron studies, ceruloplasmin) and obtaining imaging studies to exclude biliary obstruction or neoplasm, with ultrasound of the liver and biliary tract as first-line imaging, although the specific citation for this is not provided, a similar recommendation is made by 2

Management Algorithm

Step 1: Review and Modify Medications

• The American College of Gastroenterology recommends identifying and discontinuing potentially hepatotoxic medications 1, 3
• The European Association for the Study of the Liver suggests considering the role of medications such as protease inhibitors (especially lopinavir-ritonavir) in liver injury 1

Step 2: Monitor Liver Function

• The American Association for the Study of Liver Diseases recommends repeating liver function tests twice weekly if the patient is on potentially hepatotoxic medications 1, 5
• The European Association for the Study of the Liver suggests monitoring more frequently in patients with abnormal liver function 1

Step 3: Specific Management Based on Etiology

For Viral Hepatitis:

• The World Health Organization recommends initiating antiviral therapy according to international guidelines for HBV infection 1, 6
• The American Association for the Study of Liver Diseases suggests continuing direct-acting antivirals (DAAs) if already initiated for HCV infection, unless drug-drug interactions are problematic 3, 5

Step 4: Supportive Care

• The Society of Critical Care Medicine recommends preventing and treating complications, such as monitoring for hypoglycemia and correcting electrolyte abnormalities 7, 8
• The American Society for Parenteral and Enteral Nutrition suggests ensuring adequate caloric intake and avoiding prolonged fasting 7, 8

When to Consider Referral

• The American College of Gastroenterology recommends considering referral if liver function continues to deteriorate despite initial management 6
• The European Association for the Study of the Liver suggests referring patients with signs of hepatic decompensation (encephalopathy, coagulopathy, ascites) 7, 6
• The American Association for the Study of Liver Diseases recommends referring patients with suspected drug-induced liver injury with severe elevation of enzymes 1, 3