Infections That Cause Cholestatic Hepatitis
Introduction to Cholestatic Hepatitis
- The primary infectious causes of cholestatic hepatitis are viral hepatitis A (HAV), hepatitis B (HBV), cytomegalovirus (CMV), and sepsis/endotoxemia, with HAV being the most common viral etiology causing cholestatic patterns in 10-15% of cases 1, 2, 3
Viral Hepatitis
- HAV is the most well-documented viral cause of cholestatic hepatitis, occurring in approximately 10-15% of patients with hepatitis A infection 1, 2
- The cholestatic variant presents with prolonged jaundice and elevated alkaline phosphatase, with clinical, laboratory, and pathologic findings consistent with cholestatic hepatitis 1, 2
- The condition typically resolves spontaneously, though a short course of rapidly tapered corticosteroids can reduce symptoms and hasten resolution 1, 2
Bacterial Infections
- Sepsis-induced cholestasis is a recognized cause of intrahepatic cholestatic hepatitis 4, 3
- This typically presents in critically ill patients with systemic infection and endotoxemia 3
- The mechanism involves inflammatory cytokines and endotoxins disrupting hepatocellular bile transport 3
- Infectious cholangitis related to AIDS and other forms of immunosuppression can cause secondary sclerosing cholangitis with cholestatic features 4, 3
Diagnostic Approach
- Obtain thorough history including fever, which is suggestive of cholangitis but may rarely occur with viral hepatitis 4, 3
- Perform abdominal ultrasound as the first step to exclude extrahepatic obstruction 4, 3, 5
Management Considerations
- Most viral cholestatic hepatitis resolves spontaneously with supportive care 1, 2
- For HAV with severe cholestasis and pruritus, consider short-course corticosteroids 1, 2
- Manage pruritus with cholestyramine as first-line, rifampicin as second-line 5, 7
- Always exclude extrahepatic obstruction first before attributing cholestasis to infectious causes 4, 3, 5
- Rule out drug-induced liver injury, as medications taken within 6 weeks of presentation may be responsible 4, 3
- In immunosuppressed patients, maintain high suspicion for opportunistic infections causing cholestasis 3