Liver Biopsy During Pregnancy: A Review

Area of Science:

• Hepatology
• Obstetrics
• Diagnostic Imaging

Background:

• Liver biopsy is the gold standard for liver pathology diagnosis but is limited in pregnancy due to safety concerns.
• Percutaneous, image-guided liver biopsy is generally safe, but potential complications lead to delayed diagnosis until postpartum.
• Timely diagnosis of liver disease in pregnancy is critical for maternal and fetal well-being.

Purpose of the Study:

• To review the indications, outcomes, and safety of liver biopsy during pregnancy.
• To explore the diagnostic challenges posed by pregnancy-related liver diseases.
• To assess the role of liver biopsy when non-invasive methods are inconclusive.

Main Methods:

• Review of existing literature on liver biopsy in pregnant patients.
• Examination of diagnostic criteria for pregnancy-related liver conditions like AFLP, ICP, HELLP syndrome, HLH, and hepatic masses.
• Analysis of case studies involving hepatocellular carcinoma and post-liver transplant graft rejection.

Main Results:

• Liver biopsy during pregnancy is rarely indicated but crucial when non-invasive tests are inconclusive.
• Specific conditions like AFLP, ICP, HELLP, HLH, and hepatic masses may necessitate biopsy.
• Histological confirmation is essential in select cases, such as suspected graft rejection or hepatocellular carcinoma.
• Evidence on the safety of liver biopsy in pregnancy is limited.

Conclusions:

• A stepwise approach prioritizing non-invasive methods is recommended before considering liver biopsy in pregnancy.
• Liver biopsy can provide indispensable diagnostic clarity in rare, complex cases.
• Further prospective studies are required to establish the safety profile and diagnostic utility of liver biopsy in pregnant individuals.