Auxiliary liver transplantation in children

Area of Science:

• Hepatology
• Transplantation Surgery
• Regenerative Medicine

Background:

• Acute liver failure (ALF) presents a critical challenge in liver disease management.
• Auxiliary liver transplantation (ALT) has emerged as a viable therapeutic option.
• Refined surgical techniques have improved outcomes for ALT.

Purpose of the Study:

• To review the advancements and current status of auxiliary liver transplantation (ALT).
• To evaluate the efficacy and long-term outcomes of ALT in treating acute liver failure.
• To explore the potential for liver regeneration and immunosuppression withdrawal post-ALT.

Main Methods:

• Review of current literature and clinical experience with ALT.
• Analysis of patient survival data comparing ALT to conventional liver transplantation.
• Assessment of criteria for identifying patients likely to achieve liver regeneration.

Main Results:

• Patient survival following ALT for acute liver failure is comparable to conventional liver replacement.
• Liver regeneration is documented in a significant proportion of patients, enabling immunosuppression withdrawal.
• Approximately two-thirds of survivors can potentially wean off immunosuppression within 4 years.
• Younger patients demonstrate the greatest long-term benefit from immunosuppression withdrawal.
• Methods for documenting regeneration include histology, nuclear medicine, and CT volumetry.
• ALT is also applicable for metabolic liver diseases and rare hepatic conditions.

Conclusions:

• Auxiliary liver transplantation is a recommended treatment for pediatric patients with acute liver failure.
• ALT should be considered for children meeting established criteria for liver transplantation.
• The potential for graft regeneration and subsequent immunosuppression withdrawal enhances ALT's value.