Related Experiment Videos
Technical refinement preserving segment 4 to donor in extended right hepatectomy.
Kyung-Suk Suh1, Nam-Joon Yi, Jai Yong Cho
1Department of Surgery, Seoul National University, College of Medicine, Seoul, Korea. kssuh@plaza.snu.ac.kr
Hepato-Gastroenterology
|April 13, 2006
Summary
Modified extended right hepatectomy (MERH) preserves segment 4 in liver donors, preventing congestion without impacting recovery or regeneration. This technique is beneficial for adult living donor liver transplantation.
Area of Science:
- Hepatobiliary Surgery
- Organ Transplantation
- Surgical Techniques
Background:
- Extended right hepatectomy (ERH) is used in adult living donor liver transplantation to ensure adequate graft size.
- Standard ERH may lead to a small remnant liver in the donor, potentially causing congestion.
- Preserving segment 4 (Sg4) during ERH is challenging.
Purpose of the Study:
- To introduce and evaluate a Modified extended right hepatectomy (MERH) technique.
- To assess the safety and efficacy of MERH in preserving Sg4 in liver donors.
- To compare MERH with standard right hepatectomy (RH) regarding donor outcomes.
Main Methods:
- A retrospective comparison of clinical outcomes between donors undergoing MERH (n=12) and RH (n=12).
- MERH involved excavating the middle hepatic vein (MHV) while preserving the entire Sg4.
- MERH was performed when the remnant liver volume exceeded 35% and showed no preoperative steatosis.
Main Results:
- No donor mortality was observed in either group.
- Operative time and postoperative recovery showed no significant differences between MERH and RH groups.
- Remnant liver regeneration rates were similar between MERH and RH donors at 10 days and 4 months post-operation.
Conclusions:
- MERH is a safe and effective surgical modification for liver donation.
- Preserving Sg4 using MERH does not negatively impact donor recovery or liver regeneration.
- MERH offers a viable option to improve graft adequacy in adult living donor liver transplantation.