Simple and reproducible hepatectomy in the mouse using the clip technique

Area of Science:

• Surgical Innovation
• Animal Models
• Liver Research

Background:

• Massive hepatectomy is crucial for studying liver regeneration and disease.
• Existing surgical techniques may have limitations in reliability and efficiency.
• Developing standardized and reproducible models is essential for advancing liver research.

Purpose of the Study:

• To evaluate the reliability of massive hepatectomy models using the clip technique.
• To compare the clip technique with traditional suture methods for massive hepatectomy.
• To assess the impact of different hepatectomy percentages (>70%) on model outcomes.

Main Methods:

• Anatomical analysis of 100 mice undergoing massive hepatectomy (>70% liver reduction).
• Evaluation of learning curves, operative times, survival rates, and histopathological findings.
• Comparison between clip and suture techniques for inducing massive hepatectomy.

Main Results:

• Hepatectomy models with 75%, 80%, and 90% liver reduction were successfully created.
• The clip technique demonstrated optimal learning curves and reduced operative times.
• Clip technique resulted in reliable survival curves with no significant histopathological differences compared to suture techniques.

Conclusions:

• Massive hepatectomy using the clip technique is a simple and reliable method.
• This technique provides reproducible and relevant data for liver regeneration studies.
• The clip technique is recommended for creating standardized massive hepatectomy models.