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Related Experiment Video

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Efficient nonarterialized mouse liver transplantation using 3-dimensional-printed instruments.

Graziano Oldani1,2, Stéphanie Lacotte1, Lorenzo A Orci1,2

  • 1Division of Abdominal Surgery, Department of Surgery, Faculty of Medicine, University of Geneva, Geneva, Switzerland.

Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society
|September 13, 2016
PubMed
Summary
This summary is machine-generated.

This study introduces a simplified mouse liver transplantation technique using 3D-printed devices, demonstrating that hepatic artery reconstruction is unnecessary for successful outcomes. This method reduces clamping time in liver transplantation.

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Area of Science:

  • Surgical Innovation
  • Transplantation Research
  • Medical Device Engineering

Background:

  • Mouse orthotopic liver transplantation is preferred due to the availability of genetically modified models.
  • Traditional techniques can be complex and time-consuming.

Purpose of the Study:

  • To present a simplified mouse liver transplantation technique.
  • To compare outcomes with and without hepatic artery anastomosis.
  • To introduce novel 3D-printed instruments for liver implantation.

Main Methods:

  • Developed and utilized 3D-printed instruments for spatial alignment and stabilization during liver implantation.
  • Performed suprahepatic vena cava anastomosis with sutures and joined the portal vein and infrahepatic vena cava on extraluminal cuffs.
  • Reconstructed the hepatic artery in half of the recipients using intraluminal stents.
  • Assessed liver function tests and histology at multiple time points post-transplantation.

Main Results:

  • Achieved 100% survival at 4 weeks in both arterialized and non-arterialized groups.
  • Demonstrated similar liver function tests and minimal histological abnormalities between groups.
  • Reported a median portal clamping time of 12.5 minutes, shorter than published literature.
  • Confirmed no negative impact on graft or recipient outcomes without hepatic artery anastomosis.

Conclusions:

  • The simplified technique, aided by 3D-printed devices, allows for efficient mouse liver transplantation.
  • Hepatic artery reconstruction is not essential for successful outcomes in this model.
  • The 3D-printable device facilitates shorter clamping times and reproducible results.