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Arterial anastomosis in LDLT: techniques and risks.

Stefano Di Sandro1,2, Barbara Catellani3, Deniz Balci4

  • 1Hepato-Pancreato-Biliary Surgery and Liver Transplantation Unit, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124, Modena, Italy. sdisandro@unimore.it.

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|September 26, 2024
PubMed
Summary

Reconstructing the hepatic artery during liver transplants is complex. While microscopes offer precision, experienced surgeons achieve low thrombosis rates below 1% using various techniques.

Keywords:
Living donor liver transplantationarterial anastomosisinterrupted stichesloupesmicroscoperunning suture

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Area of Science:

  • Hepatobiliary Surgery
  • Transplantation Surgery
  • Vascular Reconstruction

Background:

  • Hepatic artery reconstruction in liver transplantation presents significant technical challenges.
  • Complications like arterial thrombosis can lead to high mortality (up to 50%) and graft loss, often requiring re-transplantation.

Purpose of the Study:

  • To review the technical aspects and outcomes of hepatic artery reconstruction in adult living donor liver transplantation.
  • To compare the efficacy of different surgical techniques, including loupes versus microscopy, in managing arterial anastomosis.

Main Methods:

  • Review of common surgical techniques for hepatic artery anastomosis, including end-to-end reconstruction with sutures.
  • Comparison of outcomes associated with magnifying loupes versus surgical microscopes.

Main Results:

  • Microscopic visualization enhances precision but does not significantly decrease early arterial thrombosis rates compared to loupes.
  • Microscopes may increase overall surgical time.
  • Experienced surgeons utilizing evolving techniques achieve early arterial thrombosis rates below 1%.

Conclusions:

  • Hepatic artery reconstruction is a critical yet challenging step in liver transplantation.
  • Surgical experience and technique refinement are key to minimizing complications like arterial thrombosis.
  • Both loupes and microscopes can be effective, with outcomes largely dependent on surgeon expertise.