Initial Experience of Parenchyma-sparing Liver Resection with Systematic Selective Hepatic Vein Reconstruction for Colorectal Metastases

Overview

Journal BMJ Surg Interv Health Technol

Publisher BMJ Publishing Group

Specialty Biomedical Engineering

Date 2024 Dec 17

PMID 39687210

Authors

Yevhenii Trehub

Asmund Avdem Fretland

Artem Zelinskyi

Dzmitrii Kharkov

Oleksii Babashev

Dmytro Chieverdiuk

Artem Shchebetun

Kyrylo Khyzhniak

Maksym Pavlovskii

Andrii Strokan

Sergii Zemskov

Affiliations

Soon will be listed here.

Abstract

Objectives: This study aims to assess the feasibility and short-term and intermediate-term technical success rate of the concept of systematic selective hepatic vein (HV) reconstruction for parenchyma-sparing hepatectomies (PSHs) in patients with colorectal liver metastases (CRLM) in accordance with stage 2a of the IDEAL framework.

Design: The prospective case series of patients deemed eligible and operated on according to the concept.

Setting: All patients were treated by a single surgical team in three hospitals in Ukraine from June 2022 to November 2023.

Participants: The study included nine cases of resectable CRLM with at least one lesion located in the hepatocaval confluence with HV(s) invasion, for whom reconstruction of the HV(s) allowed for additional parenchyma preservation, being an alternative to major or extended hepatectomy.

Interventions: Liver resections with different types of HVs reconstruction (primary closure, patching, end-to-end anastomosis with or without grafting) were performed after a thorough evaluation of the future liver remnant volume, volume of potentially additionally preserved parenchyma and possibility of future repeat hepatectomies.

Main Outcome Measures: Postoperative morbidity, short-term and long-term patency of the reconstructed vessels, and the volume of additionally preserved parenchyma were the focus.

Results: Segmental resection was performed in four cases, two with graft interposition. Patch reconstruction was performed for three HVs and two inferior vena cava resections. Two cases required primary closure. No mortality was observed, while the major morbidity rate was 33%. The short-term and long-term patency of the reconstructed HVs was 88.9% and 66.7%, respectively. HV reconstructions allowed the preservation of additional parenchyma (mean 495.4 mL, 95% CI 350.2 to 640.7). A decision-making algorithm to be used within the described approach is proposed.

Conclusions: Selective HV reconstruction is a feasible approach for PSH for CRLM. Further studies are needed to compare this approach to convenient major hepatectomies.

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