Parenchymal‐sparing versus extended hepatectomy for colorectal liver metastases: A systematic review and meta‐analysis

Abstract Aims To assess the safety and efficacy of parenchymal‐sparing hepatectomy (PSH) as a treatment of colorectal liver metastases (CLM). Methods A comprehensive medical literature search was performed. Perioperative and long‐term survival outcomes were pooled. Subgroup analysis and meta‐regress...

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Main Authors: Gang Deng, Hui Li, Gui‐qing Jia, Dan Fang, You‐yin Tang, Jie Xie, Ke‐fei Chen, Zhe‐yu Chen
Format: Article
Language:English
Published: Wiley 2019-10-01
Series:Cancer Medicine
Subjects:
Online Access:https://doi.org/10.1002/cam4.2515
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author Gang Deng
Hui Li
Gui‐qing Jia
Dan Fang
You‐yin Tang
Jie Xie
Ke‐fei Chen
Zhe‐yu Chen
author_facet Gang Deng
Hui Li
Gui‐qing Jia
Dan Fang
You‐yin Tang
Jie Xie
Ke‐fei Chen
Zhe‐yu Chen
author_sort Gang Deng
collection DOAJ
description Abstract Aims To assess the safety and efficacy of parenchymal‐sparing hepatectomy (PSH) as a treatment of colorectal liver metastases (CLM). Methods A comprehensive medical literature search was performed. Perioperative and long‐term survival outcomes were pooled. Subgroup analysis and meta‐regression analysis were performed to identify potential sources of heterogeneity. Results A total of 18 studies comprising 7081 CLM patients were eligible for this study. The PSH was performed on 3974 (56.1%) patients. We found that the OS (overall survival; hazard ratio [HR] = 1.01, 95% confidence interval [CI]: 0.94‐1.08) and RFS (recurrence‐free survival; HR = 1.00, 95% CI: 0.94‐1.07) were comparable between non‐PSH and PSH group. The perioperative outcomes were better in PSH than in non‐PSH group. Non‐PSH group was significantly associated with longer operative time (standard mean difference [SMD] = 1.17, 95% CI: 0.33‐2.00), increased estimated blood loss (SMD = 1.36, 95% CI: 0.64‐2.07), higher intraoperative transfusion rate (risk ratio [RR] = 2.27, 95% CI: 1.60‐3.23), and more postoperative complications (RR = 1.39, 95% CI: 1.16‐1.66). Meta‐regression analyses revealed that no variable influenced the association between surgical types and the survival outcomes. Conclusions This study shows that PSH is associated with better perioperative outcomes without compromising oncological outcomes. Given the increasing incidence of hepatic parenchyma, the PSH treatment offers a greater opportunity of repeat resection for intrahepatic recurrent tumors. It should be considered as an effective surgical approach for CLM.
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spelling doaj.art-9cb744c72a624e55b090ea4887f3e52c2022-12-21T18:54:14ZengWileyCancer Medicine2045-76342019-10-018146165617510.1002/cam4.2515Parenchymal‐sparing versus extended hepatectomy for colorectal liver metastases: A systematic review and meta‐analysisGang Deng0Hui Li1Gui‐qing Jia2Dan Fang3You‐yin Tang4Jie Xie5Ke‐fei Chen6Zhe‐yu Chen7Department of Liver Surgery and Liver Transplantation Center West China Hospital of Sichuan University Chengdu ChinaDepartment of Liver Surgery and Liver Transplantation Center West China Hospital of Sichuan University Chengdu ChinaDepartment of Liver Surgery and Liver Transplantation Center West China Hospital of Sichuan University Chengdu ChinaDepartment of Breast Surgery Affiliated Hospital of Guizhou Medical University Guiyang ChinaDepartment of Liver Surgery and Liver Transplantation Center West China Hospital of Sichuan University Chengdu ChinaDepartment of Liver Surgery and Liver Transplantation Center West China Hospital of Sichuan University Chengdu ChinaDepartment of Liver Surgery and Liver Transplantation Center West China Hospital of Sichuan University Chengdu ChinaDepartment of Liver Surgery and Liver Transplantation Center West China Hospital of Sichuan University Chengdu ChinaAbstract Aims To assess the safety and efficacy of parenchymal‐sparing hepatectomy (PSH) as a treatment of colorectal liver metastases (CLM). Methods A comprehensive medical literature search was performed. Perioperative and long‐term survival outcomes were pooled. Subgroup analysis and meta‐regression analysis were performed to identify potential sources of heterogeneity. Results A total of 18 studies comprising 7081 CLM patients were eligible for this study. The PSH was performed on 3974 (56.1%) patients. We found that the OS (overall survival; hazard ratio [HR] = 1.01, 95% confidence interval [CI]: 0.94‐1.08) and RFS (recurrence‐free survival; HR = 1.00, 95% CI: 0.94‐1.07) were comparable between non‐PSH and PSH group. The perioperative outcomes were better in PSH than in non‐PSH group. Non‐PSH group was significantly associated with longer operative time (standard mean difference [SMD] = 1.17, 95% CI: 0.33‐2.00), increased estimated blood loss (SMD = 1.36, 95% CI: 0.64‐2.07), higher intraoperative transfusion rate (risk ratio [RR] = 2.27, 95% CI: 1.60‐3.23), and more postoperative complications (RR = 1.39, 95% CI: 1.16‐1.66). Meta‐regression analyses revealed that no variable influenced the association between surgical types and the survival outcomes. Conclusions This study shows that PSH is associated with better perioperative outcomes without compromising oncological outcomes. Given the increasing incidence of hepatic parenchyma, the PSH treatment offers a greater opportunity of repeat resection for intrahepatic recurrent tumors. It should be considered as an effective surgical approach for CLM.https://doi.org/10.1002/cam4.2515anatomical hepatectomycolorectal liver metastasismeta‐analysisoncological outcomesparenchymal‐sparing hepatectomy
spellingShingle Gang Deng
Hui Li
Gui‐qing Jia
Dan Fang
You‐yin Tang
Jie Xie
Ke‐fei Chen
Zhe‐yu Chen
Parenchymal‐sparing versus extended hepatectomy for colorectal liver metastases: A systematic review and meta‐analysis
Cancer Medicine
anatomical hepatectomy
colorectal liver metastasis
meta‐analysis
oncological outcomes
parenchymal‐sparing hepatectomy
title Parenchymal‐sparing versus extended hepatectomy for colorectal liver metastases: A systematic review and meta‐analysis
title_full Parenchymal‐sparing versus extended hepatectomy for colorectal liver metastases: A systematic review and meta‐analysis
title_fullStr Parenchymal‐sparing versus extended hepatectomy for colorectal liver metastases: A systematic review and meta‐analysis
title_full_unstemmed Parenchymal‐sparing versus extended hepatectomy for colorectal liver metastases: A systematic review and meta‐analysis
title_short Parenchymal‐sparing versus extended hepatectomy for colorectal liver metastases: A systematic review and meta‐analysis
title_sort parenchymal sparing versus extended hepatectomy for colorectal liver metastases a systematic review and meta analysis
topic anatomical hepatectomy
colorectal liver metastasis
meta‐analysis
oncological outcomes
parenchymal‐sparing hepatectomy
url https://doi.org/10.1002/cam4.2515
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