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Laparoscopic versus open hepatectomy for intrahepatic cholangiocarcinoma: Systematic review and meta-analysis of propensity score-matched studies

Journal

EJSO
Volume 49, Issue 4, Pages 700-708

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.ejso.2023.02.010

Keywords

Laparoscopic hepatectomy; Open hepatectomy; Intrahepatic cholangiocarcinoma; Systematic review; Meta -analysis; Propensity score matching

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This meta-analysis compared the effects of laparoscopic hepatectomy (LH) versus open hepatectomy (OH) on the outcomes of patients with intrahepatic cholangiocarcinoma (ICC). It found that LH has better surgical outcomes and comparable oncological and survival outcomes to OH, indicating that laparoscopy is at least not inferior to open surgery for ICC.
Objective: To compare the effects of laparoscopic hepatectomy (LH) versus open hepatectomy (OH) on the short-term and long-term outcomes of patients with intrahepatic cholangiocarcinoma (ICC) through a meta-analysis of studies using propensity score-matched cohorts.Methods: The literature search was conducted in PubMed, Embase, and Cochrane Library databases until August 31, 2022. Meta-analysis of surgical (major morbidity, the length of hospital stay, 90-day postoperative mortality), oncological (R0 resection rate, lymph node dissection rate) and survival outcomes (1-, 3-, and 5-year overall survival and disease-free survival) was performed using a random effects model. Data were summarized as relative risks (RR), mean difference (MD) and hazard ratio (HR) with 95% confidence intervals (95% CI).Results: Six case-matched studies with 1054 patients were included (LH 518; OH 536). Major morbidity was significantly lower (RR = 0.57, 95% CI = 0.37-0.88, P = 0.01) and the length of hospital stay was significantly shorter (MD = -2.44, 95% CI = -4.19 to -0.69, P = 0.006) in the LH group than in the OH group, but there was no significant difference in 90-day postoperative mortality between the 2 groups. There were no significant differences in R0 resection rate, lymph node dissection rate, 1-, 3-, and 5-year overall survival or disease-free survival between the LH and OH groups.Conclusions: LH has better surgical outcomes and comparable oncological outcomes and survival outcomes than does OH on ICC. Therefore, laparoscopy is at least not inferior to open surgery for intrahepatic cholangiocarcinoma.(c) 2023 Elsevier Ltd, BASO - The Association for Cancer Surgery, and the European Society of Surgical Oncology. All rights reserved.

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