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.
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).
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.
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.
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Published online: February 20, 2023
Accepted: February 18, 2023
Received in revised form: February 5, 2023
Received: October 31, 2022
© 2023 Elsevier Ltd, BASO ~ The Association for Cancer Surgery, and the European Society of Surgical Oncology. All rights reserved.