Background: The safety and efficacy of laparoscopic liver resection (LLR) have been reported worldwide. However, those of LLR for tumors located in Couinaud's segment 8 are not sufficiently investigated.
Methods: We retrospectively analyzed 108 patients who underwent liver resection for hepatocellular carcinoma (HCC) in segment 8 at Kobe University Hospital and Hyogo Cancer Center between January 2010 and December 2021. The patients were categorized in LLR and open liver resection (OLR) groups, and 1:1 propensity score matching (PSM) was performed to compare surgical outcomes between the groups.
Results: Forty-seven and 61 patients underwent LLR and OLR, respectively. After PSM, each group contained 34 patients. There was no significant difference in operation time between the groups (331 min vs. 330 min, P = 0.844). Patients in the LLR group had significantly less blood loss (30 mL vs. 468 mL, P < 0.001) and shorter length of postoperative hospital stay (10 days vs. 12 days, P = 0.015) than those in the OLR group. There was no significant difference in the occurrence of postoperative complications between the groups (12% vs. 9%, P = 0.690). Further, the 1-year cumulative incidence of recurrence was not significantly different between the groups (16% vs. 19%, P = 0.734).
Conclusions: The surgical outcomes and short-term prognosis of LLR were similar or better than those of OLR. LLR could be an effective and safe procedure, even for lesions located in segment 8, which is considered a difficult anatomical location for LLR.
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