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Chinese Journal of Laparoscopic Surgery(Electronic Edition) ›› 2025, Vol. 18 ›› Issue (02): 109-114. doi: 10.3877/cma.j.issn.1674-6899.2025.02.008

• Original Articles • Previous Articles     Next Articles

Comparative efficacy of robotic and open surgical approaches for lymph node dissection in intrahepatic cholangiocarcinoma

Boyuan Liu1,2, Kedi Zhang2, Jiarui Chen1,2, Minggen Hu2,()   

  1. 1. Medical School of Chinese PLA,Beijing 100853,China
    2. Faculty of Hepato-Pancreato-Biliary Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
  • Received:2025-03-21 Online:2025-04-30 Published:2025-05-22
  • Contact: Minggen Hu

Abstract:

Objective

To compare the perioperative outcomes, pathological characteristics, and lymph node dissection (LND) efficacy between robotic and open surgeries for intrahepatic cholangiocarcinoma (ICC) to evaluate the safety and feasibility of robotic-assisted LND.

Methods

This study retrospectively collected clinical data from 148 patients who underwent radical resection for intrahepatic cholangiocarcinoma with lymphadenectomy at the First Medical Center of Chinese PLA General Hospital between Jan. 2018 and Oct. 2023. Patients were stratified into robotic (n=42) and open surgery (n=106)groups. Propensity score matching (PSM) was applied to eliminate baseline confounding factors.Perioperative parameters, patholog-ical features, and LND outcomes were compared between groups.

Results

After propensity score matching, 35 patients in the robotic group and 33 in the open surgery group were included, with balanced baseline characteristics. The robotic group demonstrated significantly shorter operative time compared to the open surgery group (165.00 min vs. 190.00 min; Z=-2.33, P=0.020),along with reduced blood loss (50.00 ml vs. 200.00 ml; Z=-5.78, P<0.001), shorter drainage tube retention (5.00 days vs. 8.00 days; Z=-4.40, P<0.001),and decreased postoperative hospitalization duration (7.00 days vs. 11.00 days; Z=-4.75, P<0.001). However, no significant differences were observed between groups regarding Number of Pringlemaneuvers(P=0.603) or duration (P=0.519).Postoperative complication characteristics, rates showed no statistical discrepancy (χ2=1.010,P=0.663).Pathological includ-ing tumor multiplicity, differentiation grade, vascular invasion, satellite nodules, neural invasion,and microvascular invasion, were comparable between groups (all P>0.05).LND outcomes also revealed equivalence, with similar total harvested lymph nodes (4.00 vs. 5.00; Z=-1.19, P=0.236) and positive lymph node counts (1.00 vs. 1.00; Z=-0.89, P=0.375).

Conclusions

Robotic lymphadenectomy demonstrates non-inferior efficacy to open surgery with reduced intraoperative trauma.

Key words: Intrahepatic cholangiocarcinoma, Lymph node dissection, Robotic surgery

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