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. 2021 May;35(5):2316-2323.
doi: 10.1007/s00464-020-07645-x. Epub 2020 Nov 13.

Robotic versus open hemihepatectomy: a propensity score-matched study

Kit-Fai Lee  1 , Charing Chong  2 , Sunny Cheung  2 , John Wong  2 , Andrew Fung  2 , Hon-Ting Lok  2 , Eugene Lo  2 , Paul Lai  2
Affiliations

Robotic versus open hemihepatectomy: a propensity score-matched study

Kit-Fai Lee et al. Surg Endosc. 2021 May.

Abstract

Background: Minimally invasive approach has been increasingly applied in liver resection. However, laparoscopic major hepatectomy is technically demanding and is practiced only in expert centers around the world. Conversely, use of robot may help to overcome the difficulty and facilitate major hepatectomy.

Methods: Between September 2010 and March 2019, 151 patients received robotic hepatectomy for various indications in our center. 36 patients received robotic hemihepatectomy: 26 left hepatectomy and 10 right hepatectomy. During the same period, 737 patients received open hepatectomy and out of these, 173 patients received open hemihepatectomy. A propensity score-matched analysis was performed in a 1:1 ratio.

Results: After matching, there were 36 patients each in the robotic and open group. The two groups were comparable in demographic data, type of hemihepatectomy, underlying pathology, size of tumor, and background cirrhosis. Conversion was needed in 3 patients (8.3%) in the robotic group. There was no operative mortality. The operative blood loss and resection margin were similar. Though not significantly different, there was a higher rate of complications in the robotic group (36.1% vs. 22.2%) and this difference was mostly driven by higher intra-abdominal collection (16.7% vs. 5.6%) and bile leak (5.6% vs. 2.8%). Operative time was significantly longer (400.8 ± 136.1 min vs 255.4 ± 74.4 min, P < 0.001) but the postoperative hospital stay was significantly shorter (median 5 days vs 6.5 days, P = 0.040) in the robotic group. When right and left hepatectomy were analyzed separately, the advantage of shorter hospital stay remained in left but not right hepatectomy. For patients with hepatocellular carcinoma, there was no difference between the two groups in 5-year overall and disease-free survival.

Conclusion: Compared with the open approach, robotic hemihepatectomy has longer operation time but shorter hospital stay. Thus, use of robot is feasible and effective in hemihepatectomy with the benefit of shorter hospital stay.

Keywords: Hemihepatectomy; Major hepatectomy; Open hepatectomy; Robotic hepatectomy.

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