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Robotic versus open hemihepatectomy: a propensity score-matched study

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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.

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Acknowledgements

The authors thank Mr Philip Ip for his assistance with data processing and statistical analysis.

Funding

This study was not supported by any Grant or funding.

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Authors and Affiliations

  1. Department of Surgery, Prince of Wales Hospital, 30-32, Ngan Shing Street, Shatin, NT, Hong Kong

    Kit-fai Lee, Charing Chong, Sunny Cheung, John Wong, Andrew Fung, Hon-ting Lok, Eugene Lo & Paul Lai

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  1. Kit-fai Lee
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  2. Charing Chong
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  3. Sunny Cheung
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  4. John Wong
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  5. Andrew Fung
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  6. Hon-ting Lok
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  7. Eugene Lo
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  8. Paul Lai
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Correspondence to Kit-fai Lee.

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K.F. Lee, Charing Chong, Sunny Cheung, John Wong, Andrew Fung, H.T. Lok, E. Lo, and Paul Lai have no conflicts of interest or financial ties to disclose.

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Lee, Kf., Chong, C., Cheung, S. et al. Robotic versus open hemihepatectomy: a propensity score-matched study. Surg Endosc 35, 2316–2323 (2021). https://doi.org/10.1007/s00464-020-07645-x

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  • DOI: https://doi.org/10.1007/s00464-020-07645-x

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