Evidence map›Paper›PMID 33185767›Full record

ArticleSurgical endoscopy2021

Robotic versus open hemihepatectomy: a propensity score-matched study.

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

Abstract read
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In one paragraph

Article in Surgical endoscopy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
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  6. [Minimally invasive liver resection-New techniques].Chirurgie (Heidelberg, Germany) · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Kit-Fai LeeDepartment of Surgery, Prince of Wales Hospital, 30-32, Ngan Shing Street, Shatin, NT, Hong Kong. leekf@surgery.cuhk.edu.hk.ORCID 0000-0003-0637-0291
Charing ChongDepartment of Surgery, Prince of Wales Hospital, 30-32, Ngan Shing Street, Shatin, NT, Hong Kong.
Sunny CheungDepartment of Surgery, Prince of Wales Hospital, 30-32, Ngan Shing Street, Shatin, NT, Hong Kong.
John WongDepartment of Surgery, Prince of Wales Hospital, 30-32, Ngan Shing Street, Shatin, NT, Hong Kong.
Andrew FungDepartment of Surgery, Prince of Wales Hospital, 30-32, Ngan Shing Street, Shatin, NT, Hong Kong.
Hon-Ting LokDepartment of Surgery, Prince of Wales Hospital, 30-32, Ngan Shing Street, Shatin, NT, Hong Kong.
Eugene LoDepartment of Surgery, Prince of Wales Hospital, 30-32, Ngan Shing Street, Shatin, NT, Hong Kong.
Paul LaiDepartment of Surgery, Prince of Wales Hospital, 30-32, Ngan Shing Street, Shatin, NT, Hong Kong.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMinimally 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.

methodsBetween 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.

resultsAfter 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.

conclusionCompared 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.

Indexed as

AgedBlood Loss, SurgicalCarcinoma, HepatocellularDisease-Free SurvivalFemaleHepatectomyHepatitis CHumansLength of StayLiver NeoplasmsMaleMiddle AgedOperative TimePostoperative ComplicationsPropensity ScoreRobotic Surgical ProceduresHemihepatectomyMajor hepatectomyOpen hepatectomyRobotic hepatectomy

Identifiers

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Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.