Evidence map›Paper›PMID 28916894›Full record

ArticleSurgical endoscopy2018

Critical appraisal of the impact of individual surgeon experience on the outcomes of laparoscopic liver resection in the modern era: collective experience of multiple surgeons at a single institution with 324 consecutive cases.

Brian K P Goh, Jin-Yao Teo, Ser-Yee Lee, Juinn-Huar Kam, Peng-Chung Cheow, Premaraj Jeyaraj, Pierce K H Chow, London L P J Ooi, Alexander Y F Chung, Chung-Yip Chan

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In one paragraph

Article in Surgical endoscopy, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 7% of its field
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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Efficacy of Laparoscopic HepatectomyFrontiers in oncology · 2021
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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

10 authors at 2 institutions in 1 country.

Brian K P GohDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore. bsgkp@hotmail.com.
Jin-Yao TeoDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
Ser-Yee LeeDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
Juinn-Huar KamDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
Peng-Chung CheowDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
Premaraj JeyarajDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
Pierce K H ChowDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
London L P J OoiDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
Alexander Y F ChungDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
Chung-Yip ChanDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
Singapore General Hospital · SGNational University of Singapore · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMost studies analyzing the learning experience of laparoscopic liver resection (LLR) focused on the experience of one or two expert pioneering surgeons. This study aims to critically analyze the impact of individual surgeon experience on the outcomes of LLR based on the contemporary collective experiences of multiple surgeons at single institution.

methodsRetrospective review of 324 consecutive LLR from 2006 to 2016. The cases were performed by 10 surgeons over various time periods. Four surgeons had individual experience with <20 cases, four surgeons with 20-30 cases, and two surgeons with >90 cases. The cohort was divided into two groups: comparing a surgeon's experience between the first 20, 30, 40, and 50 cases with patients treated thereafter. Similarly, we performed subset analyses for anterolateral lesions, posterosuperior lesions, and major hepatectomies.

resultsAs individual surgeons gained increasing experience, this was significantly associated with older patients being operated, decreased hand-assistance, larger tumor size, increased liver resections, increased major resections, and increased resections of tumors located at the posterosuperior segments. This resulted in significantly longer operation time and increased use of Pringle maneuver but no difference in other outcomes. Analysis of LLR for tumors in the posterosuperior segments demonstrated that there was a significant decrease in conversion rates after a surgeon had experience with 20 LLR. For major hepatectomies, there was a significant decrease in morbidity, mortality, and length of stay after acquiring experience with 20 LLR.

conclusionLLR can be safely adopted today especially for lesions in the anterolateral segments. LLR for lesions in the difficult posterosuperior segments and major hepatectomies especially in cirrhosis should only be attempted by surgeons who have acquired a minimum experience with 20 LLR.

Indexed as

SurgeonsAdultAgedFemaleHepatectomyHumansLaparoscopyLiver DiseasesMaleMiddle AgedOperative TimeOutcome Assessment, Health CareRetrospective StudiesExperienceLaparoscopic hepatectomyLaparoscopic liver resectionRobotic hepatectomyRobotic liver resection

Identifiers

PMID28916894
OpenAlexW2755469260

What OpenQuestion holds

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.