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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

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Abstract

Background

Most 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.

Methods

Retrospective 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.

Results

As 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.

Conclusion

LLR 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.

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Authors and Affiliations

  1. Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore

    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

  2. Duke-National University of Singapore Medical School, Singapore, Singapore

    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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  1. Brian K. P. Goh
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  2. Jin-Yao Teo
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  3. Ser-Yee Lee
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  8. London L. P. J. Ooi
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  9. Alexander Y. F. Chung
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  10. Chung-Yip Chan
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Corresponding author

Correspondence to Brian K. P. Goh.

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Disclosures

Dr. Brian K. P. Goh, Dr. Jin-Yao Teo, Dr. Ser-Yee Lee, Dr. Juinn-Huar Kam, Dr. Peng-Chung Cheow, Dr. Premaraj Jeyaraj, Dr. Pierce K. H. Chow, Dr. London L. P. J. Ooi, Dr. Alexander Y. F. Chung, and Dr. Chung-Yip Chan have no conflicts of interest or financial ties to disclose.

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Goh, B.K.P., Teo, JY., Lee, SY. et al. 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. Surg Endosc 32, 1802–1811 (2018). https://doi.org/10.1007/s00464-017-5864-7

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  • DOI: https://doi.org/10.1007/s00464-017-5864-7

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