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Novel laparoscopic training system with continuously perfused ex-vivo porcine liver for hepatobiliary surgery

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Abstract

Objective

To introduce a novel laparoscopic training system with a continuously perfused ex-vivo porcine liver for hepatobiliary surgery.

Background

Existing models for laparoscopic training, such as box trainers and virtual reality simulators, often fail to provide holistic training and real haptic feedback. We have formulated a new training system that addresses these problems.

Methods

Real-Liver Laptrainer consists of a porcine liver, customized mannequin, ex-vivo machine perfusion system, and monitoring software. We made a detailed comparison of Real-Liver Laptrainer with the LapSim virtual reality simulator and the FLS Trainer Box systems. Five laparoscopic surgeons assessed the new system on multiple features. We assessed the performances of 43 trainees who used the new system to perform laparoscopic cholecystectomy (LC) three times.

Results

Real-Liver Laptrainer offered more functions and better tactile feedback than the FLS or LapSim system. All five surgeons graded the quality of the new system as realistic. The utility of the system for training was scored as 3.6 ± 1.1 on a scale of 1–5. Between the first and third attempts, the number of successfully performed LCs increased (9 vs 14 vs 23; P = .011), while the numbers of liver damage incidents (25 vs. 21 vs. 18, P = .303) and gallbladder perforations decreased (17 vs. 12 vs. 9, P = .163). The mean LC operation time significantly decreased (63 vs. 50 vs. 44, P < .0001).

Conclusion

Real-Liver Laptrainer is a feasible, stable, and practical training model that has potential for improving the laparoscopic skills of surgeons.

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Acknowledgements

The authors want to thank all medical students and surgeons for their participation in all trials and the staff at Institute of Advanced Surgical Technology and Engineering of the First Affiliated Hospital of Xi’an Jiaotong University for the help and facilities to carry out this study.

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Correspondence to Yi Lv or Xiaogang Zhang.

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Disclosures

This study was supported by a grant from the National Natural Science Foundation of Equipment awarded to Yi Lv (Grant No. 81127005). Wenyan Liu, Xinglong Zheng, Rongqian Wu, Yinbin Jin, Shu Kong, Jianpeng Li, Jianwen Lu, Huan Yang, Xianghua Xu, Yi Lv, and Xiaogang Zhang have no conflicts of interest or financial ties to disclose.

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Liu, W., Zheng, X., Wu, R. et al. Novel laparoscopic training system with continuously perfused ex-vivo porcine liver for hepatobiliary surgery. Surg Endosc 32, 743–750 (2018). https://doi.org/10.1007/s00464-017-5731-6

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  • DOI: https://doi.org/10.1007/s00464-017-5731-6

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