A self-designed liver circle for on-demand Pringle's manoeuver in laparoscopic liver resection Gao Z, Li Z, Zhou B, Chen L, Shen Z, Jiang Y, Zheng X, Xiang J, Zhang Q, Wang W, Yan S,

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A self-designed liver circle for on-demand Pringle's manoeuver in laparoscopic liver resection Zhenzhen Gao¹, Zhiwei Li², Bo Zhou¹, Lifeng Chen³, Zhenhua Shen⁴, Yuancong Jiang¹, Xiang Zheng¹, Jie Xiang², Qiyi Zhang¹, Weilin Wang¹, Sheng Yan¹ ¹ Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China ² Department of Surgery, Division of Hepatobiliary and Pancreatic Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China ³ Department of Medical Engineering, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China ⁴ Department of Surgery, Division of Hepatobiliary and Pancreatic Surgery, Huzhou Central Hospital, Huzhou, Zhejiang, China Correspondence Address: Sheng Yan, Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, 88 Jiefang Road, Hangzhou 310003 China Weilin Wang, Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, 88 Jiefang Road, Hangzhou 310003 China Source of Support: None, Conflict of Interest: None DOI: 10.4103/jmas.JMAS_130_19

Background: Laparoscopic liver resection (LLR) allows minimal incisions and relatively quicker post-operative recovery, while intraoperative massive haemorrhage led to conversion to laparotomy. This study aimed to introduce a new, safe and convenient device to serve as Pringle's manoeuver according to the demand in LLR. Methods: A liver circle consisting of a hole and a round stem with an obtuse small head was made by medical silica gel. It was applied in LLR to perform on-demand Pringle's manoeuver and developed its function in inferior vena cava (IVC) occlusion. The time of performing Pringle's manoeuver by liver circle, extracorporeal tourniquet and endo intestinal clip under laparoscopic simulator and LLR was compared. Results: The liver circle was successfully applied to perform Pringle's manoeuver, IVC exposure and occlusion. It took less time in the occluding step of Pringle's manoeuver than the extracorporeal tourniquet (4.15 ± 0.35 s vs. 9.90 ± 1.15 s,P < 0.05) and the endo intestinal clip (4.15 ± 0.35 s vs. 47.91 ± 3.98 s,P< 0.05) under LLR. The total manipulating time for Pringle's manoeuver with liver circle remained the shortest, and the advantages were more obvious with increased frequencies of intermittent Pringle's manoeuver. Conclusion: The new-designed liver circle is more convenient compared to other techniques in performing Pringle's manoeuver, especially the intermittent Pringle's manoeuver in LLR. It can be used to perform on-demand hepatic blood inflow occlusion in every LLR by pre-circling the hepatoduodenal ligament to control bleeding during surgery. It can also be applied to expose the surgical field of vision and perform IVC occlusion to reduce intraoperative blood loss.

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    -  Gao Z
    -  Li Z
    -  Zhou B
    -  Chen L
    -  Shen Z
    -  Jiang Y
    -  Zheng X
    -  Xiang J
    -  Zhang Q
    -  Wang W
    -  Yan S

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