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Effectiveness and safety of single-port versus multi-port laparoscopic surgery for treating liver diseases: a meta-analysis

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Abstract

Objective

To compare the effectiveness and safety of single-port versus multi-port laparoscopic surgery for treating liver diseases.

Methods

Several databases were systematically searched for randomized controlled trials, cohort studies, and case–control studies on the use of single-port versus multi-port laparoscopic surgery to treat liver diseases from their inception until March 24, 2016. The primary outcomes were the operative time, volume of intraoperative blood loss, rate of postoperative complications, median length of postoperative stay, recovery time of gastrointestinal function, volume of postoperative drainage, and postoperative drainage time. The study-specific effect sizes and their 95 % confidence interval were all combined to calculate the pooled value by using a random-effects model.

Results

A total of nine studies were included, which involved 277 patients. The total and subgroup data were combined by meta-analysis. This meta-analysis showed that single-port and multi-port laparoscopic liver surgery for treating liver diseases did not differ in terms of operative time (P = 0.48), rate of postoperative complications (P = 0.56), median length of postoperative stay (P = 0.80), and recovery time of gastrointestinal function (P = 0.54). For liver diseases, the single-port group exhibited a lower volume of intraoperative blood loss than that presented by the multi-port group (P = 0.0006). In the hepatic resection subgroup, a lower volume of intraoperative blood loss was noted in the single-port group (P < 0.0001). By contrast, in the hepatic cyst subgroup, the single-port group showed a higher volume of intraoperative blood loss (P = 0.02) but a shorter median length of postoperative stay (P = 0.02). The findings of the potential subgroup analysis in these outcomes were consistent with the total data.

Conclusion

Compared with multi-port laparoscopic surgery, the single-port method showed comparable effectiveness and safety for the treatment of liver diseases in terms of current evidence.

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Acknowledgments

We thank Jin Xia and Jian-Ying Zhang for assistance in statistical analysis. We also thank Professor Jian-Ping Gong and Co-chief superintendent nurse Xiao-Mei Wang for modifying our initial manuscript.

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Authors and Affiliations

  1. Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China

    Yun-Bing Wang, Jin Xia, Jian-Ping Gong & Xiao-Mei Wang

  2. Department of Radiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China

    Jian-Ying Zhang

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  1. Yun-Bing Wang
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Correspondence to Xiao-Mei Wang.

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Yun-Bing Wang, Jin Xia, Jian-Ying Zhang, Jian-Ping Gong, and Xiao-Mei Wang have no conflicts of interest or financial ties to disclose.

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Wang, YB., Xia, J., Zhang, JY. et al. Effectiveness and safety of single-port versus multi-port laparoscopic surgery for treating liver diseases: a meta-analysis. Surg Endosc 31, 1524–1537 (2017). https://doi.org/10.1007/s00464-016-5199-9

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