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Laparoendoscopic single-site simple nephrectomy using a magnetic anchoring system in a porcine model.


ABSTRACT: Magnetic anchoring devices may reduce the number of port sites needed in laparoscopic surgery. In this study, we prospectively assessed the feasibility of using a magnetic anchoring and guidance system (MAGS) in laparoendoscopic single-site (LESS) surgery performed by novices.A total of 10 LESS simple nephrectomies were performed with or without MAGS in a nonsurvival porcine model by 6 operators with no previous LESS surgery experience. After installation of the homemade single port, an intra-abdominal magnet was fixed to the renal parenchyma with suturing and stabilized by an external magnet placed on the flank so that the position of the kidney could be easily changed by moving the external handheld magnet. The length of the procedure and any intraoperative complications were evaluated.Operative time (mean±standard deviation) was shorter in the group using the magnetic anchoring device (M-LESS-N) than in the group with conventional LESS nephrectomy (C-LESS-N) (63±20.8 minutes vs. 82±40.7 minutes, respectively). Although all nephrectomies were completed uneventfully in the M-LESS-N group, renal vein injury occurred during dissection of the renal hilum in two cases of C-LESS-N and was resolved by simultaneous transection of the renal artery and vein with an Endo-GIA stapler.LESS-N using MAGS is a feasible technique for surgeons with no LESS surgery experience. Taking into account the 2 cases of renal vein injury in the C-LESS-N group, the application of MAGS may be beneficial for overcoming the learning curve of LESS surgery.

SUBMITTER: Choi YH 

PROVIDER: S-EPMC4869569 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature

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Laparoendoscopic single-site simple nephrectomy using a magnetic anchoring system in a porcine model.

Choi Young Hyo YH   Lee Hye Won HW   Lee Seo Yeon SY   Han Deok Hyun DH   Seo Seong Il SI   Jeon Seong Soo SS   Lee Hyun Moo HM   Choi Han Yong HY   Jeong Byong Chang BC  

Investigative and clinical urology 20160503 3


<h4>Purpose</h4>Magnetic anchoring devices may reduce the number of port sites needed in laparoscopic surgery. In this study, we prospectively assessed the feasibility of using a magnetic anchoring and guidance system (MAGS) in laparoendoscopic single-site (LESS) surgery performed by novices.<h4>Materials and methods</h4>A total of 10 LESS simple nephrectomies were performed with or without MAGS in a nonsurvival porcine model by 6 operators with no previous LESS surgery experience. After install  ...[more]

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