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Comparison Between Magnetic Anchoring and Guidance System Camera-Assisted Laparoendoscopic Single-Site Surgery Nephrectomy and Conventional Laparoendoscopic Single-Site Surgery Nephrectomy in a Porcine Model: Focus on Ergonomics and Workload Profiles

Authors
 Woong Kyu Han  ;  Yung K. Tan  ;  Ephrem O. Olweny  ;  Gang Yin  ;  Zhuo-Wei Liu  ;  Stephen Faddegon  ;  Daniel J. Scott  ;  Jeffrey A. Cadeddu 
Citation
 JOURNAL OF ENDOUROLOGY, Vol.27(4) : 490-496, 2013 
Journal Title
JOURNAL OF ENDOUROLOGY
ISSN
 0892-7790 
Issue Date
2013
MeSH
Animals ; Clinical Competence ; Ergonomics* ; Laparoscopy/instrumentation* ; Magnetics/instrumentation* ; Models, Animal ; Nephrectomy/instrumentation* ; Nephrectomy/methods* ; Physicians ; Sus scrofa/surgery* ; Time Factors ; Workload*
Keywords
Animals ; Clinical Competence ; Ergonomics* ; Laparoscopy/instrumentation* ; Magnetics/instrumentation* ; Models, Animal ; Nephrectomy/instrumentation* ; Nephrectomy/methods* ; Physicians ; Sus scrofa/surgery* ; Time Factors ; Workload*
Abstract
PURPOSE:
To compare surgeon-assessed ergonomic and workload demands of magnetic anchoring and guidance system (MAGS) laparoendoscopic single-site surgery (LESS) nephrectomy with conventional LESS nephrectomy in a porcine model.
METHODS:
Participants included two expert and five novice surgeons who each performed bilateral LESS nephrectomy in two nonsurvival animals using either the MAGS camera or conventional laparoscope. Task difficulty and workload demands of the surgeon and camera driver were assessed using the validated National Aeronautics and Space Administration Task Load Index (NASA-TLX) questionnaire. Surgeons were also asked to score 6 parameters on a Likert scale (range 1=low/easy to 5=high/hard): procedure-associated workload, ergonomics, technical challenge, visualization, accidental events, and instrument handling. Each step of the nephrectomy was also timed and instrument clashing was quantified.
RESULTS:
Scores for each parameter on the Likert scale were significantly lower for MAGS-LESS nephrectomy. Mean number of internal and external clashes were significantly lower for the MAGS camera (p<0.001). Mean task times for each procedure were shorter for experts than for novices, but this was not statistically significant. NASA-TLX workload ratings by the surgeon and camera driver showed that MAGS resulted in a significantly lower workload than the conventional laparoscope during LESS nephrectomy (p<0.05).
CONCLUSIONS:
The use of the MAGS camera during LESS nephrectomy lowers the task workload for both the surgeon and camera driver when compared to conventional laparoscope use. Subjectively, it appears to also improve surgeons' impressions of ergonomics and technical challenge. Pending approval for clinical use, further evaluation in the clinical setting is warranted.
Full Text
http://online.liebertpub.com/doi/abs/10.1089/end.2012.0484
DOI
10.1089/end.2012.0484
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Urology (비뇨의학교실) > 1. Journal Papers
Yonsei Authors
Han, Woong Kyu(한웅규) ORCID logo https://orcid.org/0000-0002-2527-4046
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/86713
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