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Abstract

Objectives: To determine if the METI laparoscopic surgical simulator can discriminate between novices and experts and to assess learning curves among novices. Methods: Twenty novices and 5 experts performed five repetitions on the following modules: place arrow, retract, dissect, and traverse tube. For each module, median baseline performance was calculated. Novices performed 35 additional repetitions to assess learning with practice. Results: Experts out-performed novices at baseline for completion time of the dissect, place arrow, and traverse tube modules, as well as for error frequency on the traverse tube and retract modules. Novices' performance times improved significantly with practice, approaching the experts' baseline in all modules. Conclusion: The METI simulator exhibits construct validity on three of four basic-skills modules when considering completion time and on two modules when considering error frequency. Among novices, learning occurred with additional repetitions. Whether acquired skills transfer to the actual surgical environment has yet to be determined.

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References

Aggarwal

Grantcharov

T.P.

, et al. (2006). An evidence-based virtual reality training program for novice laparoscopic surgeons. Annals of Surgery, 244 (2), 310–314.

Brunner

W.C

Korndorffer

J.R.

, et al. (2004). Laparoscopic virtual reality training: Are 30 repetitions enough? Journal of Surgical Research 122(2), 150–156.

Brunner

W. C.

Korndorffer

J.R.

, et al. (2005). Determining standards for laparoscopic proficiency using virtual reality. The American Surgeon 71(1), 29–35.

Crothers

I. R.

Gallagher

A.G.

, et al. (1999). Experienced laparoscopic surgeons are automated to the ‘fulcrum effect’: An ergonomic demonstration. Endoscopy 31, 365–369.

Gallagher

A. G.

McClure

, et al. (1999). Virtual reality training in laparoscopic surgery: A preliminary assessment of minimally invasive surgical trainer virtual reality (MIST VR). Endoscopy 31, 310–313.

Gallagher

A. G.

McClure

, et al. (1998). An ergonomic analysis of the ‘fulcrum effect’ in endoscopic skill acquisition. Endoscopy 30, 617–620.

Grantcharov

T. P.

Bardram

, et al. (2003). Learning curves and impact of previous operative experience on performance on a virtual reality simulator to test laparoscopic surgical skills. The American Journal of Surgery 185, 146–149.

Grantcharov

T. P.

Kristiansen

V.B.

, et al. (2004). Randomized clinical trial of virtual reality simulation for laparoscopic skills training. British Journal of Surgery 91, 146–150.

Hunter

J.G.

(1997). Advanced laparoscopic surgery. American Journal of Surgery 173, 14–19.

10.

Jones

D. B.

Brewer

J.D.

, et al. (1996). The influence of three-dimensional video systems on laparoscopic task performance. Surgical Laparoscopy & Endoscopy 6(3), 191–197.

11.

Korndorffer

J. R.

Scott

D.J.

, et al. (2005). Developing and testing competency levels for laparoscopic skills training. Archives of Surgery 140(1), 80–84.

12.

Mackay

Morgan

et al. (2002). Practice distribution in procedural skills training: A randomized controlled trial. Surgical Endoscopy 16, 957–961.

13.

Maithel

Sierra

, et al. (2006). Construct and face validity of MIST-VR, Endotower, and CELTS: Are we ready for skills assessment using simulators? Surgical Endoscopy 20, 104–112.

14.

C. Y.

Toumpoulis

I.K.

, et al. (2005). The Lap-Sim: A learning environment for both experts and novices. Studies in Health Technologies and Informatics 111, 414–417.

15.

Scott

D. J.

Bergen

P.C.

, et al. (2000). Laparo-scopic training on bench models: Better and more cost effective than operating room experience? Journal of the American College of Surgeons 191(3), 272–283.

16.

Scott

D. J.

Young

W.N.

, et al. (2001). Laparo-scopic skills training. The American Journal of Surgery 182, 137–142.

17.

Seymour

N. E.

Gallagher

A.G.

, et al. (2002). Virtual reality training improves operating room performance: Results of a randomized, double-blinded study. Annals of Surgery 236, 458–463.

18.

Taffinder

Sutton

, et al. (1998). Validation of virtual reality to teach and assess psychomotor skills in laparoscopic surgery: Results from randomized controlled studies using the MIST VR laparoscopic simulator. Studies in Health Technologies and Informatics 50, 124–130.

19.

Valentine

R.J.

Rege

R.V.

(2004). Integrating technical competency into the surgical curriculum: Doing more with less. Surgical Clinics of North America 84, 1647–1667.

20.

Woodrum

D. T.

Andreatta

P.B.

, et al. (2006). Construct validity of the LapSim laparoscopic surgical simulator. The American Journal of Surgery 191, 28–32.

Initial Construct Validation of a Laparoscopic Surgical Simulator

Abstract

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