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J Minim Invasive Gynecol. 2015 Nov-Dec;22(7):1271-7. doi: 10.1016/j.jmig.2015.07.015. Epub 2015 Jul 26.

Validation of the VBLaST: A Virtual Peg Transfer Task in Gynecologic Surgeons.

Author information

1
Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts. Electronic address: cawtrey@bidmc.harvard.edu.
2
Department of Computer Engineering, IBISC Laboratory, University of Evry, Evry, France; Department of Surgery, Cambridge Health Alliance, Harvard Medical School, Cambridge, Massachusetts.
3
Department of Surgery, Cambridge Health Alliance, Harvard Medical School, Cambridge, Massachusetts.
4
Center for Modeling, Simulation and Imaging in Medicine, Rensselaer Polytechnic Institute, Troy, New York.
5
Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts.
6
Department of Biomedical, Industrial and Human Factors Engineering, Wright State University, Dayton, Ohio.

Abstract

STUDY OBJECTIVE:

To validate the Virtual Basic Laparoscopic Skill Trainer (VBLaST-PT; the peg transfer task) for concurrent validity based on its ability to differentiate between novice, intermediate, and expert groups of gynecologists, and the gynecologists' subjective preference between the physical Fundamentals of Laparoscopic Surgery (FLS) system and the virtual reality system.

DESIGN:

Prospective study (Canadian Task Force II-2).

SETTING:

Academic medical center.

PARTICIPANTS:

Obstetrics and gynecology residents (n = 18) and attending gynecologists (n = 9).

INTERVENTIONS:

Twenty-seven subjects were divided into 3 groups: novices (n = 9), intermediates (n = 9), and experts (n = 9). All subjects performed 10 trials of the peg transfer on each simulator. Assessment of laparoscopic performance was based on FLS scoring, whereas a questionnaire was used for subjective evaluation.

MEASUREMENTS AND MAIN RESULTS:

The performance scores in the 2 simulators were nearly identical. Experts performed better than intermediates and novices in both the FLS trainer and the VBLAST, and intermediates performed better than novices in both simulators. The results also show a significant learning effect on both trainers for all subgroups; however, the greatest learning effect was in the novice group for both trainers. Subjectively, 74% participants preferred the FLS over the VBLaST for training laparoscopic surgical skills.

CONCLUSION:

This study demonstrates that the peg transfer task was reproduced well in the VBLaST in gynecologic surgeons and trainees. The VBLaST has the potential to be a valuable tool in laparoscopic training for gynecologic surgeons.

KEYWORDS:

Laparoscopy; Surgical education; Surgical skills; Virtual trainer

PMID:
26216094
PMCID:
PMC4744817
DOI:
10.1016/j.jmig.2015.07.015
[Indexed for MEDLINE]
Free PMC Article

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