Laser visual guidance versus two-dimensional vision in laparoscopy: a randomized trial

Stine Maya Dreier Sørensen; Oria Mahmood; Lars Konge; Ebbe Thinggaard; Flemming Bjerrum

doi:10.1007/s00464-016-4937-3

Laser visual guidance versus two-dimensional vision in laparoscopy: a randomized trial

Stine Maya Dreier Sørensen, Oria Mahmood, Lars Konge, Ebbe Thinggaard, Flemming Bjerrum

Department of Clinical Medicine

3 Citations (Scopus)

54 Downloads (Pure)

Abstract

BACKGROUND: During laparoscopy, the surgeon's loss of depth perception and spatial orientation is problematic. Laser visual guidance (LVG) is an innovative technology that improves depth perception to enhance the visual field. In this trial, we examined the effect of LVG on surgical novices' motor skills, quality of task performance, and cognitive workload.

METHODS: We designed a randomized controlled trial following the CONSORT statement. Thirty-two surgical novices completed the Training and Assessment of Basic Laparoscopic Techniques (TABLT) test. The first attempt allowed participants to familiarize themselves with the exercises. We then randomized the participants, and they completed a test session using either LVG or conventional two-dimensional vision.

RESULTS: We found no significant difference between using the LVG tool and conventional 2D vision; however, both the mean completion time and movements used were less in the LVG group: Mean time used in the LVG group was 1288 s (95 % CI 1188-1388) versus 1354 s (95 % CI 1190-1518) (p = 0.45); mean angular path length used in the LVG group was 24,049° (95 % CI 20,761-27,336) versus 26,014° (95 % CI 22,059-29,970) (p = 0.42); mean path length in the LVG group was 4560 cm (95 % CI 3971-5,149 cm) versus 5062 cm (95 % CI 4328-5797), (p = 0.26). Moreover, the mean TABLT performance score was higher in the LVG group compared with the 2D group, although not significant: 379 (95 % CI 352-405) versus 338 (95 % CI 288-387) (p = 0.14). No significant difference was found between the groups' cognitive workloads.

CONCLUSION: We found no significant improvement of laparoscopic motor skills when using LVG, although a tendency toward improved performance was seen. LVG could have the potential to help novice surgeons acquire basic laparoscopic; however, further development of the concept and validation is needed to confirm this.

Original language	English
Journal	Surgical Endoscopy
Volume	31
Issue number	1
Pages (from-to)	112-118
ISSN	0930-2794
DOIs	https://doi.org/10.1007/s00464-016-4937-3
Publication status	Published - 1 Jan 2017

Keywords

Adult
Clinical Competence
Depth Perception
Female
Humans
Laparoscopy/education
Lasers
Male
Motor Skills
Orientation, Spatial
Simulation Training
Young Adult

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title = "Laser visual guidance versus two-dimensional vision in laparoscopy: a randomized trial",

abstract = "BACKGROUND: During laparoscopy, the surgeon's loss of depth perception and spatial orientation is problematic. Laser visual guidance (LVG) is an innovative technology that improves depth perception to enhance the visual field. In this trial, we examined the effect of LVG on surgical novices' motor skills, quality of task performance, and cognitive workload.METHODS: We designed a randomized controlled trial following the CONSORT statement. Thirty-two surgical novices completed the Training and Assessment of Basic Laparoscopic Techniques (TABLT) test. The first attempt allowed participants to familiarize themselves with the exercises. We then randomized the participants, and they completed a test session using either LVG or conventional two-dimensional vision.RESULTS: We found no significant difference between using the LVG tool and conventional 2D vision; however, both the mean completion time and movements used were less in the LVG group: Mean time used in the LVG group was 1288 s (95 % CI 1188-1388) versus 1354 s (95 % CI 1190-1518) (p = 0.45); mean angular path length used in the LVG group was 24,049° (95 % CI 20,761-27,336) versus 26,014° (95 % CI 22,059-29,970) (p = 0.42); mean path length in the LVG group was 4560 cm (95 % CI 3971-5,149 cm) versus 5062 cm (95 % CI 4328-5797), (p = 0.26). Moreover, the mean TABLT performance score was higher in the LVG group compared with the 2D group, although not significant: 379 (95 % CI 352-405) versus 338 (95 % CI 288-387) (p = 0.14). No significant difference was found between the groups' cognitive workloads.CONCLUSION: We found no significant improvement of laparoscopic motor skills when using LVG, although a tendency toward improved performance was seen. LVG could have the potential to help novice surgeons acquire basic laparoscopic; however, further development of the concept and validation is needed to confirm this.",

keywords = "Adult, Clinical Competence, Depth Perception, Female, Humans, Laparoscopy/education, Lasers, Male, Motor Skills, Orientation, Spatial, Simulation Training, Young Adult",

author = "S{\o}rensen, {Stine Maya Dreier} and Oria Mahmood and Lars Konge and Ebbe Thinggaard and Flemming Bjerrum",

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doi = "10.1007/s00464-016-4937-3",

language = "English",

volume = "31",

pages = "112--118",

journal = "Surgical Endoscopy and Other Interventional Techniques",

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T1 - Laser visual guidance versus two-dimensional vision in laparoscopy

T2 - a randomized trial

AU - Sørensen, Stine Maya Dreier

AU - Mahmood, Oria

AU - Konge, Lars

AU - Thinggaard, Ebbe

AU - Bjerrum, Flemming

PY - 2017/1/1

Y1 - 2017/1/1

N2 - BACKGROUND: During laparoscopy, the surgeon's loss of depth perception and spatial orientation is problematic. Laser visual guidance (LVG) is an innovative technology that improves depth perception to enhance the visual field. In this trial, we examined the effect of LVG on surgical novices' motor skills, quality of task performance, and cognitive workload.METHODS: We designed a randomized controlled trial following the CONSORT statement. Thirty-two surgical novices completed the Training and Assessment of Basic Laparoscopic Techniques (TABLT) test. The first attempt allowed participants to familiarize themselves with the exercises. We then randomized the participants, and they completed a test session using either LVG or conventional two-dimensional vision.RESULTS: We found no significant difference between using the LVG tool and conventional 2D vision; however, both the mean completion time and movements used were less in the LVG group: Mean time used in the LVG group was 1288 s (95 % CI 1188-1388) versus 1354 s (95 % CI 1190-1518) (p = 0.45); mean angular path length used in the LVG group was 24,049° (95 % CI 20,761-27,336) versus 26,014° (95 % CI 22,059-29,970) (p = 0.42); mean path length in the LVG group was 4560 cm (95 % CI 3971-5,149 cm) versus 5062 cm (95 % CI 4328-5797), (p = 0.26). Moreover, the mean TABLT performance score was higher in the LVG group compared with the 2D group, although not significant: 379 (95 % CI 352-405) versus 338 (95 % CI 288-387) (p = 0.14). No significant difference was found between the groups' cognitive workloads.CONCLUSION: We found no significant improvement of laparoscopic motor skills when using LVG, although a tendency toward improved performance was seen. LVG could have the potential to help novice surgeons acquire basic laparoscopic; however, further development of the concept and validation is needed to confirm this.

AB - BACKGROUND: During laparoscopy, the surgeon's loss of depth perception and spatial orientation is problematic. Laser visual guidance (LVG) is an innovative technology that improves depth perception to enhance the visual field. In this trial, we examined the effect of LVG on surgical novices' motor skills, quality of task performance, and cognitive workload.METHODS: We designed a randomized controlled trial following the CONSORT statement. Thirty-two surgical novices completed the Training and Assessment of Basic Laparoscopic Techniques (TABLT) test. The first attempt allowed participants to familiarize themselves with the exercises. We then randomized the participants, and they completed a test session using either LVG or conventional two-dimensional vision.RESULTS: We found no significant difference between using the LVG tool and conventional 2D vision; however, both the mean completion time and movements used were less in the LVG group: Mean time used in the LVG group was 1288 s (95 % CI 1188-1388) versus 1354 s (95 % CI 1190-1518) (p = 0.45); mean angular path length used in the LVG group was 24,049° (95 % CI 20,761-27,336) versus 26,014° (95 % CI 22,059-29,970) (p = 0.42); mean path length in the LVG group was 4560 cm (95 % CI 3971-5,149 cm) versus 5062 cm (95 % CI 4328-5797), (p = 0.26). Moreover, the mean TABLT performance score was higher in the LVG group compared with the 2D group, although not significant: 379 (95 % CI 352-405) versus 338 (95 % CI 288-387) (p = 0.14). No significant difference was found between the groups' cognitive workloads.CONCLUSION: We found no significant improvement of laparoscopic motor skills when using LVG, although a tendency toward improved performance was seen. LVG could have the potential to help novice surgeons acquire basic laparoscopic; however, further development of the concept and validation is needed to confirm this.

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KW - Laparoscopy/education

KW - Lasers

KW - Male

KW - Motor Skills

KW - Orientation, Spatial

KW - Simulation Training

KW - Young Adult

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DO - 10.1007/s00464-016-4937-3

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C2 - 27317036

SN - 0930-2794

VL - 31

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JO - Surgical Endoscopy and Other Interventional Techniques

JF - Surgical Endoscopy and Other Interventional Techniques

IS - 1

ER -

Laser visual guidance versus two-dimensional vision in laparoscopy: a randomized trial

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Keywords

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