NCT03721094

Brief Summary

In this study, the investigators examine the cognitive load (CL) and performance of a laparoscopic procedure in immersive virtual reality and controlled virtual reality in a randomized, controlled setup. Virtual reality (VR) simulators combined with head mounted displays (HMDs) enable highly immersive virtual reality (IVR) for surgical skills training, potentially bridging the gap between the simulation environment and real-life operating room (OR) conditions. However, the increased complexity of the learning situation in IVR could potentially induce high CL thereby inhibiting performance and learning.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
31

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Feb 2018

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 14, 2018

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 5, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 5, 2018

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

October 5, 2018

Completed
21 days until next milestone

First Posted

Study publicly available on registry

October 26, 2018

Completed
Last Updated

November 5, 2018

Status Verified

November 1, 2018

Enrollment Period

4 months

First QC Date

October 5, 2018

Last Update Submit

November 1, 2018

Conditions

Outcome Measures

Primary Outcomes (1)

  • Cognitive load

    Measurement of the participants cognitive load during four different time periods during the three procedures. Cognitive load was estimated by secondary-task reaction time. The investigators used an external and commercially available reaction timer (American Educational Products LLC, USA) to measure participants response time (in hundreds seconds) to an auditory stimulus (a beep). Reaction time was measured before and after the simulation to provide an individual baseline, and during the simulation at t=80 s, t=130 s, t=180 s and t=240 s. All reaction time measurements were done in series of four repeated measurements. It was also noted if the reaction time was measured while the participant was using the foot pedal for cauterization in the simulation.

    6 months

Secondary Outcomes (5)

  • Time to completion of procedure

    6 months

  • Diathermy damage

    6 months

  • Blood loss

    6 months

  • Efficience of instrument movements (length)

    6 months

  • Efficience of instrument movements (degrees)

    6 months

Other Outcomes (1)

  • Motion sickness

    6 months

Study Arms (2)

Immersive virtual reality

OTHER

Completing the procedures in immersive virtual reality

Other: Immersive virtual reality

Conventional virtual reality

NO INTERVENTION

Completing the procedures in conventional virtual reality

Interventions

In the IVR environment, four different 360-degrees videos were in sequence played as backdrop during the procedure. The videos reflected real life situations in the operating room with two videos representing calm periods, one video representing a light stressor and one video representing a severe stressor with a bleeding (2 ml/s) being triggered in the simulation. Participants complete the procedures while wearing the head mounted device.

Immersive virtual reality

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • First year resident

You may not qualify if:

  • Previous participation in trials involving laparoscopic training
  • Prior experience with laparoscopic surgery (having performed one or more laparoscopic procedures as primary surgeon, including supervised procedures)
  • Not speaking Danish on a conversational level

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Copenhagen Academy for Medical Education and Simulation

Copenhagen, Østerbro, 2100, Denmark

Location

Related Publications (10)

  • Sorensen SM, Savran MM, Konge L, Bjerrum F. Three-dimensional versus two-dimensional vision in laparoscopy: a systematic review. Surg Endosc. 2016 Jan;30(1):11-23. doi: 10.1007/s00464-015-4189-7. Epub 2015 Apr 4.

    PMID: 25840896BACKGROUND
  • Nagendran M, Gurusamy KS, Aggarwal R, Loizidou M, Davidson BR. Virtual reality training for surgical trainees in laparoscopic surgery. Cochrane Database Syst Rev. 2013 Aug 27;2013(8):CD006575. doi: 10.1002/14651858.CD006575.pub3.

    PMID: 23980026BACKGROUND
  • Moorthy K, Munz Y, Adams S, Pandey V, Darzi A. A human factors analysis of technical and team skills among surgical trainees during procedural simulations in a simulated operating theatre. Ann Surg. 2005 Nov;242(5):631-9. doi: 10.1097/01.sla.0000186298.79308.a8.

    PMID: 16244534BACKGROUND
  • van Merrienboer JJ, Sweller J. Cognitive load theory in health professional education: design principles and strategies. Med Educ. 2010 Jan;44(1):85-93. doi: 10.1111/j.1365-2923.2009.03498.x.

    PMID: 20078759BACKGROUND
  • Huber T, Paschold M, Hansen C, Wunderling T, Lang H, Kneist W. New dimensions in surgical training: immersive virtual reality laparoscopic simulation exhilarates surgical staff. Surg Endosc. 2017 Nov;31(11):4472-4477. doi: 10.1007/s00464-017-5500-6. Epub 2017 Apr 4.

    PMID: 28378077BACKGROUND
  • Andersen SA, Mikkelsen PT, Konge L, Caye-Thomasen P, Sorensen MS. Cognitive Load in Mastoidectomy Skills Training: Virtual Reality Simulation and Traditional Dissection Compared. J Surg Educ. 2016 Jan-Feb;73(1):45-50. doi: 10.1016/j.jsurg.2015.09.010. Epub 2015 Oct 21.

    PMID: 26481267BACKGROUND
  • Strandbygaard J, Bjerrum F, Maagaard M, Winkel P, Larsen CR, Ringsted C, Gluud C, Grantcharov T, Ottesen B, Sorensen JL. Instructor feedback versus no instructor feedback on performance in a laparoscopic virtual reality simulator: a randomized trial. Ann Surg. 2013 May;257(5):839-44. doi: 10.1097/SLA.0b013e31827eee6e.

    PMID: 23295321BACKGROUND
  • Thorson CM, Kelly JP, Forse RA, Turaga KK. Can we continue to ignore gender differences in performance on simulation trainers? J Laparoendosc Adv Surg Tech A. 2011 May;21(4):329-33. doi: 10.1089/lap.2010.0368.

    PMID: 21563940BACKGROUND
  • White MT, Welch K. Does gender predict performance of novices undergoing Fundamentals of Laparoscopic Surgery (FLS) training? Am J Surg. 2012 Mar;203(3):397-400; discussion 400. doi: 10.1016/j.amjsurg.2011.09.020.

    PMID: 22364906BACKGROUND
  • Gianaros PJ, Muth ER, Mordkoff JT, Levine ME, Stern RM. A questionnaire for the assessment of the multiple dimensions of motion sickness. Aviat Space Environ Med. 2001 Feb;72(2):115-9.

    PMID: 11211039BACKGROUND

Study Officials

  • Lars Konge, PhD

    Copenhagen Academy for Medical Education and Simulation

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
Participants and the principal investigators were blinded to performance metrics by the simulator during the supervised procedure and the three test procedures. Participants and the data collector could not be blinded to the allocation/intervention. The investigator in charge of the statistical analysis was blinded to participants' group allocation.
Purpose
OTHER
Intervention Model
PARALLEL
Model Details: A single-center randomized trial was designed according to the CONSORT statement
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

October 5, 2018

First Posted

October 26, 2018

Study Start

February 14, 2018

Primary Completion

June 5, 2018

Study Completion

June 5, 2018

Last Updated

November 5, 2018

Record last verified: 2018-11

Data Sharing

IPD Sharing
Will not share

Locations