NCT01930344

Brief Summary

During laparoscopic surgery, your surgeon operates through 'keyhole' incisions in your abdomen. These allow long tools and a camera to pass to perform the surgery and allow the surgeon to see inside you. The cameras images are seen on a television screen, and this is viewed, like you watch television at home, in a two-dimensional (2D), form. This can make performing laparoscopic surgery very challenging, as you have to learn to appreciate depth while performing surgical tasks. Recent advances in viewing technology mean we now have the capability for comfortable three-dimensional (3D) viewing of laparoscopic surgery, and many centers have shown its superiority over 2D in lab-based experiments. However, this technology has never been compared against our normal gold standard 2D imaging in laparoscopic operations. This study aims to investigate whether there is a quantifiable benefit in using these new 3D imaging systems over 2D for laparoscopy, as we hypothesise that there is a marked benefit using 3D over 2D. Patients who have been placed on the waiting list for keyhole surgery to remove their gallbladder will be invited to take part in the study. If they agree, they will undergo the standard operation for removing their gallbladder as planned already. At the beginning of the operation they will be randomised (selected by chance) into one of two groups. One group will have their surgery performed to our current 'Gold standard' with the surgeon using a 2D camera and screen. The other group will have the exact same operation but with the surgeon using a 3D camera and screen. The intra-abdominal part of the operation will be recorded and viewed by an independent observer who is a surgeon, to assess for technical performance differences between operations performed in 2D and 3D, as well as time taken for the surgery. There are no extra risks to taking part and being randomised to the 3D group. The laparoscopic camera is the same size as a 2D camera and used in the same way. There are no real disadvantages, as patients will still undergo the operation they were booked for and will experience no change in their treatment. The aim is to compare 2D and 3D Day Case Laparoscopic Cholecystectomies, to see if there is a marked difference with this new technology. Lab based studies imply that 3D imaging systems reduce surgical errors and operating time therefore could improve patient safety. This study may help improve laparoscopic surgery for future patients.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
114

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started May 2013

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

May 1, 2013

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

August 23, 2013

Completed
5 days until next milestone

First Posted

Study publicly available on registry

August 28, 2013

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2014

Completed
Last Updated

December 3, 2015

Status Verified

December 1, 2015

Enrollment Period

1.4 years

First QC Date

August 23, 2013

Last Update Submit

December 2, 2015

Conditions

Keywords

stereopsis3D laparoscopyOCHRA

Outcome Measures

Primary Outcomes (1)

  • Time of surgery

    Primary outcome is time of completion of the defined three steps of the operation, which is measured from the recorded video of the surgery.

    Measured at time of surgery

Secondary Outcomes (1)

  • Errors enacted

    Assessed from video recording of the surgery

Study Arms (2)

3D laparoscopic visual system

ACTIVE COMPARATOR

Laparoscopic cholecystectomy to be performed with 3D laparoscopic imaging system

Device: 3D Laparoscopic visual system

2D Laparoscopic Visual System

PLACEBO COMPARATOR

Laparoscopic cholecystectomy to be performed using normal, 2D, laparoscopic visual system

Device: 2D Laparoscopic visual system

Interventions

Three-dimensional endoscope used for surgery - multiple company products - and passive polarising three-dimensional laparoscopic displays;

3D laparoscopic visual system

Standard 2D HD Laparoscopic Visual System

2D Laparoscopic Visual System

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Listed for elective day case laparoscopic cholecystectomy

You may not qualify if:

  • Previous upper abdominal surgery
  • Significant previous gallbladder or pancreatic disease
  • Unable to consent (due to cultural, language or neurological barriers)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Royal Surrey County Hospital

Guildford, Surrey, GU2 7XX, United Kingdom

Location

Related Publications (11)

  • Hanna GB, Shimi SM, Cuschieri A. Randomised study of influence of two-dimensional versus three-dimensional imaging on performance of laparoscopic cholecystectomy. Lancet. 1998 Jan 24;351(9098):248-51. doi: 10.1016/S0140-6736(97)08005-7.

    PMID: 9457094BACKGROUND
  • Jourdan IC, Dutson E, Garcia A, Vleugels T, Leroy J, Mutter D, Marescaux J. Stereoscopic vision provides a significant advantage for precision robotic laparoscopy. Br J Surg. 2004 Jul;91(7):879-85. doi: 10.1002/bjs.4549.

    PMID: 15227695BACKGROUND
  • Smith R, Day A, Rockall T, Ballard K, Bailey M, Jourdan I. Advanced stereoscopic projection technology significantly improves novice performance of minimally invasive surgical skills. Surg Endosc. 2012 Jun;26(6):1522-7. doi: 10.1007/s00464-011-2080-8. Epub 2012 Jan 11.

    PMID: 22234585BACKGROUND
  • McLachlan G. From 2D to 3D: the future of surgery? Lancet. 2011 Oct 15;378(9800):1368. doi: 10.1016/s0140-6736(11)61597-3. No abstract available.

    PMID: 22010263BACKGROUND
  • Storz P, Buess GF, Kunert W, Kirschniak A. 3D HD versus 2D HD: surgical task efficiency in standardised phantom tasks. Surg Endosc. 2012 May;26(5):1454-60. doi: 10.1007/s00464-011-2055-9. Epub 2011 Dec 17.

    PMID: 22179446BACKGROUND
  • Gurusamy KS, Sahay S, Davidson BR. Three dimensional versus two dimensional imaging for laparoscopic cholecystectomy. Cochrane Database Syst Rev. 2011 Jan 19;(1):CD006882. doi: 10.1002/14651858.CD006882.pub2.

    PMID: 21249683BACKGROUND
  • Joice P, Hanna GB, Cuschieri A. Errors enacted during endoscopic surgery--a human reliability analysis. Appl Ergon. 1998 Dec;29(6):409-14. doi: 10.1016/s0003-6870(98)00016-7.

    PMID: 9796785BACKGROUND
  • Miskovic D, Ni M, Wyles SM, Parvaiz A, Hanna GB. Observational clinical human reliability analysis (OCHRA) for competency assessment in laparoscopic colorectal surgery at the specialist level. Surg Endosc. 2012 Mar;26(3):796-803. doi: 10.1007/s00464-011-1955-z. Epub 2011 Nov 1.

    PMID: 22042584BACKGROUND
  • Tang B, Hanna GB, Joice P, Cuschieri A. Identification and categorization of technical errors by Observational Clinical Human Reliability Assessment (OCHRA) during laparoscopic cholecystectomy. Arch Surg. 2004 Nov;139(11):1215-20. doi: 10.1001/archsurg.139.11.1215.

    PMID: 15545569BACKGROUND
  • LaGrange CA, Clark CJ, Gerber EW, Strup SE. Evaluation of three laparoscopic modalities: robotics versus three-dimensional vision laparoscopy versus standard laparoscopy. J Endourol. 2008 Mar;22(3):511-6. doi: 10.1089/end.2007.0241.

    PMID: 18269320BACKGROUND
  • Schwab KE, Curtis NJ, Whyte MB, Smith RV, Rockall TA, Ballard K, Jourdan IC. 3D laparoscopy does not reduce operative duration or errors in day-case laparoscopic cholecystectomy: a randomised controlled trial. Surg Endosc. 2020 Apr;34(4):1745-1753. doi: 10.1007/s00464-019-06961-1. Epub 2019 Jul 16.

MeSH Terms

Conditions

Gallbladder Diseases

Condition Hierarchy (Ancestors)

Biliary Tract DiseasesDigestive System Diseases

Study Officials

  • Timothy Rockall, MBBS MD

    MATTU at Royal Surrey County Hospital, Guildford

    STUDY CHAIR
  • Iain Jourdan, MA Mchir

    MATTU at Royal Surrey County Hospital, Guildford

    STUDY DIRECTOR
  • Katie E Schwab, MBBS BSc

    MATTU at Royal Surrey County Hospital, Guildford

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Surgical Registrar & Research Fellow to MATTU

Study Record Dates

First Submitted

August 23, 2013

First Posted

August 28, 2013

Study Start

May 1, 2013

Primary Completion

October 1, 2014

Study Completion

October 1, 2014

Last Updated

December 3, 2015

Record last verified: 2015-12

Locations