Abstract
Background
Laparoscopic surgery is widely used, and results in accelerated patient recovery time and hospital stay were compared with laparotomy. However, laparoscopic surgery is more challenging compared with open surgery, in part because surgeons must operate in a three-dimensional (3D) space through a two-dimensional (2D) projection on a monitor, which results in loss of depth perception. To counter this problem, 3D imaging for laparoscopy was developed. A systematic review of the literature was performed to assess the effect of 3D laparoscopy.
Methods
A systematic search of the literature was conducted to identify randomized controlled trials that compared 3D with 2D laparoscopy. The search was accomplished in accordance with the PRISMA guidelines using the PubMed, EMBASE, and The Cochrane Library electronic databases. No language or year of publication restrictions was applied. Data extracted were cohort size and characteristics, skill trained or operation performed, instrument used, outcome measures, and conclusions. Two independent authors performed the search and data extraction.
Results
Three hundred and forty articles were screened for eligibility, and 31 RCTs were included in the review. Three trials were carried out in a clinical setting, and 28 trials used a simulated setting. Time was used as an outcome measure in all of the trials, and number of errors was used in 19 out of 31 trials. Twenty-two out of 31 trials (71 %) showed a reduction in performance time, and 12 out of 19 (63 %) showed a significant reduction in error when using 3D compared to 2D.
Conclusions
Overall, 3D laparoscopy appears to improve speed and reduce the number of performance errors when compared to 2D laparoscopy. Most studies to date assessed 3D laparoscopy in simulated settings, and the impact of 3D laparoscopy on clinical outcomes has yet to be examined.
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Acknowledgments
We thank Henrik Hornemann, instruction and reference librarian, the Royal Library/KUBIS, Denmark, for his assistance with developing the search string.
Disclosures
Stine Maya Dreier Sørensen, Mona Meral Savran, Lars Konge, and Flemming Bjerrum have no conflict of interest or financial ties to disclose.
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Appendix 1: Full search strategy
Appendix 1: Full search strategy
PubMed (223 articles)
Search ((((((((((((3d OR “three dimensional”) AND laparoscop* AND (training OR education OR “task performance”) NOT medline [45] )) OR (((((3d) OR ((“Depth Perception”[Mesh]) OR “Image Processing, Computer-Assisted”[Mesh] OR “Diagnostic Imaging”[Mesh:NoExp] OR “Video Recording”[Mesh:NoExp] OR “Imaging, Three-Dimensional”[Majr:noexp]))) AND (((“Endoscopy”[Majr] AND laparoscopy)) OR “Laparoscopy”[Majr] OR Laparoscopes)) AND (((((“Education”[Mesh] OR “Inservice Training”[Mesh] OR “Evaluation Studies as Topic”[Mesh:NoExp] OR “Staff Development”[Mesh]) OR “Learning”[Mesh]) OR “Surgical Procedures, Operative/education”[Mesh])) OR “Task Performance and Analysis”[Mesh] OR “Clinical Competence”[Mesh])))))))))))
EMBASE (90 articles)
3D.mp./or exp depth perception/or image processing/or exp *three dimensional imaging/AND exp *laparoscopy/or Laparoscopy.mp./AND exp medical education/or exp clinical competence/or exp in service training/or exp training/or exp staff training/or exp surgical training/or exp task performance
Cochrane Library (28 articles)
(“3D” or “depth perception” or “three dimensional imaging”) and (“laparoscop*”)
In Title, Abstract, Keywords in Cochrane Reviews’
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Sørensen, S.M.D., Savran, M.M., Konge, L. et al. Three-dimensional versus two-dimensional vision in laparoscopy: a systematic review. Surg Endosc 30, 11–23 (2016). https://doi.org/10.1007/s00464-015-4189-7
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DOI: https://doi.org/10.1007/s00464-015-4189-7