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| Research article summary (published 27 Feb 2002): |
Relationship between skill and outcome in the laboratory-based model.
Full Abstract
BACKGROUND:
Recent attention has been directed at developing quantitative assessments of surgical skill. This study aims to demonstrate whether objectively measuring differences in manual dexterity has an impact on a simulated surgical procedure.
METHODS:
Six general surgical trainees performed 5 polytetrafluoroethylene graft to artery anastomoses on a vascular model by using a standardized technique. Manual dexterity was objectively measured with (1) electromagnetic motion analysis:
trackers applied to the backs of hands recorded and analyzed both hand movements and procedural time and (2) 4-parameter evaluation of the final product. Outcome parameters were assessed by (1) rate of anastomotic leakage and (2) smallest cross-sectional area of the anastomosis.
RESULTS:
The 2 objective measures of manual dexterity correlated closely (Pearson coefficient, 0.423; P <.02). Trainees with better manual dexterity scores produced better outcome measures. Those with better motion analysis scores produced anastomoses that leaked less (Pearson coefficient, 0.514; P <.01) and those with higher global evaluation scores had a larger anastomotic cross-sectional area (Pearson coefficient, 0.495; P <.01). Time taken for the procedure did not appear to influence either outcome measure.
CONCLUSIONS:
There is a significant correlation between objective measures of manual dexterity and the outcome measures in this model. This suggests that the outcome of a procedure can be predicted by measuring surgical skill.
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Author information
Author/s: Datta, Vivek (V); Mandalia, Mirren (M); Mackay, Sean (S); Chang, Avril (A); Cheshire, Nicholas (N); Darzi, Ara (A);
Affiliation: Department of Surgical Oncology and Technology, Imperial College School of Medicine at St Mary's, and the Regional Vascular Unit, St Mary's Hospital, London, UK.
Journal and publication information
Publication Type: Journal Article
Journal: Surgery (Surgery), published in United States. (Language: eng)
Reference: 2002-Mar; vol 131 (issue 3) : pp 318-23
Dates: Created 2002/03/14; Completed 2002/04/18; Revised 2004/11/17;
PMID: 11894037, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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