The left upper lobe challenge in video-assisted thoracoscopic surgery—use of a composite score to improve the assessment of simulated lobectomy. (16th September 2022)

• Record Type: Journal Article
• Authors: Haidari, Tamim Ahmad; Bjerrum, Flemming; Grimstrup, Søren; Christensen, Thomas Decker; Vad, Henrik; Møller, Lars Borgbjerg; Hansen, Henrik Jessen; Konge, Lars; Petersen, René Horsleben
• Is Part Of: European journal of cardio-thoracic surgery. Volume 62:Number 6(2022)
• Publication Date: 2022-09-16
• Subjects: Video-assisted thoracoscopic surgery lobectomy -- Virtual reality simulation -- Composite score -- Assessment -- Simulation training -- Competency in video-assisted thoracoscopic surgery; Heart -- Surgery -- Periodicals; Chest -- Surgery -- Periodicals; 617.54
• DOI: 10.1093/ejcts/ezac465
• Languages: English
• ISSNs: 1010-7940

Abstract

Abstract: Aim: The aim of this study is to develop a reliable composite score based on simulator metrics to assess competency in virtual reality video-assisted thoracoscopic surgery lobectomy and explore the benefits of combining it with expert rater assessments. METHODS: Standardized objective assessments (time, bleeding, economy of movement) and subjective expert rater assessments from 2 previous studies were combined. A linear mixed model including experience level, lobe and the number of previous simulated procedures was applied for the repeated measurements. Reliability for each of the 4 assessments was calculated using Cronbach's alpha. The Nelder–Mead numerical optimization algorithm was used for optimal weighting of scores. A pass–fail standard for the composite score was determined using the contrasting groups' method. RESULTS: In total, 123 virtual reality video-assisted thoracoscopic surgery lobectomies were included. Across the 4 different assessments, there were significant effects ( P < 0.01) of experience, lobe, and simulator experience, but not for simulator attempts on bleeding ( P = 0.98). The left upper lobe was significantly more difficult compared to other lobes ( P = 0.02). A maximum reliability of 0.92 could be achieved by combining the standardized simulator metrics with standardized expert rater scores. The pass/fail level for the composite score when including 1 expert rater was 0.33. CONCLUSIONS: Combining simulator metrics with 1 or 2 raters increases reliability and can serve as a more objective method for assessing surgical trainees. The composite score may be used to implement a standardized and feasible simulation-based mastery training program in video-assisted thoracoscopic surgery lobectomy. Abstract : Video-assisted thoracoscopic surgery (VATS) lobectomy is the standard approach to surgical treatment of low-stage lung cancer in many centres around the world [1].