Simulated central venous catheterisation with the aid of a motion-tracking device

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This study aims to validate the use of a tracking motion device, the imperial college surgical assessment device (ICSAD), by comparing it with validated global rating scales (GRS) to measure CVC performance in a simulated torso” Varas et al (2016).

Abstract:

BACKGROUND: Central venous catheterization (CVC) is a basic requirement for many medical specialties. Simulated training in CVC may allow the acquisition of this competency but few reports have established a valid methodology for learning and acquiring procedural skills for CVC. This study aims to validate the use of a tracking motion device, the imperial college surgical assessment device (ICSAD), by comparing it with validated global rating scales (GRS) to measure CVC performance in a simulated torso.

METHODS: Senior year medical students, first and last year residents (PGY1, LYR), and expert anesthesiologists performed a jugular CVC assessment in a simulated model (Laerdal IV Torso). A validated GRS for objective assessment of technical skills and motion analysis by ICSAD was used. Statistical analysis was performed through Mann-Whitney and Kruskal-Wallis tests for construct validity and Spearman correlation coefficients between the ICSAD and GRS scores for concurrent validity between both.

RESULTS: 32 subjects were recruited (10 medical students, 8 PGY1, 8 LYR and 8 experts). Total path length measured with ICSAD and GRS scores were significantly different between all groups, except for LYR compared to experts (p = 0.664 for GRS and p = 0.72 for ICSAD). Regarding jugular CVC procedural time, LYR and experts were faster than PGY1 and MS (p < 0.05). Spearman correlation coefficient was -0.684 (p < 0.001) between ICSAD and GRS scores.

CONCLUSIONS: ICSAD is a valid tool for assessment of jugular CVC since it differentiates between expert and novice subjects, and correlates with a validated GRS for jugular CVC in a simulated torso.

Reference:

Varas, J., Achurra, P., León, F., Castillo, R., De La Fuente, N., Aggarwal, R., Clede, L., Bravo, M.P., Corvetto, M. and Montaña, R. (2016) Assessment of central venous catheterization in a simulated model using a motion-tracking device: an experimental validation study. Annals of Surgical Innovation and Research. February 12th. eCollection 2016.

doi: 10.1186/s13022-016-0025-6.

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