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ULTRASIM: Ultrasound in trauma simulation

  • Devon McLean (a1), Leanne Hewitson (a2), Paul Atkinson (a1) (a3) (a4), David Lewis (a1) (a3), Jacqueline Fraser (a3), Glenn Verheul (a5), Jayanand Mekwan (a1) (a3) and Bryn Robinson (a6)...

Abstract

Objective

This study sought to assess the effectiveness of ultrasound simulation as a component of high-fidelity trauma simulation, in training diagnostic capabilities of resident and attending physicians participating in simulated trauma scenarios.

Methods

Twelve residents and 20 attending physicians participated in 114 trauma simulations. Participants generated a ranked differential diagnosis list after a physical exam and subsequently after a simulated extended focused assessment with sonography for trauma (E-FAST) ultrasound scan. We compared reports to determine whether the addition of ultrasound improved diagnostic performance.

Results

The primary diagnosis accuracy improved significantly with the addition of simulated ultrasound (p<0.0001). Median diagnostic ranking scores also improved (p<0.0001). Further, participants reported a higher confidence in their diagnoses (p<0.0001) and narrowed their differential diagnosis list (p<0.0001).

Conclusion

We demonstrated that a low-cost ultrasound simulator can be successfully integrated into trauma simulations, resulting in an associated improvement in measures of diagnostic accuracy, confidence, and precision for participating resident and attending physicians.

Objectif

L’essai visait à évaluer l’efficacité des simulations d’échographie comme moyen de représentation réaliste de traumas, dans l’amélioration de la compétence diagnostique de résidents et de médecins traitants qui avaient participé à des études de cas factices de trauma.

Méthode

Au total, 12 résidents et 20 médecins traitants ont participé à 114 simulations de trauma. Les sujets ont dressé une liste ordonnée de diagnostics différentiels après un examen physique et une autre après une échographie simulée E-FAST. Il y a ensuite eu comparaison des rapports afin de déterminer si l’ajout de l’échographie avait permis d’améliorer la performance relative à l’exactitude diagnostique.

Résultats

L’exactitude diagnostique initiale s’est améliorée de manière significative avec l’ajout des simulations d’échographie (p<0,0001). Il y a également eu une amélioration des résultats médians relatifs au classement des diagnostics (p<0,0001). En outre, les participants ont fait état d’un plus grand degré de confiance personnelle dans l’exactitude diagnostique (p<0,0001) et ont raccourci leur liste de diagnostics différentiels (p<0,0001).

Conclusions

Les résultats de l’étude démontrent que l’utilisation d’un simulateur d’échographie à bas coût peut donner de bons résultats dans l’étude de cas factices de trauma; en effet, une amélioration des mesures de l’exactitude et de la précision diagnostiques ainsi que de la confiance personnelle a été observée chez les résidents et les médecins traitants qui avaient participé à des séances de formation.

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Copyright

Corresponding author

Correspondence to: Devon McLean, 215 Twin Oaks Drive, Moncton, NB E1G 4W4; Email: devonmclean@live.ca

References

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9.Damjonovic, D, Goebel, U, Fischer, B, et al. An easy-to-build, low-budget point-of-care ultrasound simulator: from Linux to a web-based solution. Crit Ultrasound J 2017;9:4. 10.1186/s13089-017-0061-4.10.1186/s13089-017-0061-4

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ULTRASIM: Ultrasound in trauma simulation

  • Devon McLean (a1), Leanne Hewitson (a2), Paul Atkinson (a1) (a3) (a4), David Lewis (a1) (a3), Jacqueline Fraser (a3), Glenn Verheul (a5), Jayanand Mekwan (a1) (a3) and Bryn Robinson (a6)...

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