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A Vibrotactile Feedback Device for Seated Balance Assessment and Training
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Dynamic Visual Feedback During Junctional Tourniquet Training.

James Xu1, Calvin Kwan1, Adhira Sunkara2

  • 1University of Wisconsin-Madison, School of Medicine and Public Health, Department of Surgery, 600 Highland Avenue, K6/120 CSC, Madison, Wisconsin 53792-1690.

The Journal of Surgical Research
|December 4, 2018
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Summary
This summary is machine-generated.

A new visual bleeding feedback (VBF) system for tourniquet training was well-received by medical students and EMS members. While confidence levels remained unchanged, the VBF system significantly reduced tourniquet application times.

Keywords:
Hemorrhage controlSimulation educationTourniquet placementVisual feedback

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Area of Science:

  • Medical Education
  • Emergency Medicine
  • Surgical Simulation

Background:

  • Development of a novel visual bleeding feedback (VBF) system for tourniquet training.
  • Hypothesis that dynamic VBF would enhance junctional tourniquet training effectiveness and trainee reception.

Purpose of the Study:

  • To evaluate the usefulness and impact of a new VBF system on tourniquet training.
  • To assess trainee confidence and application times with and without VBF.

Main Methods:

  • A single-blind, crossover study involving 15 medical students and 4 EMS members.
  • Randomization to VBF or no-feedback groups, followed by post-study surveys and Likert scale assessments.
  • Statistical comparison using Wilcoxon signed-rank and rank-sum tests.

Main Results:

  • Participants rated VBF highly for helpfulness (6.53/7.00) and recommendability (6.80/7.00).
  • No statistically significant difference in pre- and post-VBF confidence levels.
  • Tourniquet application times were significantly reduced with VBF (P=0.001).

Conclusions:

  • The VBF prototype is well-liked and considered useful by new tourniquet learners.
  • While confidence did not change, application times improved, indicating enhanced skill acquisition.
  • Further VBF development incorporating quantitative measures will elucidate its full benefits for mastery of junctional tourniquet skills.