A randomized study of training with large versus small vessel size on successful ultrasound-guided peripheral venous access
2017
PurposeOur objective was to investigate whether training on phantoms with smaller or larger vessels would improve success rate in novice medical students learning this skill.MethodsMedical students who participated in a voluntary, extracurricular ultrasound training day were asked to participate in the study as part of their procedural training. They were given a standardized education and demonstration of how to use ultrasound to place a peripheral intravenous (IV) catheter. They were then randomized to practice three times on homemade phantom models with either a 5-mm or a 2.5-mm diameter simulated vessel. Afterwards, they were observed attempting to place an ultrasound-guided IV on a 5-mm diameter vessel. Successful cannulation rates was the primary outcome.ResultsFifty-one students from five institutions were included in the analysis. No significant difference in success rate, time to cannulation, number of sticks, or number of redirects was seen between the group who trained on the phantoms with the ...
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