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Two Affordable, High-Fidelity Central Venous Models for Ultrasound-Guided Interventional Training.

Authors :
Mason MM
Richardson KD
Carino Mason MR
Swonger RM
Emami S
Anantha S
Thornton LM
Source :
Simulation in healthcare : journal of the Society for Simulation in Healthcare [Simul Healthc] 2024 Dec 01; Vol. 19 (6), pp. e154-e159. Date of Electronic Publication: 2023 Jul 20.
Publication Year :
2024

Abstract

Introduction: Ultrasound-guided vascular access is an increasingly popular technique due to its reduced complication and higher success rates. Commercially bought training phantoms allow providers to develop tactile skills in a low-risk setting, but are also expensive and poorly accessible. This study analyzes the efficacy of homemade, low-cost, gelatin-based central line vascular models to teach vascular anatomy and intravascular access techniques in training physicians.<br />Methods: A gelatin mold was created using a mixture of unflavored gelatin, hot water, psyllium husk powder, and rubbing alcohol. Latex tubing, balloons, precooked hot dog, and tofu were inserted to simulate arteries, veins, nerves, and the sternocleidomastoid muscle, respectively. Medical students from a single institution participated in a 90-minute workshop led by interventional radiology residents. Participants completed presurveys and postsurveys that assessed knowledge acquisition and confidence levels related to acquiring central access. All images were obtained using a USB-C Butterfly iQ probe.<br />Results: Twenty medical students were analyzed after the workshop. There was a statistically significant increase in self-reported confidence in basic ultrasound use (adjusting gain, depth, probe manipulation), localizing major anatomical structures, using ultrasound for vessel access, and reported ease in identifying muscle, nerves, and major blood vessels under ultrasound. There was also a significant increase in correctly identified anatomical landmarks after the workshop, including the sternocleidomastoid muscle, internal jugular vein, carotid artery, femoral nerve, femoral artery, and femoral vein.<br />Conclusions: Our findings suggest that our homemade, low-cost, gelatin-based models were effective in teaching vascular anatomy and ultrasound-guided vascular access techniques to training physicians.<br />Competing Interests: The authors declare no conflict of interest.<br /> (Copyright © 2023 Society for Simulation in Healthcare.)

Details

Language :
English
ISSN :
1559-713X
Volume :
19
Issue :
6
Database :
MEDLINE
Journal :
Simulation in healthcare : journal of the Society for Simulation in Healthcare
Publication Type :
Academic Journal
Accession number :
37440430
Full Text :
https://doi.org/10.1097/SIH.0000000000000738