[Intraosseous access in infants-development of an anatomical training model]

Area of Science:

• Pediatric emergency medicine
• Medical simulation and training
• Anatomical modeling

Context:

• Intraosseous (i.o.) access is a critical emergency procedure for infants and young children.
• High rates of i.o. access misplacement highlight a need for improved training.
• Current training methods lack sufficient opportunities and realistic simulation.

Purpose:

• To analyze malpunctures in pediatric intraosseous access using postmortem CT imaging.
• To develop and evaluate a cost-effective, 3D-printed training model for infant i.o. punctures.
• To assess the anatomical accuracy and user-perceived suitability of the developed training model.

Summary:

• Retrospective analysis of 25 pediatric postmortem CT scans revealed a 40% malpuncture rate in i.o. access, often due to poor anatomical assessment.
• A three-part, 3D-printed and silicone-molded training model was developed based on malpuncture analysis.
• Fifty-five experienced users rated the model as suitable for beginner training, suggesting improvements in haptic feedback and loss of resistance simulation.

Impact:

• The 3D printed model provides an affordable and anatomically precise training tool for intraosseous punctures in infants.
• This model has the potential to enhance user competence and safety in emergency i.o. access procedures.
• Future iterations can improve haptic feedback and puncture success simulation for more effective training.