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Mechanical vibration in ambulance transport
H B Sherwood1, A Donze, J Giebe
1St. Louis Children's Hospital Neonatal/Pediatric Transport Team, MO.
Summary
Ambulance transport causes significant mechanical vibration for neonates. Simple modifications to the isolette and mattress can effectively reduce this vibration, improving infant safety during transit.
Area of Science:
- Neonatal transport safety
- Biomedical engineering
- Pediatric emergency medicine
Background:
- Ambulance transport exposes neonates to significant mechanical vibration.
- Vibration can negatively impact infant health and development during critical care transport.
Purpose of the Study:
- To quantify vibration levels experienced by neonates during ambulance transport.
- To evaluate the effectiveness of modifications in reducing neonatal exposure to vibration.
Main Methods:
- An infant mannequin in an isolette was used to measure vibration levels during controlled ambulance transports.
- Vibration measurements were taken at various locations within the ambulance and isolette.
- Nonstandard mattresses and isolette modifications were investigated for their vibration-dampening potential.
Main Results:
- Significant differences in vibration levels were observed across different locations within the ambulance (p < .002).
- A gel-filled mattress significantly reduced the transfer of mechanical vibration to the infant mannequin.
- Modifications to the isolette tray also demonstrated a reduction in vibration.
Conclusions:
- Inexpensive modifications to isolette trays and mattresses can substantially decrease vibration exposure for neonates.
- These findings offer practical strategies for enhancing the safety of neonatal intensive care unit (NICU) transport.