Performance of different support surfaces during experimental resuscitation (CPR)

Area of Science:

• Medical Devices
• Emergency Medicine
• Biomedical Engineering

Background:

• Previous studies explored resuscitation efficacy with backboards and mattresses in acute care.
• Limited research exists on how different mattress functional modes impact resuscitation effectiveness.
• Support surfaces significantly influence patient outcomes during critical care interventions.

Purpose of the Study:

• To investigate the performance of various support surfaces during experimental cardiopulmonary resuscitation (CPR).
• To compare the efficacy of resuscitation across different mattress types: hard surface, foam, alternating pressure, and minimum pressure air systems.
• To analyze the impact of mattress-specific CPR functions on resuscitation quality.

Main Methods:

• Experimental setup using a pressure-sensitive mat to measure resuscitation efficacy.
• Evaluation of compression frequency, depth, and hands-on time across different surfaces.
• Testing included a hard surface, foam mattress, alternating pressure mattress, and a reactive minimum pressure air mattress system.

Main Results:

• Resuscitation efficacy is significantly influenced by the mattress's mode of action, not solely compression parameters.
• Deflating alternating pressure mattresses (open system) improved stability, particularly when mattress height exceeded 20-25 cm.
• Closed air system mattresses offered optimal stability and effort, but activating the CPR function impaired functionality.

Conclusions:

• The mode of action of the mattress and the use of its CPR function critically affect resuscitation outcomes.
• Complex interactions between the patient and mattress (immersion, envelopment) are key determinants of efficacy.
• The necessity and benefit of the CPR function in air mattresses warrant further investigation due to potentially impaired functionality.