Mechanical CPR Device Use and Cardiac Arrest Survival in EMS Agencies.

Mechanical CPR device use did not improve survival or neurological outcomes in out-of-hospital cardiac arrest cases across US EMS agencies.

• Why it matters: Improving CPR quality during out-of-hospital cardiac arrests is critical, yet the effectiveness of mechanical devices in routine EMS care remains uncertain, impacting survival strategies.
• What they did: The study analyzed data from nearly 52,000 patients across 73 EMS agencies, comparing survival rates before and after implementing mechanical CPR devices from 2013 to 2019 using observational and interrupted time series methods.
• The result: Findings showed no significant change in survival to discharge or neurological outcomes after device adoption, suggesting that mechanical CPR devices do not enhance patient survival in real-world EMS settings.