Box-ED Section:

What is known about the topic?

Cardio-pulmonary resuscitation (CPR) feedback devices provide information on chest compression rate, depth, and recoil. Their use by medical professionals is limited.

What did this study ask?

This study aims to evaluate the use of a CPR feedback application (App) downloaded on a mobile phone by lay rescuers.

What did this study find?

The mean chest compression rate and percentage of compressions with adequate rate improved, and this was persistent up to 3 months with the use of smartphone Apps.

Why does this study matter to clinicians?

The smartphone Apps may reduce no-flow time and increase CPR quality in patients with cardiac arrest.