Death before disco: the effectiveness of a musical metronome in layperson cardiopulmonary resuscitation training.

Background: A novel musical memory aid has been proposed for aiding laypersons in complying with the American Heart Association (AHA) cardiopulmonary resuscitation (CPR) guidelines of 100 compressions per minute (cpm).

Objective: This study tested usefulness of such a memory aid to improve layperson long-term compliance with CPR compression rate guidelines.

Methods: A prospective randomized controlled trial was conducted using CPR-untrained laypersons.