Objective Compared with no music (NM), does listening to ‘Achy breaky heart’ (ABH) or ‘Disco science’ (DS) increase the proportion of prehospital professionals delivering chest compressions at 2010 guideline-compliant rates of 100–120 bpm and 50–60 mm depths?
Methods A randomised crossover trial recruiting at an Australian ambulance conference. Volunteers performed three 1-min sequences of continuous chest compressions on a manikin accompanied by NM, repeated choruses of ABH and DS, prerandomised for order.
Results 37 of 74 participants were men; median age 37 years; 61% were paramedics, 20% students and 19% other health professionals. 54% had taken cardiopulmonary resuscitation training within 1 year. Differences in compression rate (mode, IQR) were significant for NM (105, 99–116) versus ABH (120, 107–120) and DS (104, 103–107) versus ABH (p<0.001) but not NM versus DS (p=0.478). Differences in proportions of participants compressing at 100–120 bpm were significant for DS (61/74, 82%) versus NM (48/74, 65%, p=0.007) and DS versus ABH (47/74, 64%, p=0.007) but not NM versus ABH (p=1). Differences in compression depth were significant for NM (48 mm, 46–59 mm) versus DS (54 mm, 44–58 mm, p=0.042) but not NM versus ABH (54 mm, 43–59 mm, p=0.065) and DS versus ABH (p=0.879). Differences in proportions of subjects compressing at 50–60 mm were not significant (NM 31/74 (42%); ABH 32/74 (43%); DS 29/74 (39%); all p>0.5).
Conclusions Listening to DS significantly increased the proportion of prehospital professionals compressing at 2010 guideline-compliant rates. Regardless of intervention more than half gave compressions that were too shallow. Alternative audible feedback mechanisms may be more effective.
- Cardiopulmonary resuscitation
- emergency ambulance systems
- emergency medical services
- heart arrest
- prehospital care
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A copy of the trial protocol is available from the chief investigator, Professor M Woollard,
Funding Financial support was provided by Charles Sturt University and the Australian College of Ambulance Professionals. Neither organisation played any role in the study design; in the collection, analysis and interpretation of data; in the writing of the manuscript; or in the decision to submit the manuscript for publication.
Competing interests None.
Ethics approval Ethic approval was obtained from the Charles Sturt University School of Biomedical Sciences research ethics committee.
Provenance and peer review Not commissioned; internally peer reviewed.