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Cohort study
Compression-only CPR may improve survival for patients in cardiac arrest due to shockable rhythms treated by bystanders with public access defibrillation
  1. Andrew Whittington1,2,
  2. Gavin D Perkins1,2,3
  1. 1University of Warwick, Warwick Clinical Trials Unit, Gibbett Hill, Coventry, B93 9BE, UK
  2. 2West Midlands Ambulance Service NHS Foundation Trust, Waterfront Way, Brierley Hill, West Midlands DY5 1LX, UK
  3. 3Heart of England NHS Foundation Trust, Bordesley Green East, Birmingham, B9 5SS, UK
  1. Correspondence to: Professor Gavin D Perkins
    University of Warwick, Warwick Clinical Trials Unit, Gibbett Hill, Coventry, B93 9BE, UK; g.d.perkins{at}

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Commentary on: Iwami T, Kitamura T, Kawamura T, et al.; for the Japanese Circulation Society Resuscitation Science Study (JCS-ReSS) Group. Chest compression-only cardiopulmonary resuscitation for out-of-hospital cardiac arrest with public-access defibrillation: a nationwide cohort study. Circulation 2012;126:2844–51.


Less than 1 in 10 victims of out-of-hospital cardiac arrests (OHCA) survive.1 Bystander cardiopulmonary resuscitation (CPR) doubles the chances of survival,2 yet is only undertaken in one-third of cases.3 Chest compression-only CPR (CCCPR) has emerged as an alternative to standard CPR, which includes compressions and ventilations. This method is easier to learn and retain and eliminates the necessity for mouth-to-mouth contact (which may be an impediment to a bystander starting CPR). Furthermore, it reduces potentially harmful interruptions in chest compressions caused during ventilations.

A meta-analysis of three randomised controlled trials found that when emergency medical dispatchers (EMD) provided telephone instructions to …

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  • Competing interests None.