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Cohort study
Another step towards the acceptance of chest compression only CPR for primary cardiac arrest
  1. Gordon A Ewy
  1. Department of Medicine, University of Arizona College of Medicine, Tucson, Arizona, USA
  1. Correspondence to: Dr Gordon A Ewy
    Department of Medicine, University of Arizona College of Medicine, 1501 North Campbell Avenue, Tucson, Arizona 85724, USA; gaewy{at}

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Implications for practice and research

  • Out-of-hospital cardiac arrest (OHCA) is a major public health problem.

  • For decades, guidelines prescribed mouth-to-mouth (MTM) ventilation as the first step in resuscitation of both primary and secondary cardiac arrest.

  • The report by Iwami and associates is another observational study in patients that found improved survival of patients with primary OHCA who received chest compression only cardiopulmonary resuscitation (CO-CPR) by bystanders.1


Bystander-initiated MTM ventilation alternating with chest compressions was …

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  • Competing interests None.