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  • Open Access

Responsiveness to EMT-performed basic CPR and its duration predict unachievable sustained return of spontaneous circulation and unavoidable hospital death in unwitnessed out-of-hospital cardiac arrests without bystander CPR

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Critical Care201115 (Suppl 1) :P293

  • Published:


  • Public Health
  • Emergency Medicine
  • Cardiac Arrest
  • Basal Data
  • Hospital Death


Various criteria to terminate resuscitation have been reported. EMTs in Japan are not permitted to terminate resuscitation in the field. The aim of this study is to test the hypothesis that ECG rhythm response to basic CPR and its duration may predict hospital death.


The basal data were prospectively collected from 1,437 unwitnessed out-of-hospital cardiac arrests (OHCAs) that were resuscitated by EMTs without the ACLS technique in Ishikawa Prefecture (Figure 1). The cut-off points of basic CPR duration for outcomes were determined. Sensitivity and specificity were calculated.
Figure 1
Figure 1

Overview of out-of-hospital cardiac arrests analyzed.


The improvement of the ECG rhythm by basic CPR predicted the sustained return of spontaneous circulation (SROSC) in hospital. The duration of EMT-performed CPR predicted the outcomes of the OHCAs that were unresponsive to the basic CPR (Figure 2).
Figure 2
Figure 2

Duration of EMT-performed BLS determines the incidence of SROSC at hospital and 1-year survival in unwitnessed OHCAs without CPR before EMT arrival.


Responsiveness to basic CPR and its duration may predict unavoidable death in hospital.

Authors’ Affiliations

Kanazawa University Graduate School of Medicine, Kanazawa, Japan


  1. N Engl J Med. 2006, 355: 478-487. 10.1056/NEJMoa052620Google Scholar
  2. JAMA. 2008, 300: 1432-1438. 10.1001/jama.300.12.1432Google Scholar
  3. Resuscitation. 2010, 81: 679-684. 10.1016/j.resuscitation.2010.01.033Google Scholar


© Inaba et al. 2011

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.