The physiological effect on rescuers of doing 2 min of uninterrupted chest compressions

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• 作者：Salvador Quintana Riera ; Baltasar Sá ; nchez Gonzá ; lez ; Josep Trenado Á ; lvarez ; Marí ; a del Mar Ferná ; ndez Ferná ; ndez ; Jaume Mestre Saura
• 关键词：Cardiopulmonary resuscitation (CPR) ; CPR guidelines ; Chest compression ; Rescuer fatigue
• 刊名：Resuscitation
• 出版年：2007
• 出版时间：July 2007
• 年：2007
• 卷：74
• 期：1
• 页码：108-112
• 全文大小：135 K

文摘

Summary

Objectives

To analyse how rescuers tolerate the effort derived of giving uninterrupted chest compressions during 2 min.

Materials and methods

Twenty-three healthy volunteers, nurses and doctors of the Intensive Care Unit (ICU), members of the hospital cardiac arrest team, were enrolled in the study. Using a training manikin, participants were asked to perform chest compressions during 2 min at a rate of 100 min⁻¹. The oxygen saturation and cardiac rate of the subjects were monitored using pulse oximetry before and after one and 2 min performing chest compressions. The percentage of the maximal heart rate of the rescuer over the theoretical maximum allowed in a conventional stress test was calculated, taking into account age and body mass index (BMI) of the subjects. Fatigue was measured using a visual analogical scale (VAS).

Results

The means (±S.D.) of chest compressions in the first and second minutes were 103 ± 12, and 104 ± 11, respectively. The mean percent of the maximum heart rate observed was 61 ± 8 % . None of the subjects had difficulties to complete the test. All subjects recovered their basal values in less than 2 min, and the mean value recorded in the VAS was 3 ± 2.

Conclusions

The practice of uninterrupted chest compressions during 2 min by the same rescuer is well tolerated by health professionals trained in cardiopulmonary resuscitation (CPR).