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Background <p>This study aimed to evaluate whether increases in heart rate—used as an objective surrogate marker of rescuer fatigue—could influence CPR performance during infant chest compressions.</p> Methods <p>This study was a manikin-based simulation study that enrolled PALS-certified pediatric emergency nurses matched by clinical experience and randomly assigned to three groups. All participants performed three 2-min cycles of infant chest compressions on a manikin (Little Baby QCPR). Each group completed a 90-s exercise protocol at different time points to induce varying degrees of heart-rate elevation. The primary outcome was the difference in CPR quality across groups according to heart-rate variation (percentage increase from baseline).</p> Results <p>Twenty-seven nurses were enrolled and evenly allocated to Groups A, B, and C (<i>n</i> = 9 each). Heart rate increased immediately after exercise in all groups and gradually declined during subsequent compression cycles, with no significant between-group differences at any time point (baseline 85–100&#xa0;bpm/cycle, peak 130–150&#xa0;bpm/cycle). Across all cycles, CPR performance metrics—including total compression count, hand-placement accuracy, mean compression velocity, compression depth, and chest recoil—showed no significant within-group changes for any group. Similarly, no significant between-group differences were observed for any CPR parameter during any cycle. In post-hoc analyses, stratification by the median percentage increase in heart rate (&gt; 67.7% vs. &lt; 67.7%) revealed no statistically significant differences in CPR quality between groups.</p> Conclusion <p>Within this short, three-cycle simulation, exercise-induced heart-rate elevation was not associated with measurable deterioration in infant CPR quality.</p>

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Effect of rescuer heart rate changes on the quality of infant CPR: a simulation-based study

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年12月30日

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  • Da Hyun Kim,
  • Seung Jun Choi

摘要

Background

This study aimed to evaluate whether increases in heart rate—used as an objective surrogate marker of rescuer fatigue—could influence CPR performance during infant chest compressions.

Methods

This study was a manikin-based simulation study that enrolled PALS-certified pediatric emergency nurses matched by clinical experience and randomly assigned to three groups. All participants performed three 2-min cycles of infant chest compressions on a manikin (Little Baby QCPR). Each group completed a 90-s exercise protocol at different time points to induce varying degrees of heart-rate elevation. The primary outcome was the difference in CPR quality across groups according to heart-rate variation (percentage increase from baseline).

Results

Twenty-seven nurses were enrolled and evenly allocated to Groups A, B, and C (n = 9 each). Heart rate increased immediately after exercise in all groups and gradually declined during subsequent compression cycles, with no significant between-group differences at any time point (baseline 85–100 bpm/cycle, peak 130–150 bpm/cycle). Across all cycles, CPR performance metrics—including total compression count, hand-placement accuracy, mean compression velocity, compression depth, and chest recoil—showed no significant within-group changes for any group. Similarly, no significant between-group differences were observed for any CPR parameter during any cycle. In post-hoc analyses, stratification by the median percentage increase in heart rate (> 67.7% vs. < 67.7%) revealed no statistically significant differences in CPR quality between groups.

Conclusion

Within this short, three-cycle simulation, exercise-induced heart-rate elevation was not associated with measurable deterioration in infant CPR quality.