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Heart rate variability as a marker of recovery from critical illness in children

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  • Lauren E Marsillio
  • Tomas Manghi
  • Michael S Carroll
  • Lauren C Balmert
  • Mark S Wainwright

Abstract

Objectives: The purpose of this study was to Identify whether changes in heart rate variability (HRV) could be detected as critical illness resolves by comparing HRV from the time of pediatric intensive care unit (PICU) admission with HRV immediately prior to discharge. We also sought to demonstrate that HRV derived from electrocardiogram (ECG) data from bedside monitors can be calculated in critically-ill children using a real-time, streaming analytics platform. Methods: This was a retrospective, observational pilot study of 17 children aged 0 to 18 years admitted to the PICU of a free-standing, academic children’s hospital. Three time-domain measures of HRV were calculated in real-time from bedside monitor ECG data and stored for analysis. Measures included: root mean square of successive differences between NN intervals (RMSSD), percent of successive NN interval differences above 50 ms (pNN50), and the standard deviation of NN intervals (SDNN). Results: HRV values calculated from the first and last 24 hours of PICU stay were analyzed. Mixed effects models demonstrated that all three measures of HRV were significantly lower during the first 24 hours compared to the last 24 hours of PICU admission (p

Suggested Citation

  • Lauren E Marsillio & Tomas Manghi & Michael S Carroll & Lauren C Balmert & Mark S Wainwright, 2019. "Heart rate variability as a marker of recovery from critical illness in children," PLOS ONE, Public Library of Science, vol. 14(5), pages 1-12, May.
    • Handle: RePEc:plo:pone00:0215930
    DOI: 10.1371/journal.pone.0215930
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