Acute application of bilevel positive airway pressure influences the cardiac autonomic nervous system.

Clinics
Camila Bianca Falasco PantoniAudrey Borghi-Silva

Abstract

Noninvasive positive pressure has been used to treat several diseases. However, the physiological response of the cardiac autonomic system during bilevel positive airway pressure (Bilevel) remains unclear. The aim of this study was to evaluate the heart rate variability (HRV) during Bilevel in young healthy subjects. Twenty men underwent 10-minute R-R interval recordings during sham ventilation (SV), Bilevel of 8-15 cmH(2)O and Bilevel of 13-20 cmH(2)O. The HRV was analyzed by means of the parallel R-R interval (mean R-Ri), the standard deviation of all R-Ri (SDNN), the root mean square of the squares of the differences between successive R-Ri (rMSSD), the number of successive R-Ri pairs that differ by more than 50 milliseconds (NN50), the percentage of successive R-Ri that differ by more than 50 milliseconds (pNN50), the low frequency (LF), the high frequency (HF) and SD1 and SD2. Additionally, physiological variables, including blood pressure, breathing frequency and end tidal CO(2), were collected. Repeated-measures ANOVA and Pearson correlation were used to assess the differences between the three studied conditions and the relationships between the delta of Bilevel at 13-20 cmH(2)O and sham ventilation of the HRV indexes a...Continue Reading

Citations

Jun 28, 2016·Sensors·Julian W Gardner, Timothy A Vincent
Nov 19, 2010·Brazilian Journal of Medical and Biological Research = Revista Brasileira De Pesquisas Médicas E Biológicas·C B F PantoniA Borghi-Silva
Jun 5, 2021·Heart & Lung : the Journal of Critical Care·Giovana Salgado BaffaAudrey Borghi-Silva

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Methods Mentioned

BETA
RSA

Software Mentioned

Kubios HRV Analysis
Bilevel
MATLAB
GraphPad InStat

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