Impact of different corrective filters on heart rate variability in chronic obstructive pulmonary disease: conclusions and recommendations for future research
摘要
The existence of noise, trends, ectopic beats, and artifacts can directly affect HRV quality, warranting signal correction.
ObjectiveOur objective was to analyze the impact of different filters in the Kubios software on short-term HRV analysis in a COPD.
MethodologyA cross-sectional study involving 81 COPD patients was allocated into four groups according to clinical status and severity: (1) non-exacerbated COPD GOLD I-II, (2) non-exacerbated COPD GOLD III-IV, (3) exacerbated COPD GOLD I-II, and (4) exacerbated COPD GOLD I-II. The R-R interval signal was registered in the supine position over 10 min using a Polar S810i telemetry system; Kubios software was used for short-term HRV analysis using the six filters available.
ResultsThere were significant differences (p < 0.05) in HRV-derived parameters in the time domain across the Kubios filters, especially in the strong and very strong filters. In the frequency domain and non-linear analysis, only the very strong filter was significant when compared to the other filters in some variables (p < 0.05).
ConclusionThe application of different Kubios filters had a significant impact on the quantification of HRV-derived parameters obtained from short-term recordings in linear and non-linear analyses.