Journal article
Finger volume pulse waveforms facilitate reliable assessment of heart rate variability, but not blood pressure variability or baroreflex function
BMC cardiovascular disorders, Vol.14(1), pp.180-180
2014
DOI: 10.1186/1471-2261-14-180
PMCID: PMC4269858
PMID: 25487432
Abstract
Background: We sought to determine whether heart rate variability (HRV), blood pressure (BP) variability, and baroreceptor-heart rate reflex sensitivity can be reliably assessed using finger volume pulse waveforms obtained from the commercially available EndoPAT device.
Methods: Non-invasive BP (Finometer Pro as a non-invasive standard) and finger volume (EndoPAT) waveforms were recorded in 65 adults (37 ± 14 years; 60% female) and systolic BP and heart rate (HR) time series were derived after calibrating the EndoPAT signal based on systolic and diastolic BP values obtained by a sphygomomanometer. Transfer function analyses were performed to test for coherence between systolic BP and HR time series derived from the Finometer and EndoPAT devices. Time-domain HRV parameters, frequency domain HR and systolic BP variability parameters, and baroreflex sensitivity (sequence technique) were computed from Finometer- and EndoPAT-derived time series and intraclass correlation coefficients (ICC) were calculated.
Results: Squared coherence between systolic BP time series derived from the Finometer and EndoPAT devices was low, suggesting poor correlation. In contrast, squared coherence between HR time series derived from the two devices was excellent [High Frequency (HF) = 0.80, Low Frequency (LF) = 0.81], with gain values close to 1.0. ICC values for time- and frequency-domain HRV parameters were excellent (>0.9 except for relative HF HRV, which was 0.77), while ICC values for frequency-domain BP variability parameters and baroreceptor-HR reflex sensitivity were low.
Conclusions: Finger volume pulse waveforms can be used to reliably assess both time-domain and frequency-domain HR variability. However, frequency domain BP variability parameters cannot be reliably assessed from finger volume pulse waveforms using the simple calibration technique used in this study.
Details
- Title: Subtitle
- Finger volume pulse waveforms facilitate reliable assessment of heart rate variability, but not blood pressure variability or baroreflex function
- Creators
- Jonathan R Linder - Department of Psychiatry, Roy J. and Lucille A. Carver College of Medicine, The University of Iowa, Iowa City, IA 52242 USAHarald M Stauss - Department of Health and Human Physiology, College of Liberal Arts & Sciences, The University of Iowa, Iowa City, IA 52242 USAHolly Gindes - Department of Psychiatry, Roy J. and Lucille A. Carver College of Medicine, The University of Iowa, Iowa City, IA 52242 USAGary L Pierce - Department of Health and Human Physiology, College of Liberal Arts & Sciences, The University of Iowa, Iowa City, IA 52242 USANicholas H Von Bergen - Department of Pediatrics, The University of Iowa, Iowa City, IA 52242 USAWilliam G Haynes - Department of Internal Medicine, The University of Iowa, Iowa City, IA 52242 USAJess G Fiedorowicz - Department of Internal Medicine, The University of Iowa, Iowa City, IA 52242 USA
- Resource Type
- Journal article
- Publication Details
- BMC cardiovascular disorders, Vol.14(1), pp.180-180
- DOI
- 10.1186/1471-2261-14-180
- PMID
- 25487432
- PMCID
- PMC4269858
- NLM abbreviation
- BMC Cardiovasc Disord
- ISSN
- 1471-2261
- eISSN
- 1471-2261
- Publisher
- BioMed Central; London
- Language
- English
- Date published
- 2014
- Academic Unit
- Psychiatry; Epidemiology; Iowa Neuroscience Institute; Pharmacy Practice and Science; Health, Sport, and Human Physiology ; Internal Medicine
- Record Identifier
- 9984070519002771
Metrics
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