Journal article
Reliability of oscillometric central hemodynamic responses to an orthostatic challenge
Atherosclerosis, Vol.241(2), pp.761-765
2015
Abstract
Background: Monitoring central hemodynamic responses to an orthostatic challenge may provide important insight into autonomic nervous system function. Oscillometric pulse wave analysis devices have recently emerged, presenting clinically viable options for investigating central hemodynamic properties. The purpose of the current study was to determine whether oscillometric pulse wave analysis can be used to reliably (between-day) assess central blood pressure and central pressure augmentation (augmentation index) responses to a 5 min orthostatic challenge (modified tilt-table). Methods: Twenty healthy adults (26.4 y (SD 5.2), 55% F, 24.7 kg/m2 (SD 3.8)) were tested on 3 different mornings in the fasted state, separated by a maximum of 7 days. Central hemodynamic variables were assessed on the left arm using an oscillometric device. Results: Repeated measures analysis of variance indicated a significant main effect of the modified tilt-table for all central hemodynamic variables (P < 0.001). In response to the tilt, central diastolic pressure increased by 4.5 mmHg (CI: 2.6, 6.4), central systolic blood pressure increased by 2.3 (CI: 4.4, 0.16) mmHg, and augmentation index decreased by an absolute - 5.3%, (CI: -2.7, -7.9%). The intra-class correlation coefficient values for central diastolic pressure (0.83-0.86), central systolic blood pressure (0.80-0.87) and AIx (0.79-0.82) were above the 0.75 criterion in both the supine and tilted positions, indicating excellent between-day reliability. Conclusion: Central hemodynamic responses to an orthostatic challenge can be assessed with acceptable between-day reliability using oscillometric pulse wave analysis. © 2015 Elsevier Ireland Ltd.
Details
- Title
- Reliability of oscillometric central hemodynamic responses to an orthostatic challenge
- Authors
- L Stoner (Author) - Massey University, New ZealandC Bonner (Author) - Harvard School of Public Health, United StatesD Credeur (Author) - University of Southern Mississippi, United StatesD Lambrick (Author) - University of Southampton, United KingdomJ Faulkner (Author) - University of Winchester, United KingdomDaniel P Wadsworth (Author) - Massey University, New ZealandM A Williams (Author) - Harvard School of Public Health, United States
- Publication details
- Atherosclerosis, Vol.241(2), pp.761-765
- Publisher
- Elsevier Ireland Ltd.
- Date published
- 2015
- DOI
- 10.1016/j.atherosclerosis.2015.06.041
- ISSN
- 0021-9150
- Copyright note
- Copyright © 2015. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
- Organisation Unit
- School of Health - Nursing; University of the Sunshine Coast, Queensland; School of Nursing, Midwifery and Paramedicine - Legacy
- Language
- English
- Record Identifier
- 99451103102621
- Output Type
- Journal article
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