Age-related Differences in the Morphology of the Impedance Cardiography Signal.
Bioimpedance
age
impedance cardiography
signal analysis
Journal
Journal of electrical bioimpedance
ISSN: 1891-5469
Titre abrégé: J Electr Bioimpedance
Pays: Poland
ID NLM: 101769140
Informations de publication
Date de publication:
Jan 2019
Jan 2019
Historique:
received:
01
12
2019
entrez:
15
2
2021
pubmed:
31
12
2019
medline:
31
12
2019
Statut:
epublish
Résumé
Impedance cardiography (ICG) is a non-invasive method of hemodynamic measurement, mostly known for estimation of stroke volume and cardiac output based on characteristic features of the signal. Compared with electrocardiography, the knowledge on the morphology of the ICG signal is scarce, especially with respect to age-dependent changes in ICG waveforms. Based on recordings from ten younger (20-29 years) and ten older (60-79) healthy human subjects after three different levels of physical activity, the typical interbeat ICG waveforms were derived based on ensemble averages. Comparison of these waveforms between the age groups indicates the following differences: a later initial upward deflection for the younger group, an additional hump in the waveform from many older subjects not presented in the younger group, and a more pronounced second wave in the younger group. The explanation for these differences is not clear, but may be related to arterial stiffness. Further studies are suggested to determine whether these morphological differences have clinical value.
Identifiants
pubmed: 33584895
doi: 10.2478/joeb-2019-0020
pii: joeb-2019-0020
pmc: PMC7851975
doi:
Types de publication
Journal Article
Langues
eng
Pagination
139-145Informations de copyright
© 2019 Christian Tronstad et al., published by Sciendo.
Déclaration de conflit d'intérêts
Conflict of interest Authors state no conflict of interest.
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