Hemorheolocical and photoplethysmographical modifications with aging

Ponzetto, M.; Neirotti, M; Romin, R.; Marabotto, M.; Massaia, Massimiliano; Scarafiotti, C.; Molaschi, M

doi:10.1016/0167-4943(96)86937-8

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“…[29][30][31][32] However, the influence of age on hemorheological characteristics in healthy humans remains controversial. 33 Some studies 34,35 have shown an increase in blood viscosity with age, while others [36][37][38] have not. In our study, an increase in blood viscosity with age could not explain the increase in PVR in old dogs, compared with that in young dogs, and arteriolar narrowing was considered as the main factor responsible for this increase with age.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the influence of age on pulmonary arterial pressure by use of right ventricular catheterization, pulsed-wave Doppler echocardiography, and pulsed-wave tissue Doppler imaging in healthy Beagles

Mercier¹,

Maisonneuve²,

Sandersen³

et al. 2010

ajvr

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Section: Discussionmentioning

confidence: 99%

Evaluation of the influence of age on pulmonary arterial pressure by use of right ventricular catheterization, pulsed-wave Doppler echocardiography, and pulsed-wave tissue Doppler imaging in healthy Beagles

Mercier¹,

Maisonneuve²,

Sandersen³

et al. 2010

ajvr

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Assessing hemodynamics from the photoplethysmogram to gain insights into vascular age: a review from VascAgeNet

Charlton

Paliakaitė‬‬‬

Pilt

et al. 2022

American Journal of Physiology-Heart and Circulatory Physiology

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The photoplethysmogram (PPG) signal is widely measured by clinical and consumer devices, and it is emerging as a potential tool for assessing vascular age. The shape and timing of the PPG pulse wave are both influenced by normal vascular ageing, changes in arterial stiffness and blood pressure, and atherosclerosis. This review summarises research into assessing vascular age from the PPG. Three categories of approaches are described: (i) those which use a single PPG signal (based on pulse wave analysis); (ii) those which use multiple PPG signals (such as pulse transit time measurement); and (iii) those which use PPG and other signals (such as pulse arrival time measurement). Evidence is then presented on the performance, repeatability and reproducibility, and clinical utility of PPG-derived parameters of vascular age. Finally, the review outlines key directions for future research to realise the full potential of photoplethysmography for assessing vascular age.

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Hemorheolocical and photoplethysmographical modifications with aging

Cited by 2 publications

References 16 publications

Evaluation of the influence of age on pulmonary arterial pressure by use of right ventricular catheterization, pulsed-wave Doppler echocardiography, and pulsed-wave tissue Doppler imaging in healthy Beagles

Evaluation of the influence of age on pulmonary arterial pressure by use of right ventricular catheterization, pulsed-wave Doppler echocardiography, and pulsed-wave tissue Doppler imaging in healthy Beagles

Assessing hemodynamics from the photoplethysmogram to gain insights into vascular age: a review from VascAgeNet

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