Evaluation of noninvasive blood pressure recording by photoplethysmography in clinical studies using angiotensin challenges

Buclin,; Csajka, Chantal; Brunner,; Biollaz,

doi:10.1046/j.1365-2125.1999.00049.x

Cited by 11 publications

(7 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the results with stratification according to the different methods appear to be consistent with the previous observations, reported by this laboratory [30] or others [1,7,8,10,14,20,28], which suggest a comparability between the ABP measured using Finapres and intra-arterial catheters (see table 3). Nonetheless, there was a trend (p = 0.071) that DBP could be differently diagnosed using Finapres or intra-arterial catheters between the different age groups.…”

Section: Discussionsupporting

confidence: 81%

Aging and Arterial Blood Pressure Variability during Orthostatic Challenge

et al. 2003

View full text Add to dashboard Cite

Background: It has been demonstrated that a decrease in vagal cardiac function compromises arterial blood pressure (ABP) stability during orthostatic challenge. Augmentations in low-frequency (LF) ABP oscillations are indicative of this change in autonomic hemodynamic control. Aging is associated with diminished arterial baroreflex sensitivity and vagal cardiac dysfunction. However, the effect of aging on the stability of ABP during an orthostatic challenge remains to be elucidated. Objective: The purpose of this study was to investigate ABP stability with aging during central hypovolemia induced by lower-body negative pressure (LBNP). Methods: Graded LBNP up to –40 mm Hg was applied in 16 older (65 ± 3 years of age) and 16 younger (25 ± 3 years of age) healthy adults. ABP variability was analyzed by fast Fourier transform. LF spectral density (0.04–0.15 Hz) was extracted to provide an index of vasomotor responsiveness. Results: Both LF systolic blood pressure (SBP) variability and diastolic blood pressure variability were augmented with LBNP. The rate of increase in LF SBP variability was augmented significantly greater in older as compared with younger subjects (p = 0.049). In addition, LF SBP variability was inversely correlated with decreases in pulse pressure in both age groups (r = –0.84, p = 0.01). The magnitude of the decreases in SBP and pulse pressure during LBNP was significantly affected by age, with the largest changes occurring in older subjects. The altered ABP response that manifested in older individuals was associated with a significant diminution in the reflex tachycardiac response elicited by LBNP. Conclusions: Induction of central hypovolemia via graded LBNP augments LF ABP variability. This increased ABP variability is significantly greater in older individuals. Our data suggest that aging is associated with ABP instability during orthostatic challenge.

show abstract

Section: Discussionsupporting

confidence: 81%

Aging and Arterial Blood Pressure Variability during Orthostatic Challenge

et al. 2003

View full text Add to dashboard Cite

show abstract

“…First, the peripheral compliance index, which decreases with chronological age ( 145 ), can be estimated from pulse pressure and PPG pulse wave amplitude ( 119 , 145 , 171 ). Second, the volume-clamp method can be used to measure BP continuously ( 156 , 208 ). This approach is used by several commercially available devices ( 213 ).…”

Section: Resultsmentioning

confidence: 99%

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

View full text Add to dashboard Cite

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.

show abstract

“…However, the reliability and reproducibility of PPG measurement appear to be more satisfactory [58].…”

Section: Ppg and The Assessment Of Drug Actionmentioning

confidence: 98%

Optical Techniques in the Assessment of Peripheral Arterial Disease

Alnaeb¹,

Alobaid²,

Seifalian³

et al. 2007

CVP

View full text Add to dashboard Cite

A variety of optical techniques have been developed over the years for experimental use in vascular disease, mainly for the assessment of lower limb peripheral arterial disease (PAD). Optical techniques have several advantages over more traditional experimental approaches. Photoplethysmograph (PPG) was one of the earliest methods used for this purpose; PPG satisfies many of the conditions for a non-invasive technique to estimate skin blood flow using infrared light, not only for research but also in clinical practice. PPG is a promising, safe and easy-to-use tool for diagnosis and early screening of various atherosclerotic pathologies and could be useful for regular GP-assessment or even self-monitoring of PAD at home or during individual physical exercises. This review discusses the application of PPG in the assessment of PAD.

show abstract

Evaluation of noninvasive blood pressure recording by photoplethysmography in clinical studies using angiotensin challenges

Cited by 11 publications

References 29 publications

Aging and Arterial Blood Pressure Variability during Orthostatic Challenge

Aging and Arterial Blood Pressure Variability during Orthostatic Challenge

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

Optical Techniques in the Assessment of Peripheral Arterial Disease

Contact Info

Product

Resources

About