scholarly journals Arterial compliance decreases during the isometric exercise grip test in normal subjects: disassociation between pulse wave velocity and heart rate

2004 ◽  
Vol 17 (5) ◽  
pp. S135 ◽  
Author(s):  
C REID
Keyword(s):  
Heart Rate ◽  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Arterial Compliance ◽  
Isometric Exercise ◽  
Normal Subjects ◽  
Grip Test

Forearm Arterial Compliance: The Validation of a Plethysmographic Technique for the Measurement of Arterial Compliance

1984 ◽  
Vol 67 (1) ◽  
pp. 69-72 ◽  
Author(s):  
D. Fitchett ◽  
J. D. Bouthier ◽  
A. Ch. Simon ◽  
J. A. Levenson ◽  
M. E. Safar
Keyword(s):  
Pulse Wave Velocity ◽  
Vascular Disease ◽  
Wave Velocity ◽  
Brachial Artery ◽  
Pulse Wave ◽  
Arterial Compliance ◽  
Normal Subjects ◽  
Volume Changes ◽  
Arterial Diameter ◽  
Pulsed Wave Doppler

1. Arterial compliance was determined in eight normal subjects and 23 patients with hypertension and vascular disease by two independent techniques: (a) with a plethysmographic strain gauge (to measure pulsatile forearm volume changes as representing intra-arterial volume changes) and an automated sphygmomanometric system (to measure pulse pressure) and (b) calculation from the local pulse wave velocity and dimension of the brachial artery measured by pulsed wave Doppler ultrasound. 2. Arterial compliance measured both by the plethysmographic technique and calculated from the pulse wave velocity was reduced in subjects with hypertension and vascular disease as compared with normal subjects. 3. The regression equation between the compliance determined by the plethysmographic technique (x) and that calculated (y) from the pulse wave velocity and brachial arterial diameter was y = 3.35x + 1.53, r = 0.77, P < 0.001. The good correlation appears to validate the plethysmographic technique as a method of determining arterial compliance.

Interaction of aortic and carotid sinus baroreceptors: effect of activation times

1975 ◽  
Vol 228 (1) ◽  
pp. 238-243 ◽  
Author(s):  
PG Katona ◽  
KS Tan
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Electrical Stimulation ◽  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Carotid Sinus ◽  
Relative Timing ◽  
Relative Delay ◽  
Activation Times

Changes in pulse-wave velocity were simulated by changing the relative timing between aortic and carotid sinus barorecptor activity in anesthetized rabbits and dogs. In the rabbit, electrical stimulation was used to vary the timing; in the dog, it was also varied by perfusing the carotid sinuses with externally generated pressure pulses that could be triggered in any portion of the cardiac cycle. Changing the relative delay between aortic and carotid sinsus nerve stimulation did not result in variations of blood pressure or heart rate in the rabbit. Varing the time of electrical stimulation of the carotid sinus nerve caused at most 5 mmHg change of blood pressure in the dog. Delay-related heart-rate changes could be usually observed only when the stimulus consisted of short, high-intensity bursts. When the carotid sinus was externally perfused with pulses of pressure, only one out of five dogs showed delay-related variations in blood pressure (3mmHg) and heart rate (6 beats/min). It is concluded that variations in pulse-wave velocity are unlikely to play a significant role in acute cardiovascular control.

scholarly journals Differential Associations for Salivary Sodium, Potassium, Calcium, and Phosphate Levels with Carotid Intima Media Thickness, Heart Rate, and Arterial Stiffness

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Carlos Labat ◽  
Silke Thul ◽  
John Pirault ◽  
Mohamed Temmar ◽  
Simon N. Thornton ◽  
...  
Keyword(s):  
Heart Rate ◽  
Cardiovascular Risk ◽  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Risk Evaluation ◽  
Pulse Wave ◽  
Intima Media Thickness ◽  
Sodium Potassium ◽  
Media Thickness ◽  
Salivary Electrolytes

Salivary biomarkers may offer a noninvasive and easy sampling alternative in cardiovascular risk evaluation. The aim of the present study was to establish associations of salivary potassium, sodium, calcium, and phosphate levels with the cardiovascular phenotype determined by carotid ultrasound and carotid-femoral pulse wave velocity and to identify possible covariates for these associations. N=241 samples of nonstimulated whole buccal saliva were obtained from subjects with (n=143; 59%) or without (n=98; 41%) hypertension. The potassium concentrations were 10-fold higher in saliva compared with plasma, whereas sodium concentrations exhibited the reverse relation between saliva and blood. There were no significant correlations between the levels of sodium, potassium, or calcium in saliva and plasma. All salivary electrolytes, except sodium, were significantly associated with age. In age-adjusted analyses, salivary potassium was significantly associated with carotid artery intima media thickness (cIMT) and carotid-femoral pulse wave velocity, and these associations were at the limit of significance in multivariate analyses including prevalent cardiovascular disease and risk factors. Body mass index was a significant confounder for salivary potassium. Salivary phosphate was significantly associated with cIMT in the multivariate analysis. Salivary potassium, calcium, and phosphate levels were significantly associated with heart rate in the univariate age-adjusted as well as in two different multivariate models, whereas no significant associations between sodium and heart rate were observed. In conclusion, the differential association of salivary electrolytes with cardiovascular phenotypes indicates that these electrolytes should be further studied for their predictive value as noninvasive biomarkers for cardiovascular risk evaluation.

Analysis of Correlation between Heart Rate and Pulse Wave Velocity using Cardiovascular Simulator

2020 ◽  
Vol 77 (11) ◽  
pp. 1061-1069
Author(s):  
Min-Woo Lee ◽  
Min Jang ◽  
Jung-Hoon Lee ◽  
Dong-Eun Kim ◽  
Sang-Hoon Shin
Keyword(s):  
Heart Rate ◽  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Cardiovascular Simulator

[OP.5B.01] QUANTIFICATION OF HEART RATE DEPENDENCY OF AORTIC PULSE WAVE VELOCITY

2016 ◽  
Vol 34 ◽  
pp. e57 ◽  
Author(s):  
I. Tan ◽  
B. Spronck ◽  
T. Delhaas ◽  
K. Reesink ◽  
H. Kiat ◽  
...  
Keyword(s):  
Heart Rate ◽  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Aortic Pulse Wave Velocity ◽  
Rate Dependency
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