Results 261 to 270 of about 200,381 (301)

Time-varying pulmonary arterial compliance

Journal of Applied Physiology, 1991
We tested the hypothesis that pulmonary arterial compliance (Ca) varies during the ventilatory cycle. Pressure and flow in the main pulmonary artery were measured in open-chest dogs under chloralose anesthesia (n = 12) with a positive-pressure volume-cycled ventilator.
B J, Grant, J M, Fitzpatrick, B B, Lieber   +2 more
openaire   +2 more sources

Increased arterial compliance in decompensated cirrhosis

Journal of Hepatology, 1999
In patients with cirrhosis, the systemic circulation is hyperdynamic with low arterial blood pressure and reduced systemic vascular resistance. The present study was undertaken to estimate the compliance of the arterial tree in relation to severity of cirrhosis, circulating level of the vasodilator, calcitonin gene-related peptide (CGRP) and mean ...
Søren Møller, Flemming Bendtsen, Jens H Henriksen   +2 more
exaly   +3 more sources

Differences in Arterial Compliance Among Normotensive Adolescent Groups: Collins Arterial Compliance in Adolescents

Pediatric Cardiology, 2008
Decreased arterial compliance is an important predictor of cardiovascular risk. Pulse wave velocity correlates well with arterial compliance. Gender and ethnic differences in adult populations have been described. However, few data are available evaluating arterial compliance in adolescent subjects.
R Thomas, Collins, Grant W, Somes, Bruce S, Alpert   +2 more
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Variability in arterial diameter and compliance

Journal of Hypertension, 1992
Some antihypertensive drugs are known to increase arterial compliance in hypertensives; how far compliance can be increased is unknown.We studied eight mildly hypertensive patients to determine how far radial artery compliance can be acutely increased, i.e.
S, Trazzi, S, Omboni, C, Santucciu, G, Parati, G, Mancia   +4 more
openaire   +2 more sources

Definition of arterial compliance

American Journal of Physiology-Heart and Circulatory Physiology, 2000
To the editor : In the March 1999 issue of The American Journal of Physiology , Hardt et al. ([1][1]) presented an elegant experimental study on the validation of intravascular ultrasound (IVUS) in assessing changes in the pressure-diameter relationship in the aorta of dogs.
Piergiorgio Tozzi, Antonio Corno, Daniel Hayoz   +2 more
openaire   +1 more source

Arterial distensibility and compliance in hypertension

The Netherlands Journal of Medicine, 1995
Under normal circumstances arteries, especially the larger elastic ones, distend during systole, and hence are able to store volume energy during this phase of the cardiac cycle. In this way the increase in blood pressure during systole will be leveled off.
R S, Reneman, A P, Hoeks
openaire   +2 more sources

Systemic Arterial Compliance Following Ultra-Marathon

International Journal of Sports Medicine, 2012
There is a growing interest in training for and competing in race distances that exceed the marathon; however, little is known regarding the vascular effects of participation in such prolonged events, which last multiple consecutive hours. There exists some evidence that cardiovascular function may be impaired following extreme prolonged exercise, but ...
J F, Burr, S S D, Bredin, A, Phillips, H, Foulds, A, Cote, S, Charlesworth, A C, Ivey, T C, Drury, R, Fougere, D E R, Warburton   +9 more
openaire   +2 more sources

Clinical relevance of distal arterial compliance

Journal of Hypertension, 1992
To calculate the compliance of resistance vessels.Pressure-flow data (plethysmographic and sphygmomanometric) were obtained non-invasively from six normal and six hypertensive subjects, and the results were compared with similar data obtained previously from large blood vessels.
D J, Patel, B R, Coleman, R G, Carpentier, P P, Mehrotra, R J, Tearney, L N, Cothran, C L, Curry   +6 more
openaire   +2 more sources

Estimation of Arterial Compliance

1987
As has been demonstrated in several previous chapters, the Windkessel model of the arterial system, despite its simplicity and attendant limitations, continues to be extremely useful both for understanding vascular physiology and for investigating ventricular/vascular coupling.
Frank C. P. Yin, Zhaorong Liu, Kenneth P. Brin   +2 more
openaire   +1 more source

In vivo arterial compliance in man

Clinical Physics and Physiological Measurement, 1982
Six hundred 'normal' volunteers have been examined, ranging in age from neonates of three days to adults of 65 years. Average compliance was measured for the aortic, iliac, and leg arterial pathways using a non-invasive atraumatic Doppler ultrasound method in non-sedated subjects.
A A, Laogun, R G, Gosling
openaire   +2 more sources