Now showing items 1-9 of 9
Impact of arterial cross-clamping during vascular surgery on arterial stiffness measured by the augmentation index and fractal dimension of arterial pressure
Arterial cross-clamping is a common strategy used in vascular surgery and its duration is an independent predictor of surgical outcomes. The impact of arterial cross-clamping on the viscoelastic properties of the arterial ...
Análisis comparativo de la rigidez arterial evaluada en forma no invasiva en pacientes hemodializadosComparative analysis of arterial stiffness non invasively evaluated in hemodialyzed patients
(Asociación Regional de Diálisis y Trasplantes Renales, 2016-06)
pacientes hemodializados se producen en vasos elásticos y musculares pero sólo la Velocidad de la Onda del Pulso (VOP) aórtica ha demostrado ser un índice de alto valor pronóstico. Lo cual deja de lado a las arterias ...
Central-to-peripheral arterial stiffness gradient in hemodialyzed patients depends on the location of the upper-limb vascular access
(Bentham Science Publishers, 2018-11)
Background: Pulse wave velocity ratio (PWV-ratio), a measure of central-to-peripheral arterial stiffness gradient, is calculated as a quotient between carotid-femoral and carotid-radial PWV (cf-PWV/cr-PWV). This new index ...
Forward and backward aortic components and reflection indexes in children and adolescents: Determinants and role in high pressure states
(Bentham Science Publishers, 2018-04)
Background: High blood pressure states (HBP) would differ in wave components and reflections indexes, which could associate clinical and prognostic implications. The study aims: 1) to characterize the association of aortic ...
Center-to-periphery arterial stiffness gradient is attenuated and/or reversed in pregnancy-associated hypertension
(Frontiers Media, 2021-12)
Background: Non-pregnant (NP) women have a progressive increase in arterial stiffness from central-to-peripheral arteries [“stiffness gradient” (SG)], which is of physiologic importance since excessive pulsatility is ...
Effects of Cross-Clamping on Vascular Mechanics: Comparing Waveform Analysis With a Numerical Model
(Academic Press Inc Elsevier Science, 2019-09-12)
Background: Immediate changes in vascular mechanics during aortic cross-clamping remain widely unknown. By using a numerical model of the arterial network, vascular compliance and resistance can be estimated and the time ...