Results 71 to 80 of about 7,281,050 (275)

Synchronization of Wave Flows of Arterial and Venous Blood and Phases of the Cardiac Cycle: Part 3 [PDF]

open access: yesInternational Journal of Biomedicine, 2018
Hemodynamic indices studied in healthy people were obtained by catheterization in various vascular areas: the chambers of the heart (ventricles, atria, coronary sinus), pulmonary trunk, sigmoid sinus, aorta, inferior vena cava, superior vena cava (SVC ...
Alexander G. Kruglov   +3 more
doaj   +1 more source

Relationship between the hemodynamic profile and resistant hypertension in pregnant patients with hypertensive crisis

open access: yesHypertension in Pregnancy, 2023
Objective Reducing maternal morbidity and mortality has been a challenge for low and middle-income countries, especially in the setting of hypertensive disorders of pregnancy.
María Andrea Zambrano   +8 more
doaj   +1 more source

Use of hemodynamic parameters in the diagnosis of mesenteric insufficiency

open access: yesJournal of Vascular Surgery, 1986
To evaluate the hemodynamic characteristics of the normal mesenteric circulation, five parameters of the velocity waveforms were measured in 15 normal subjects in the celiac and superior mesenteric arteries (SMA) in the pre- and postprandial periods. It was noted that changes in celiac artery flow after eating was minimal, indicating that this vessel's
Ted R. Kohler   +3 more
openaire   +3 more sources

Estimated pretreatment hemodynamic prognostic factors of aneurysm recurrence after endovascular embolization. [PDF]

open access: yes, 2017
BACKGROUND:Hemodynamic factors play important roles in aneurysm recurrence after endovascular treatment. OBJECTIVE:Predicting the risk of recurrence by hemodynamic analysis using an untreated aneurysm model is important because such prediction is ...
Ishibashi, Toshihiro   +8 more
core   +1 more source

Cardiovascular “Patterns” of H2S and SSNO-Mix Evaluated from 35 Rat Hemodynamic Parameters

open access: yesBiomolecules, 2021
This work is based on the hypothesis that it is possible to characterize the cardiovascular system just from the detailed shape of the arterial pulse waveform (APW).
Lenka Tomasova   +5 more
doaj   +1 more source

Changes of Blood Pressure and Hemodynamic Parameters after Oral Magnesium Supplementation in Patients with Essential Hypertension—An Intervention Study

open access: yesNutrients, 2018
The objective of this study was to examine the changes of blood pressure and hemodynamic parameters after oral magnesium supplementation in patients with essential hypertension. The single-arm non-blinded intervention study comprised 48 patients (19 men;
Nikolina Banjanin, G. Belojević
semanticscholar   +1 more source

Estimating effective connectivity in linear brain network models

open access: yes, 2017
Contemporary neuroscience has embraced network science to study the complex and self-organized structure of the human brain; one of the main outstanding issues is that of inferring from measure data, chiefly functional Magnetic Resonance Imaging (fMRI ...
Bertoldo, Alessandra   +3 more
core   +1 more source

Fluid-structure interaction simulation of pulse propagation in arteries : numerical pitfalls and hemodynamic impact of a local stiffening [PDF]

open access: yes, 2014
When simulating the propagation of a pressure pulse in arteries, the discretization parameters (i.e. the time step size and the grid size) need to be chosen carefully in order to avoid a decrease in amplitude of the traveling wave due to numerical ...
Degroote, Joris   +4 more
core   +1 more source

RESULTS OF PROSTHETIC AORTIC STENOSIS IN PATIENTS AFTER IMPLANTATION OF AORTIC ALLOGRAFT

open access: yesŽurnal Grodnenskogo Gosudarstvennogo Medicinskogo Universiteta, 2019
Objective: To evaluate hemodynamic parameters on an implantable allograft, as well as to study left ventricular (LV) remodeling, various complications arising in patients after allograft implantation in aortic valve stenosis in the early and late periods.
Lazuta S. S.   +2 more
doaj   +1 more source

GRU Neural Network Improved Bioimpedance Based Stroke Volume Estimation during Ergometry Stress Test

open access: yesSensors, 2022
Cardiovascular diseases (CVDs) are one of the leading members of non-communicable diseases. An early diagnosis is essential for effective treatment, to reduce hospitalization time and health care costs.
Mike Urban   +6 more
doaj   +1 more source

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