Results 1 to 10 of about 5,179,529 (194)

Effect of pulsatile flow perfusion on decellularization [PDF]

open access: yesBioMedical Engineering OnLine, 2018
Background Decellularized animal organs have been used as scaffolds for tissue engineering. To make a properly functioning scaffolds, the extracellular matrix (ECM) components must be preserved after decellularization.
Sung Min Park   +3 more
doaj   +3 more sources

Nonlinear hydrodynamic instability and turbulence in pulsatile flow. [PDF]

open access: yesProc Natl Acad Sci U S A, 2020
Significance The inner lining of blood vessels, the endothelium, is shear sensitive. Fluctuating shear stresses and disordered flow are responsible for cellular dysfunction, leading to the development of atherosclerotic lesions.
Xu D   +6 more
europepmc   +3 more sources

Non-pulsatile blood flow is associated with enhanced cerebrovascular carbon dioxide reactivity and an attenuated relationship between cerebral blood flow and regional brain oxygenation

open access: yesCritical Care, 2019
Background Systemic blood flow in patients on extracorporeal assist devices is frequently not or only minimally pulsatile. Loss of pulsatile brain perfusion, however, has been implicated in neurological complications.
Cecilia Maria Veraar   +9 more
doaj   +2 more sources

Electrocardiogram-synchronized pulsatile extracorporeal life support preserves left ventricular function and coronary flow in a porcine model of cardiogenic shock. [PDF]

open access: yesPLoS ONE, 2018
Veno-arterial extracorporeal life support (ECLS) is increasingly being used to treat rapidly progressing or severe cardiogenic shock. However, it has been repeatedly shown that increased afterload associated with ECLS significantly diminishes left ...
Petr Ostadal   +14 more
doaj   +2 more sources

Effects of pulsatile flow on postoperative recovery in adult cardiac surgery with cardiopulmonary bypass: A systematic review and meta-analysis of randomized controlled trials [PDF]

open access: yesHeliyon
Background: The role of pulsatile versus non-pulsatile flow during cardiopulmonary bypass (CPB) is still in debate. This systematic review aimed to comprehensively assess the impact of pulsatile versus non-pulsatile flow on patients’ recovery.
Weidong Yan   +6 more
doaj   +2 more sources

Generation of Pulsatile Flow using Clinical Continuous Flow Pumps [PDF]

open access: yesJHLT Open
Background: With the increasing use of mechanical circulatory support for long-term augmentation of cardiopulmonary function, the need for safer devices is apparent.
Joav Birjiniuk   +4 more
doaj   +2 more sources

Numerical simulation of spatiotemporal red blood cell aggregation under sinusoidal pulsatile flow [PDF]

open access: yesScientific Reports, 2021
Previous studies on red blood cell (RBC) aggregation have elucidated the inverse relationship between shear rate and RBC aggregation under Poiseuille flow.
Cheong-Ah Lee, Dong-Guk Paeng
doaj   +2 more sources

A Multi-Domain Simulation Study of a Pulsatile-Flow Pump Device for Heart Failure With Preserved Ejection Fraction [PDF]

open access: yesFrontiers in Physiology, 2022
Mechanical circulatory support (MCS) devices are currently under development to improve the physiology and hemodynamics of patients with heart failure with preserved ejection fraction (HFpEF).
Caglar Ozturk   +4 more
doaj   +2 more sources

Aortic wave dynamics and its influence on left ventricular workload. [PDF]

open access: yesPLoS ONE, 2011
The pumping mechanism of the heart is pulsatile, so the heart generates pulsatile flow that enters into the compliant aorta in the form of pressure and flow waves.
Niema M Pahlevan, Morteza Gharib
doaj   +7 more sources

Large–Eddy simulation of pulsatile blood flow [PDF]

open access: yesMedical Engineering and Physics, 2009
Large-Eddy simulation (LES) is performed to study pulsatile blood flow through a 3D model of arterial stenosis. The model is chosen as a simple channel with a biological type stenosis formed on the top wall.
Manosh C Paul   +2 more
exaly   +3 more sources

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