Results 121 to 130 of about 127,736 (302)

Stochastic Modelling and Dynamic Analysis of Cardiovascular System with Rotary Left Ventricular Assist Devices [PDF]

open access: yesMathematical Problems in Engineering, 2018, 2018
The left ventricular assist device (LVAD) has been used for end-stage heart failure patients as a therapeutic option. The aortic valve plays a critical role in heart failure and its treatment with LVAD. The cardiovascular-LVAD model is often used to investigate the physiological demands required by patients and predict the hemodynamic of the native ...
arxiv  

Estimation of Cardiac Valve Annuli Motion with Deep Learning [PDF]

open access: yesarXiv, 2020
Valve annuli motion and morphology, measured from non-invasive imaging, can be used to gain a better understanding of healthy and pathological heart function. Measurements such as long-axis strain as well as peak strain rates provide markers of systolic function.
arxiv  

Ultrasound Assessment of Venous and Pulmonary Congestion in Left Ventricular Assist Devices Patients

open access: yesArtificial Organs, EarlyView.
Renal venous stasis index (RVI) of Doppler renal ultrasound index is the peripheral vein ultrasound associated with high right atrial pressure, and right displacement of the interatrial septum is the echocardiographic parameter associated with high pulmonary wedge pressure.
Attilio Iacovoni   +8 more
wiley   +1 more source

Evaluation of TTK Chitra heart valve prosthesis in pediatric patients. [PDF]

open access: yesIndian J Thorac Cardiovasc Surg, 2023
Varma PK   +3 more
europepmc   +1 more source

Comparative study of wall shear stress at the ascending aorta for different mechanical heart valve prostheses [PDF]

open access: yesarXiv, 2018
An experimental study is reported which investigates the wall shear stress (WSS) distribution in a transparent model of the human aorta comparing a bileaflet mechanical heart valve (BMHV) with a trileaflet mechanical heart valve (TMHV) in physiological pulsatile flow.
arxiv  

Association of Aortic Root and Valve Morphology With De Novo Aortic Valve Regurgitation After Implantation of Left Ventricular Assist Device

open access: yesArtificial Organs, EarlyView.
Large preoperative aortic virtual basal ring diameter to geometric height ratio may be a novel risk factor for de novo aortic insufficiency after durable LVAD implantation and assist in determining surgical indications for concomitant aortic valve procedures with LVAD implantation.
Takashi Murakami   +8 more
wiley   +1 more source

Five-Year Follow-up After Heart Valve Replacement With the CarboMedics Bileaflet Prosthesis [PDF]

open access: bronze, 1997
Suzanne Rödler   +5 more
openalex   +1 more source

Manufacturing studies of a polymeric/composite heart valve prosthesis

open access: yesPolymer Composites
AbstractCurrent transcathether heart valves rely on metal mesh stents, resulting in discontinuous stent‐leaflet interfaces that introduce stress concentrations, reducing valve lifetime. This work aims to investigate non‐conventional methods to create a fully polymeric transcatheter heart valve, exhibiting a quasi‐continuous interface with ...
Mary Jialu Chen   +5 more
openaire   +1 more source

Vitamin D Deficiency and Driveline Infections in Patients With Left Ventricular Assist Devices

open access: yesArtificial Organs, EarlyView.
Pre‐operative vitamin D deficiency was associated with a three‐fold increased risk of driveline infection in left ventricular assist device recipients. This potentially modifiable risk factor could be readily addressed through pre‐implant screening and supplementation, potentially reducing the burden of this common complication.
Wesley A. Borman   +4 more
wiley   +1 more source

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