Results 41 to 50 of about 1,034,710 (311)

A calcified polymeric valve for valve-in-valve applications [PDF]

open access: yesJournal of Biomechanics, 2017
The prevalence of aortic valve stenosis (AS) is increasing in the aging society. More recently, novel treatments and devices for AS, especially transcatheter aortic valve replacement (TAVR) have significantly changed the therapeutic approach to this disease.
Falahatpisheh, Ahmad   +3 more
openaire   +3 more sources

Conduction Abnormalities After Transcatheter Aortic Valve Replacement

open access: yesUS Cardiology Review, 2019
Transcatheter aortic valve replacement (TAVR) has been established as a therapeutic option for patients with severe symptomatic aortic stenosis who are of intermediate or higher surgical risk.
Somsupha Kanjanauthai   +3 more
doaj   +1 more source

Cantorin joukko [PDF]

open access: yes, 2012
Tässä tutkielmassa tarkastellaan Cantorin joukkoa ja sen soveltamista muutamiin matemaattisiin tarkoituksiin. Cantorin joukon määrittelyssä otetaan huomioon sen monet topologiset ominaisuudet.
Valve, Heikki
core  

Bioprosthetic Aortic Valve Fracture During Valve-in-valve Transcatheter Aortic Valve Implantation

open access: yesInterventional Cardiology Review, 2019
The limited durability of surgical bioprostheses, combined with an ageing population, has led to an increasing demand for replacing degenerated bioprosthetic surgical heart valves, which is projected to increase. Valve-in-valve transcatheter aortic valve implantation involves implanting a transcatheter heart valve within a degenerated bioprosthetic ...
John Phineas O’Donnell   +1 more
openaire   +3 more sources

Valve-in-Valve Replacement Using a Sutureless Aortic Valve [PDF]

open access: yesAmerican Journal of Case Reports, 2016
BACKGROUND We present a unique case of a 61-year-old female patient with homograft deterioration after redo surgery for prosthetic valve endocarditis with root abscess. CASE REPORT The first operation was performed for type A dissection with root, arch, and elephant trunk replacement of the thoracic aorta.
Dohmen, Pascal M.   +4 more
openaire   +2 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Reciprocating engines [PDF]

open access: yes, 1981
An intake valve arrangement for positively controlling the opening and closing of the poppet valve in a hot gas cylinder in a hydrazine powered engine is described. The poppet valve is operated by the piston and gas pressure only. The poppet valve uses a
Akkerman, J. W.
core   +1 more source

Lessons Learned From a Delayed‐Start Trial of Modafinil for Freezing of Gait in Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Freezing of gait (FOG) in people with Parkinson's disease (PwPD) is debilitating and has limited treatments. Modafinil modulates beta/gamma band activity in the pedunculopontine nucleus (PPN), like PPN deep brain stimulation. We therefore tested the hypothesis that Modafinil would improve FOG in PwPD.
Tuhin Virmani   +8 more
wiley   +1 more source

Combined nitrogen and phosphorus removal from wastewaters [PDF]

open access: yes, 1985
Yhdistetty typen ja fosforin poisto ...
Valve, Matti
core  

Impact of Asymptomatic Intracranial Hemorrhage on Outcome After Endovascular Stroke Treatment

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Endovascular treatment (EVT) achieves high rates of recanalization in acute large‐vessel occlusion (LVO) stroke, but functional recovery remains heterogeneous. While symptomatic intracranial hemorrhage (sICH) has been well studied, the prognostic impact of asymptomatic intracranial hemorrhage (aICH) after EVT is less certain ...
Shihai Yang   +22 more
wiley   +1 more source

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