Results 161 to 170 of about 796,036 (401)

Fractional Flow Reserve Directed Percutaneous Coronary Intervention Optimization Using High‐Definition Intravascular Ultrasound in Non‐ST‐Segment Elevation Acute Coronary Syndrome Versus Chronic Coronary Syndrome

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Intravascular ultrasound (IVUS)‐guided optimization of suboptimal fractional flow reserve (FFR) following percutaneous coronary intervention (PCI) results in a significant increase in both post‐PCI FFR and minimal lumen and stent areas (MLA and MSA, respectively).
Frederik T. W. Groenland   +9 more
wiley   +1 more source

Subcoronary versus supracoronary aortic stenosis. an experimental evaluation

open access: yesJournal of Cardiothoracic Surgery, 2011
Background Valvular aortic stenosis is the most common cause of left ventricular hypertrophy due to gradually increasing pressure work. As the stenosis develop the left ventricular hypertrophy may lead to congestive heart failure, increased risk of ...
Hasenkam J Michael   +3 more
doaj   +1 more source

Advancing aortic stenosis assessment: validation of fluid-structure interaction models against 4D flow MRI data [PDF]

open access: yesarXiv
Systematic in vivo validations of computational models of the aortic valve remain scarce, despite successful validation against in vitro data. Utilizing a combination of computed tomography and 4D flow magnetic resonance imaging data, we developed patient-specific fluid-structure interaction models of the aortic valve immersed in the aorta for five ...
arxiv  

Aortic Root Anatomy and Impact on New‐Onset Left Bundle Branch Block After Transcatheter Aortic Valve Implantation

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Angulation of virtual basal ring (VBR), also known as aortic annulus, in relation to sino‐tubular junction (STJ) may lead to greater exposure of implanted stent to the conduction system, consequently increasing the risk of left bundle branch block (LBBB).
Habib Layoun   +13 more
wiley   +1 more source

A wolf in sheep's clothing—aortic stenosis and cardiac amyloidosis: “RAISE”ing awareness in clinical practice

open access: yesFrontiers in Cardiovascular Medicine
Aesop's fable of the wolf in sheep's clothing encourages us to look beneath the exterior appearance of a situation and evaluate the truth that lies beneath. This concept should be applied when managing older patients with severe aortic stenosis.
H. Sabbour   +6 more
doaj   +1 more source

Aortic stenosis [PDF]

open access: yesClinical Cardiology, 1998
Edward A. Geiser   +2 more
openaire   +2 more sources

Echocardiographic evaluation of velocity ratio, velocity time integral ratio, and pulmonary valve area in dogs with pulmonary valve stenosis. [PDF]

open access: yes, 2018
BackgroundVelocity ratio, velocity time integral (VTI) ratio, and pulmonary valve area indexed to body surface area (iPVA) are methods of assessment of pulmonary valve stenosis (PS) severity that are less dependent on blood flow. Studies evaluating these
Bélanger, Catherine   +5 more
core   +1 more source

Management of Cardiac Implantable Electronic Devices in Patients With Severe Symptomatic Tricuspid Regurgitation—Proposed Algorithm and Selected Case Examples

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Severe tricuspid regurgitation (TR) is associated with significant morbidity and mortality. Management of severe TR includes treatment of the underlying cause(s), medical therapy and less commonly surgical tricuspid valve repair. Newer transcatheter tricuspid valve repair devices show promise for those patients who remain symptomatic with ...
Mina M. Kerolos   +4 more
wiley   +1 more source

The Immediate And Intermediate Results Of Percutaneous Balloon Aortic Valvuloplasty In Patients With Congenital Valvular Aortic Stenosis

open access: yesمجله كليه طب الكندي, 2019
Background: Aortic valve stenosis results from minor to severe degrees of aortic valve maldevelopment. This stenosis causes mild to severe obstruction of the left ventricular outflow .
Hussein A. Alwahab
doaj   +1 more source

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