Results 51 to 60 of about 51,198 (276)

Percutaneous pulmonary valve implantation in humans - Results in 59 consecutive patients [PDF]

, 2005
Background - Right ventricular outflow tract (RVOT) reconstruction with valved conduits in infancy and childhood leads to reintervention for pulmonary regurgitation and stenosis in later life.Methods and Results - Patients with pulmonary regurgitation ...
Bonhoeffer, P, Boudjemline, Y, Coats, L, Cooper, J, Deanfield, J, Derrick, G, Hegde, SR, Khambadkone, S, Muthurangu, V, Pellerin, D, Razavi, RS, Taylor, A, Tsang, V   +12 more
core   +1 more source

The clinical significance of the incorporation of tissue Doppler imaging into low-dose Dobutamine stress echocardiography in patients with aortic stenosis prior to Transcatheter aortic valve implantation

BMC Cardiovascular Disorders, 2020
Background Low-dose dobutamine stress echocardiography (DSE) is indicated in patients with low flow (stroke volume index [SVi] 
Sahrai Saeed, Joerg Kellermair, Jon Herstad, Øyvind Bleie   +3 more
doaj   +1 more source

Sigmoid isostiffness-lines: An in-vitro model for the assessment of aortic stenosis severity

Frontiers in Cardiovascular Medicine, 2022
IntroductionThe aortic valve opening area (AVA), used to quantify aortic stenosis severity, depends on the transvalvular flow rate (Q). The currently accepted clinical echocardiographic method assumes a linear relation between AVA and Q.
Eric Buffle, Eric Buffle, Michael Stucki, Michael Stucki, Shaokai Zheng, Maxime Chiarelli, Christian Seiler, Dominik Obrist, Stefano F. de Marchi   +8 more
doaj   +1 more source

High-sensitivity troponin I concentrations are a marker of an advanced hypertrophic response and adverse outcomes in patients with aortic stenosis [PDF]

, 2014
Aims: High-sensitivity cardiac troponin I (cTnI) assays hold promise in detecting the transition from hypertrophy to heart failure in aortic stenosis.
A. L. Hunter, A. Maria Choy, A. S. V. Shah, C. C. Lang, C. W. L. Chin, Cowell, D. A. McAllister, D. E. Newby, Dweck, Dweck, F. E. Strachan, J. P. Langrish, M. R. Dweck, Messroghli, Mills, N. A. Boon, N. L. Mills, Nkomo, Rosjo, S. Alam, S. Joanna Cowell, S. Walker, Thygesen, Wieczorek   +23 more
core   +5 more sources

A model based on clinical parameters to identify myocardial late gadolinium enhancement by magnetic resonance in patients with aortic stenosis: An observational study [PDF]

, 2020
Objective With increasing age, the prevalence of aortic stenosis grows exponentially, increasing left heart pressures and potentially leading to myocardial hypertrophy, myocardial fibrosis and adverse outcomes.
Alpendurada, Francisco, Dweck, Marc, Kuk, Mariya, Newsome, Simon, Pennell, Dudley J, Prasad, Sanjay K, Vassiliou, Vassilios S   +6 more
core   +1 more source

The prognostic significance of stroke volume index in low gradient severe aortic stenosis: from the national echo database of Australia

The International Journal of Cardiovascular Imaging, 2023
Approximately 50% of patients with severe aortic stenosis (AS) in clinical practice present with ‘low-gradient’ haemodynamics. Stroke Volume Index (SVI) is a measure of left ventricular output, with ‘normal-flow’ considered as  > 35 ml/m2.
A. Snir, M. Ng, G. Strange, D. Playford, S. Stewart, D. Celermajer   +5 more
semanticscholar   +1 more source

Quantification of Local Hemodynamic Alterations Caused by Virtual Implantation of Three Commercially Available Stents for the Treatment of Aortic Coarctation [PDF]

, 2013
Patients with coarctation of the aorta (CoA) are prone to morbidity including atherosclerotic plaque that has been shown to correlate with altered wall shear stress (WSS) in the descending thoracic aorta (dAo).
Dholakia, Ronak Jashwant, Feinstein, Jeffrey A, Kwon, Sung, LaDisa, John F.   +3 more
core   +2 more sources

Early Aortic Valve Replacement in Symptomatic Normal-Flow, Low-Gradient Severe Aortic Stenosis: A Propensity Score–Matched Retrospective Cohort Study

Korean Circulation Journal, 2023
Author's summary The benefits of aortic valve replacement (AVR) in symptomatic normal-flow, low-gradient (NFLG) severe aortic stenosis (AS) are controversial and current guidelines do not recommend AVR in these patients. Through this study, we found that
Kyu Kim, Iksung Cho, Kyu-Yong Ko, Seung-Hyun Lee, Sak Lee, G. Hong, J. Ha, C. Shim   +7 more
semanticscholar   +1 more source

Role of Echocardiography Before Transcatheter Aortic Valve Implantation (TAVI) [PDF]

, 2016
Aortic stenosis (AS) is the most common primary valve disorder in the elderly with an increasing prevalence; transcatheter aortic valve implantation (TAVI) has become an accepted alternative to surgical aortic valve replacement (AVR) in the high risk or ...
Badiani, S, Bhattacharyya, S, Lloyd, G
core   +1 more source

Aortic Stenosis, a Left Ventricular Disease: Insights from Advanced Imaging [PDF]

, 2016
Aortic stenosis (AS) is the most common primary valve disorder in the elderly with an increasing prevalence. It is increasingly clear that it is also a disease of the left ventricle (LV) rather than purely the aortic valve.
Badiani, S, Bhattacharyya, S, Lloyd, G, Moon, JC, Treibel, TA, van Zalen, J   +5 more
core   +1 more source