Filtered By:
Condition: Aortic Stenosis
This page shows you your search results in order of relevance. This is page number 4.
Order by Relevance | Date
Total 1228 results found since Jan 2013.
Geometry of the left ventricular outflow tract assessed by 3D TEE in patients with aortic stenosis: impact of upper septal hypertrophy on measurements of Doppler-derived left ventricular stroke volume
Conclusions3D TEE can provide a precise assessment of the LVOT in AS. USH affects the LVOT geometry in patients with AS, which might lead to inaccurate assessments of disease severity.
Source: Journal of Echocardiography - May 24, 2018 Category: Cardiology Source Type: research
Impact of low stroke volume on mortality in patients with severe aortic stenosis and preserved left ventricular ejection fraction
ConclusionLow flow defined as SVi < 30 mL/m2 or SV < 55 mL is an important outcome predictor in severe AS with preserved LVEF under medical and surgical management. Further studies are needed to prospectively test these values for risk stratification and decision making.
Source: European Heart Journal - March 13, 2018 Category: Cardiology Source Type: research
The Utility of Flow Rate Compared with Left Ventricular Stroke Volume Index in the Hemodynamic Classification of Severe Aortic Stenosis with Preserved Ejection Fraction
Conclusions: The FRlow/MGlow subset of AS is associated with the worst prognosis, and FR is not superior to SVi in the hemodynamic classification of severe AS.Cardiology 2018;141:37 –45
Source: Cardiology - October 10, 2018 Category: Cardiology Source Type: research
Normalized stroke volume in severe aortic stenosis with preserved ejection fraction: Reference values and outcome implications
ConclusionWe provide reference values and appropriate normalization methods for SV by Doppler-echocardiography. Patients with LG severe AS, preserved LVEF and “true” LF are at high-risk of death during follow-up. (Fig. 1)
Source: Archives of Cardiovascular Diseases Supplements - June 7, 2019 Category: Cardiology Source Type: research
TAVR for Bicuspid vs Tricuspid Aortic Valve Stenosis and Outcomes of Mortality or Stroke
This registry-based cohort study compared mortality and stroke rates among patients with bicuspid and tricuspid aortic stenosis who had undergone TAVR to determine whether advances in technology and in valve devices improved outcomes for patients with bicuspid aortic anatomy.
Source: JAMA - June 11, 2019 Category: General Medicine Source Type: research
Flow, Reflected by Stroke Volume Index, is a Risk Marker in High Gradient Aortic Stenosis Patients Undergoing Transcatheter Aortic Valve Replacement
ConclusionsSVi can further characterise patients with HG-AS and may help to identify those who are at increased risk following TAVR.
Source: Canadian Journal of Cardiology - August 30, 2019 Category: Cardiology Source Type: research
Research Articles Ventricular stroke work and vascular impedance refine the characterization of patients with aortic stenosis
Aortic stenosis (AS) management is classically guided by symptoms and valvular metrics. However, the natural history of AS is dictated by coupling of the left ventricle, aortic valve, and vascular system. We investigated whether metrics of ventricular and vascular state add to the appreciation of AS state above valve gradient alone. Seventy patients with severe symptomatic AS were prospectively followed from baseline to 30 days after transcatheter aortic valve replacement (TAVR). Quality of life (QOL) was assessed using the Kansas City Cardiomyopathy Questionnaire. Left ventricular stroke work (SWLV) and vascular impedance...
Source: Science Translational Medicine - September 10, 2019 Category: Biomedical Science Authors: Ben-Assa, E., Brown, J., Keshavarz-Motamed, Z., de la Torre Hernandez, J. M., Leiden, B., Olender, M., Kallel, F., Palacios, I. F., Inglessis, I., Passeri, J. J., Shah, P. B., Elmariah, S., Leon, M. B., Edelman, E. R. Tags: Research Articles Source Type: research
Allometric versus ratiometric normalization of left ventricular stroke volume by Doppler-echocardiography for outcome prediction in severe aortic stenosis with preserved ejection fraction
Appropriate normalization methods to scale Doppler-derived stroke volume (SV) to body size in patients with aortic stenosis (AS) are poorly defined and reference values are lacking. We aim to establish reference values of normalized SV in adults, and to compare the prognostic value of SV normalized by different methods in AS patients.
Source: International Journal of Cardiology - October 8, 2019 Category: Cardiology Authors: Dan Rusinaru, Ernst R. Rietzschel, Yohann Bohbot, Marc L. De Buyzere, Otilia Buiciuc, Sylvestre Mar échaux, Thierry C. Gillebert, Christophe Tribouilloy Source Type: research
Flow, Reflected by Stroke Volume Index, Is a Risk Marker in High-Gradient Aortic Stenosis Patients Undergoing Transcatheter Aortic Valve Replacement
ConclusionsSVi can further characterize patients with HG-AS and may help to identify those who are at increased risk after TAVR.RésuméContexteDes outils sont nécessaires pour dépister les patients exposés à un risque accru à la suite d’un remplacement valvulaire aortique par cathéter (RVAC). Le volume systolique indexé (VSI) est une mesure échocardiographique utilisée dans les cas de sténose aortique à faible gradient. Nous avons vérifié si un faible VSI était un marqueur de risque accru chez les patients présentant une sténose aortique à gradient élevé et avons évalué comment la relation entre le ...
Source: Canadian Journal of Cardiology - December 24, 2019 Category: Cardiology Source Type: research
Impact of Stroke Volume Index and Left Ventricular Ejection Fraction on Mortality After Aortic Valve Replacement
To assess the impact of stroke volume index (SVI) and left ventricular ejection fraction (LVEF) on prognosis in patients with severe aortic stenosis, comparing those undergoing transcatheter aortic valve replacement (TAVR) and those with surgical AVR (SAVR).
Source: Mayo Clinic Proceedings - December 31, 2019 Category: Internal Medicine Authors: Saki Ito, Vuyisile T. Nkomo, David A. Orsinelli, Grace Lin, Joao Cavalcante, Jeffrey J. Popma, David H. Adams, Stanley J. Checuti, G. Michael Deeb, Michael Boulware, Jian Huang, Stephen H. Little, Sidney A. Cohen, Michael J. Reardon, Jae K. Oh Tags: Original article Source Type: research
Significant aortic stenosis associated with poorer functional outcomes in patients with acute ischaemic stroke undergoing endovascular therapy.
Authors: Ngiam NJ, Tan BY, Sia CH, Chan BP, Anil G, Cunli Y, Holmin S, Anderssen T, Poh KK, Yeo LL, Sharma VK
PMID: 32340516 [PubMed - as supplied by publisher]
Source: Interventional Neuroradiology - April 29, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research
Estimation of Stroke Volume and Aortic Valve Area in Patients with Aortic Stenosis: A Comparison of Echocardiography versus Cardiovascular Magnetic Resonance
In aortic stenosis, accurate measurement of left ventricular stroke volume (SV) is essential for the calculation of aortic valve area (AVA) and the assessment of flow status. Current American Society of Echocardiography and European Association of Cardiovascular Imaging guidelines suggest that measurements of left ventricular outflow tract diameter (LVOTd) at different levels (at the annulus vs 5 or 10 mm below) yield similar measures of SV and AVA. The aim of this study was to assess the effect of the location of LVOTd measurement on the accuracy of SV and AVA measured on transthoracic echocardiography (TTE) compared wi...
Source: Journal of the American Society of Echocardiography - June 20, 2020 Category: Cardiology Authors: Ezequiel Guzzetti, Romain Capoulade, Lionel Tastet, Julio Garcia, Florent Le Ven, Marie Arsenault, Elisabeth B édard, Eric Larose, Marie-Annick Clavel, Philippe Pibarot Source Type: research
Regarding “Estimation of Stroke Volume and Aortic Valve Area in Patients with Aortic Stenosis: A Comparison of Echocardiography versus Cardiovascular Magnetic Resonance”
With great interest, we enjoyed reading the article by Dr. Guzzetti et al.,1 who further demonstrated the methodological insights of measurement of left ventricular outflow tract (LVOT) diameters. The study showed that LVOT was not “rectangular” (as suggested by the guidelines).2 Different methods can significantly impact stroke volume (SV) calculation by Doppler echocardiography compared with cardiac magnetic resonance.
Source: Journal of the American Society of Echocardiography - September 8, 2020 Category: Cardiology Authors: Min Pu Tags: Letter to the Editor Source Type: research
Accuracy of stroke volume measurement with phase-contrast cardiovascular magnetic resonance in patients with aortic stenosis
Phase contrast (PC) cardiovascular magnetic resonance (CMR) in the ascending aorta (AAo) is widely used to calculate left ventricular (LV) stroke volume (SV). The accuracy of PC CMR may be altered by turbulent...
Source: Journal of Cardiovascular Magnetic Resonance - November 4, 2021 Category: Radiology Authors: Ezequiel Guzzetti, Hugo-Pierre Racine, Lionel Tastet, Myl ène Shen, Eric Larose, Marie-Annick Clavel, Philippe Pibarot and Jonathan Beaudoin Tags: Research Source Type: research
Meta-Analysis of 5-Year Risk of All-Cause Death or Stroke After Transcatheter Aortic Valve Implantation Versus Surgical Aortic Valve Replacement
Transcatheter aortic valve implantation (TAVI) is an established alternative to surgical aortic valve replacement (SAVR) for patients with severe symptomatic aortic stenosis.1,2 Its indication has expanded from high-risk to include a low surgical risk younger population. Although the short-term results of TAVI and SAVR in patients with intermediate or high surgical risk are similar,1,2 outcomes beyond short-term periods remain unclear. Recently, the results of 5-year follow-up of the Surgical Replacement and Transcatheter Aortic Valve Implantation (SURTAVI) trial has been reported, which showed a similar rate of the compos...
Source: The American Journal of Cardiology - January 3, 2022 Category: Cardiology Authors: Yujiro Yokoyama, Toshiki Kuno, Tomo Ando, Tadahisa Sugiura, Azeem Latib Source Type: research
