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| http://dx.doi.org/10.14744/AnatolJCardiol.2022.2498 | DOI Listing |
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Impact of arteriovenous fistula on flow states in the evaluation of aortic stenosis among ESKD patients on dialysis.
Echocardiography
January 2024
Division of Biostatistics, Hennepin Healthcare, Minneapolis, Minnesota, USA.
Introduction: An arteriovenous fistula (AVF) in patients with end-stage kidney disease (ESKD) can influence flow states. We sought to evaluate if assessment of aortic stenosis (AS) by transthoracic echocardiographic (TTE) differs in the presence of AVF compared to other dialysis accesses in patients on dialysis.
Methods: We identified consecutive ESKD patients on dialysis and concomitant AS from a single center between January 2000 and March 2021.
First description and validation of a new method for estimating aortic stenosis burden and predicting the functional response to TAVI.
Front Cardiovasc Med
November 2023
Cardiology Division, Hospital Universitario Marques de Valdecilla, IDIVAL, Santander, Spain.
Article Synopsis
- - Patients undergoing transcatheter aortic valve implantation (TAVI) often face poor quality of life, with up to 20% not surviving beyond a year afterward; a new predictive method aims to improve patient outcomes.
- - The study involved 102 TAVI patients, with 80.4% showing significant functional improvement after 6 months, and those patients experienced much lower 2-year mortality rates (9% compared to 44%).
- - The new flow velocity-pressure analysis proved to be a better predictor of improvement than traditional methods, especially for those with low-gradient aortic stenosis, with a C-statistic showing good accuracy in both the main study and validation cohort.
Outcomes of Transcatheter Aortic Valve Replacement Patients With Different Transvalvular Flow-Gradient Patterns.
Am J Cardiol
December 2023
Centro Cardiologico Monzino Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy.
Low-flow low-gradient (LF-LG) aortic stenosis (AS) may occur with preserved or depressed left ventricular ejection fraction (LVEF). Both situations represent the most challenging subset of patients to manage and generally have a poor prognosis. Few and controversial data exist on the outcomes of these patients compared with normal flow-high gradient (NF-HG) AS after transcatheter aortic valve replacement (TAVR).
View Article and Find Full Text PDFExploring the mechanisms responsible for reduced systolic function in high-gradient aortic stenosis.
Heart
November 2023
Division of Cardiology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Stellenbosch, Cape Town, South Africa.
Objective: To characterise the mechanics responsible for the reduced ejection fraction (rEF) in high-gradient severe aortic stenosis (AS).
Methods: 21 patients with high-gradient severe AS (aortic valve area (AVA) <1.0 cm and mean gradient (MG) >40 mm Hg) were included.
Transcatheter Aortic Valve Replacement Prognostication with Augmented Mean Arterial Pressure.
J Cardiovasc Dev Dis
April 2023
Department of Cardiovascular Diseases, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA.
Background: Post-transcatheter aortic valve replacement (TAVR) patient outcome is an important research topic. To accurately assess post-TAVR mortality, we examined a family of new echo parameters (augmented systolic blood pressure (AugSBP) and arterial mean pressure (AugMAP)) derived from blood pressure and aortic valve gradients.
Methods: Patients in the Mayo Clinic National Cardiovascular Diseases Registry-TAVR database who underwent TAVR between 1 January 2012 and 30 June 2017 were identified to retrieve baseline clinical, echocardiographic and mortality data.
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