Results 151 to 160 of about 120,376 (304)

From Stinespring dilation to Sz.-Nagy dilation on the symmetrized bidisc and operator models [PDF]

New York Journal of Mathematics, 20 (2014), 645-664, 2013
We provide an explicit normal distinguished boundary dilation to a pair of commuting operators $(S,P)$ having the closed symmetrized bidisc $\Gamma$ as a spectral set. This is called Sz.-Nagy dilation of $(S,P)$. The operator pair that dilates $(S,P)$ is obtained by an application of Stinespring dilation of $(S,P)$ given by Agler and Young.
arxiv  

Discovering new hub genes of dilated cardiomyopathy

ESC Heart Failure, EarlyView.
Abstract Aims Dilated cardiomyopathy (DCM) has a poor prognosis and exhibits a complex and diverse aetiology and genetic profile. The genes responsible for the pathogenesis of DCM have not been fully identified. The present study aimed to explore new hub genes of DCM by mining the human DCM databases and further by experimental validation.
Jun‐Yan Zhu, Yu Han, Jing‐Yu Yang, De‐Ping Wang, Li‐Juan Gao, Teng Sun, Yan‐Lin Feng, Zhong‐Mei He, Bin Zhou, Ji‐Min Cao   +9 more
wiley   +1 more source

Microaxial pump‐supported coronary surgery without CPB to optimize outcome in severely impaired left ventricles

ESC Heart Failure, EarlyView.
Abstract Aims Cardiopulmonary bypass (CPB) is the standard approach for coronary artery bypass grafting (CABG) in advanced ischaemic cardiomyopathy. Microaxial pump support has been envisioned to allow for beating‐heart CABG without CPB (MPCAB), thereby avoiding CPB‐inherent complications.
Anna Kathrin Assmann, Merve Arik‐Doganay, Sebastian Waßenberg, Payam Akhyari, Artur Lichtenberg, Alexander Assmann   +5 more
wiley   +1 more source

Layer-Specific Strain Analysis in Patients with Dilated Cardiomyopathy

Biomedicines
Background/Objectives: This study aimed to evaluate layer-specific strain according to etiology and assess whether subtle changes in longitudinal and circumferential layer strain are involved in predicting cardiac mortality during a two-year follow-up in
Despina-Manuela Toader, Alina Paraschiv, Georgică Târtea, Gabriela Tiucu, Mihai Chițu, Raluca Stănișor, Oana Mirea   +6 more
doaj   +1 more source

Left atrial to coronary sinus shunting in more advanced heart failure with preserved ejection fraction

ESC Heart Failure, EarlyView.
Abstract Aims Inter‐atrial shunt device therapy has shown mixed results in clinical trials, with clinical ‘non‐responders’ typically showing features of more advanced heart failure. We aimed to analyse the haemodynamic and clinical response of a novel left atrial to coronary sinus (LA‐CS) shunt device in patients with higher natriuretic peptide (NP ...
Ryan J. Tedford, Brian A. Houston, JoAnn Lindenfeld, Rami Kahwash, Marcus A. Urey, Nicholas S. Amoroso, Benjamin Hibbert, Firas Zahr, William A. Gray, Javed Butler   +9 more
wiley   +1 more source

Prognostic implications of functional tricuspid regurgitation in asymptomatic degenerative mitral regurgitation

ESC Heart Failure, EarlyView.
Abstract Aims Functional tricuspid regurgitation (FTR) associated with degenerative mitral regurgitation (DMR) accentuates the severity of heart failure and is a marker of poor prognosis. Little is known about FTR associated with asymptomatic DMR. Methods and results The study included 1249 asymptomatic patients with moderate or severe DMR from the ...
Christophe Tribouilloy, Yohann Bohbot, Benjamin Essayagh, Giovanni Benfari, Jeroen J. Bax, Thierry Le Tourneau, Yan Topilsky, Clemence Antoine, Dan Rusinaru, Francesco Grigioni, Nina Ajmone Marsan, Aniek van Wijngaarden, Aviram Hochstadt, Jean Christian Roussel, Prabin Thapa, Michelena Hector I, Maurice Enriquez‐Sarano   +16 more
wiley   +1 more source

Diagnosis and cardiac transplantation of a Carney syndrome-induced cardiac myxoma combined with dilated cardiomyopathy: a case report

BMC Cardiovascular Disorders
Background Carney syndrome is an uncommon autosomal disorder closely linked to mutations in the PRKAR1A gene. Skin lesions are the most pronounced feature of Carney syndrome, affecting over 80% of individuals with this condition.
Cheng Cheng, Yang Song, Haidong Yan, Daojun Bao, Xiaodi Zhang, Yi Zhao, Daxing Liu, Dengshen Zhang   +7 more
doaj   +1 more source

T1 mapping and major cardiovascular events in non‐ischaemic dilated cardiomyopathy: a systematic review and meta‐analysis

ESC Heart Failure, EarlyView.
In NIDCM patients, native T1 mapping and ECV were associated with increased risk of the composite primary endpoint of MACE and the secondary endpoint of heart failure and arrhythmic‐related events. Patients who experienced MACE had higher values of both T1 mapping and ECV.
Federico Marchini, Beatrice Dal Passo, Gianluca Campo, Elisabetta Tonet, Matteo Serenelli, Alberto Cossu, Serena Chiarello, Maria Lo Monaco, Erika Bertella, Rita Pavasini   +9 more
wiley   +1 more source

Prescription of guideline‐directed medical therapy in heart failure: impact on mortality and readmission

ESC Heart Failure, EarlyView.
Routine data analysis showing a better outcome regarding mortality and readmission in HF patients when being prescribed the current four‐drug treatment (vs. the outdated two‐drug therapy) 91–365 days after index hospital stay. Abstract Aims The 2021 European heart failure (HF) guidelines recommend the combination of four drugs as a standard therapy ...
Martin Möckel, Samipa Pudasaini, Kristina Feldmann, Henning Thomas Baberg, Benny Levenson, Jürgen Malzahn, Thomas Mansky, Guido Michels, Christian Günster, Elke Jeschke   +9 more
wiley   +1 more source

A Deep Learning-Driven Pipeline for Differentiating Hypertrophic Cardiomyopathy from Cardiac Amyloidosis Using 2D Multi-View Echocardiography [PDF]

arXiv
Hypertrophic cardiomyopathy (HCM) and cardiac amyloidosis (CA) are both heart conditions that can progress to heart failure if untreated. They exhibit similar echocardiographic characteristics, often leading to diagnostic challenges. This paper introduces a novel multi-view deep learning approach that utilizes 2D echocardiography for differentiating ...
arxiv