Results 121 to 130 of about 581,626 (194)

Hemodynamic Performance of a Self-Expanding Transcatheter Aortic Valve with an Intra-Annular Leaflet Position in Patients with a Small Aortic Annulus

Medicina
Background and Objectives: Transcatheter aortic valve implantation is associated with a higher risk for elevated trans-prosthetic gradients and prosthesis-patient mismatch in patients with a small aortic annulus.
Matjaž Bunc, Gregor Verček, Ole De Backer   +2 more
doaj   +1 more source

A Real‐Time Digital Twin for Human Cardiovascular Applications

International Journal for Numerical Methods in Biomedical Engineering, Volume 42, Issue 9, September 2026.
A real‐time digital twin was developed using the reduced‐order unscented Kalman filter (ROUKF) to estimate left ventricular contractility from synthetic and in vivo left ventricular pressure measurement data. The results were promising, with identifiable parameter estimates and a stable mathematical model, highlighting the potential for real‐time ...
S. C. Snijders, M. C. M. Rutten, J. E. M. Sels, W. A. L. Tonino, W. Huberts   +4 more
wiley   +1 more source

Transcatheter aortic valve implantation in 2015.

Journal of geriatric cardiology : JGC, 2016
Not ...
Mylotte, D., Sharif, F., PIAZZA, Nicolo', Moscarelli, M., FATTOUCH, Khalil, Modine, T.   +5 more
openaire   +3 more sources

Transcatheter aortic valve-in-valve implantation for failed aortic bioprosthesis

Revista Portuguesa de Cardiologia (English Edition), 2012
Percutaneous valve replacement for severe aortic stenosis has been shown to be an alternative treatment option for high surgical risk patients. We describe our first valve-in-valve procedure in a patient with a degenerated aortic bioprosthesis and severe regurgitation.
Olga, Sousa, Eulália, Pereira, Daniel, Caeiro, José, Ribeiro, João, Primo, Pedro, Braga, Luís, Vouga, Vasco, Gama   +7 more
openaire   +2 more sources

First-In-Human Experience of the New Fully Repositionable IMPERIA Delivery System to Implant the ALLEGRA Transcatheter Heart Valve in Patients With Severe Calcific Aortic Stenosis or Degenerated Surgical Bioprosthesis: Thirty-Day Results of the EMPIRE I Study

Structural Heart
Background: The ALLEGRA (Biosensors International) transcatheter heart valve is a self-expanding supra-annular bovine pericardial aortic valve. A new delivery system (IMPERIA™, Biosensors International) has been designed which allows the valve to be ...
José Antonio Baz, MD, Christof Burgdorf, MD, Christian Frerker, MD, Ignacio Cruz González, MD, Joan Antoni Gômez, MD, Joseph Graham, MD, José Maria Hernândez, MD, Pilar Jimenez, MD, Claire B. Ren, MD, Ernest Spitzer, MD, Pim Tonino, MD, Pieter Vriesendorp, MD, Nicolas van Mieghem, MD, Samuel Copt, PhD, Anders Jönsson, MD, Keith G. Oldroyd, MD, Nicolas Doll, MD   +16 more
doaj   +1 more source

Numerical Aspects of Turbulent Blood Flow in Aorta: A Systematic Review

Engineering Reports, Volume 8, Issue 9, September 2026.
The aim of this systematic review is to systematize the methodological approaches used in the state‐of‐the‐art literature, including the choice of turbulence models, validation methods, as well as the identification of the main hemodynamic parameters characterizing turbulent flow.
Nikita Skripka, Alex G. Kuchumov
wiley   +1 more source

Sonographic Diagnosis of an Intercostal Artery Pseudoaneurysm: A Case Report and Literature Review

Journal of Clinical Ultrasound, Volume 54, Issue 7, Page 1729-1735, September 2026.
A 63‐year‐old male presented to the emergency department after being found unconscious during a welfare check. Following a prolonged three‐month hospital admission, the patient developed left flank pain. Spectral Doppler ultrasound revealed a large isoechoic lesion with layering echoes, and spectral Doppler demonstrated bidirectional flow.
Aaditya P. Singh, Peter R. Coombs
wiley   +1 more source

Transcatheter Aortic Valve Implantation (TAVI): Is it Time for This Intervention to be Applied in a Lower Risk Population?

, 2014
Patients with severe aortic stenosis are sometimes not candidates for conventional open heart surgery because of severe deconditioning, excessive risk factors, and multiple comorbidities.
Ioannis M. Panayiotides, Loannis M. Panayiotides, Evagoras Nikolaides   +2 more
core   +1 more source

Patent Foramen Ovale: Epidemiology, Risk Factors, Pathophysiology, Clinical Features, Diagnosis, and Management

MedComm, Volume 7, Issue 9, September 2026.
The clinical manifestations of PFO. Although the majority of PFOs are benign and asymptomatic, they can present with a variety of clinical manifestations, or coexisting with other diseases and aggravating their symptoms, including cerebral diseases (such as CS, epilepsy, TIA, or migraine), systemic embolism (such as embolism in renal artery, coronary ...
Linlin Meng, Xiaotong Zhang, Guangrui Sun, Honggang Dai, Xiao Meng, Cheng Zhang, Yun Zhang   +6 more
wiley   +1 more source

Transcatheter aortic valve implantation (TAVI): current indications and future scenarios

, 2018
Th e introduction of transcatheter aortic valve implantation (TAVI) has represented a major breakthrough in the management of patients with symptomatic severe aortic valve stenosis.
Antonio Giulio Bruno, Tullio Palmerini
core   +1 more source