Results 81 to 90 of about 92,781 (271)

Immersed boundary-finite element model of fluid-structure interaction in the aortic root [PDF]

, 2015
It has long been recognized that aortic root elasticity helps to ensure efficient aortic valve closure, but our understanding of the functional importance of the elasticity and geometry of the aortic root continues to evolve as increasingly detailed in vivo imaging data become available.
arxiv   +1 more source

Possible Subclinical Leaflet Thrombosis in Bioprosthetic Aortic Valves [PDF]

, 2016
To the Editor: Makkar et al. (Nov. 19 issue)(1) report possible subclinical leaflet thrombosis in up to 40% of patients involved in a clinical trial of transcatheter aortic-valve replacement (TAVR).
Burriesci, Gaetano, Colli, Andrea, Ducci, Andrea   +2 more
core   +2 more sources

A Six‐Step Approach for Optimizing Ultrasound‐Guided Femoral Artery Access

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Femoral arterial access is fundamental to interventional cardiology, especially for complex procedures that require large‐bore devices. However, vascular complications arising from suboptimal puncture techniques highlight the need for meticulous practice.
Fernando Luiz de Melo Bernardi, Guilherme Luiz de Melo Bernardi, Júlio Roberto Barbiero, Adalberto Gloeckner de Meira, Luiz Felipe Monsanto Fernandes Alves, Dinaldo Cavalcanti de Oliveira, Estevão Carvalho de Campos Martins   +6 more
wiley   +1 more source

Successful concomitant minimally invasive surgery for aortic valve stenosis and right lung cancer via right mini-thoracotomy : A case report

Journal of Cardiothoracic Surgery, 2022
Background The case of aortic valve stenosis complicated with lung cancer have compelled cardiovascular surgeons to make challenging. We report the first successful short-term outcomes of one-stage minimally invasive aortic valve replacement and video ...
Satoshi Sakakibara, Hiroyuki Nishi, Shinya Fukui, Mutsunori Kitahara, Kazuma Handa, Yumi Kakizawa, Takasumi Goto, Yasunobu Funakoshi   +7 more
doaj   +1 more source

Development of a patient-specific finite element model of the Transcatheter Aortic Valve Implantation (TAVI) procedure [PDF]

arXiv, 2019
This work reports on a study to develop a patient-specific finite element model of the Transcatheter Aortic Valve Implantation procedure, using a model of a balloon-expandable percutaneous prosthetic aortic valve as a framework for the prediction of its performance.
arxiv  

Long‐Term Follow‐Up After Direct‐Flow Transcatheter Aortic Valve Implantation: A Single Center Experience

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Aims Valve degeneration after DirectFlow implantation poses a challenge for valve‐in‐valve procedures due to its fragile polymeric structure and embolization risk. This study analyzes long‐term follow‐up of patients who underwent TAVI with DF to understand valve degeneration tendencies.
Dan M. Prunea, Raffael Geissler, Alexandru Achim, Cosima Stark, Sadeek S. Kanoun Schnur, Brigitte Strobl, Heiko Bugger, Olev Luha, Birgit Zirngast, Albrecht Schmidt, Andreas Zirlik, Gabor G. Toth   +11 more
wiley   +1 more source

Early Stroke Volume Variation After Transcatheter or Surgical Aortic Valve Replacement Predicts Clinical Outcomes in Low‐Flow Aortic Stenosis

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Little is known about stroke volume index (SVi) change and its prognostic implication in patients with low‐flow aortic stenosis (AS) undergoing aortic valve replacement (AVR) and conflicting results are present in literature. The aim of this study was to evaluate the postoperative change in SVi and its impact on outcomes in patients
Giorgio Fiore, Federico Biondi, Paola Cunsolo, Michele Morosato, Marco Gamardella, Giacomo Ingallina, Stefano Stella, Francesco Ancona, Annamaria Tavernese, Davide Margonato, Margherita Fabris, Alessandro Castiglioni, Matteo Montorfano, Francesco Maisano, Eustachio Agricola   +14 more
wiley   +1 more source

The first experience of implantation of the transcatheter aortal valve prosthesis “MedLab-KT”

Российский кардиологический журнал, 2018
Aim. Transcatheter aortic valve replacement in patients with high and extremely high risk has become a routine procedure in many cardiac surgery clinics. Until recently, there were no transcatheter prostheses produced within Russia. This article analyzes
A. V. Bogachev-­Prokofiev, R. M. Sharifulin, D. D. Zubarev, A. M. Karaskov   +3 more
doaj   +1 more source

Numerical investigation of the flow induced by a transcatheter intra-aortic entrainment pump [PDF]

Park Y. Numerical investigation of the flow induced by a transcatheter intra-aortic entrainment pump (2025)
This study evaluates the fluid dynamics inside and outside transcatheter blood pump positioned in the aorta. We focus on the pump's impact on blood component damage and arterial wall stress. CFD simulations were performed for rotational speeds ranging from 6000 to 15000 rpm, with a blood flow rate of 1.6 L/min.
arxiv   +1 more source

Outcomes Beyond 10 Years After Transcatheter Aortic Valve Implantation in High‐Risk Patients With Severe Aortic Valve Stenosis

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Limited data is available on long‐term outcomes and valve durability measures of transcatheter aortic valve implantation (TAVI). Aims This study sought to assess clinical and echocardiographic outcomes of high‐risk patients during the early experience of TAVI with a follow‐up period extending beyond 10 years.
Ellen Dietze, Ines Richter, Oliver Dumpies, Johannes Rotta detto Loria, Nicolas Majunke, Hans‐Josef Feistritzer, Philipp Kiefer, David Holzhey, Thilo Noack, Axel Linke, Norman Mangner, Steffen Desch, Michael Borger, Holger Thiele, Mohamed Abdel‐Wahab   +14 more
wiley   +1 more source