Results 111 to 120 of about 41,883 (252)

Transcatheter aortic valve implantation with the new-generation Evolut R™

International Journal of Cardiology: Heart & Vasculature, 2016
Background: The Medtronic Evolut R (EVR) is a novel transcatheter heart valve designed to allow precise implantation at the intended position and to minimize prosthesis dysfunction as well as procedural complications.
Eberhard Schulz, Alexander Jabs, Tommaso Gori, Stephan von Bardeleben, Ulrich Hink, Walter Kasper-König, Christian Friedrich Vahl, Thomas Münzel   +7 more
doaj   +1 more source

Ultrasound Assessment of Venous and Pulmonary Congestion in Left Ventricular Assist Devices Patients

Artificial Organs, EarlyView.
Renal venous stasis index (RVI) of Doppler renal ultrasound index is the peripheral vein ultrasound associated with high right atrial pressure, and right displacement of the interatrial septum is the echocardiographic parameter associated with high pulmonary wedge pressure.
Attilio Iacovoni, Cinzia Giaccherini, Sara Paris, Raffaele Abete, Claudia Vittori, Riccardo Maria Inciardi, Ottavio Zucchetti, Amedeo Terzi, Michele Senni   +8 more
wiley   +1 more source

The Influence of the Aortic Root Geometry on Flow Characteristics of a Bileaflet Mechanical Heart Valve [PDF]

arXiv, 2018
Bileaflet mechanical heart valves have one of the most successful valve designs for more than 30 years. These valves are often used for aortic valve replacement, where the geometry of the aortic root sinuses may vary due to valvular disease and affect valve performance. Common geometrical sinus changes may be due to valve stenosis and insufficiency. In
arxiv  

Association of Aortic Root and Valve Morphology With De Novo Aortic Valve Regurgitation After Implantation of Left Ventricular Assist Device

Artificial Organs, EarlyView.
Large preoperative aortic virtual basal ring diameter to geometric height ratio may be a novel risk factor for de novo aortic insufficiency after durable LVAD implantation and assist in determining surgical indications for concomitant aortic valve procedures with LVAD implantation.
Takashi Murakami, Yusuke Misumi, Daisuke Yoshioka, Takuji Kawamura, Ai Kawamura, Shin Yajima, Shunsuke Saito, Takashi Yamauchi, Shigeru Miyagawa   +8 more
wiley   +1 more source

[Prognostication of the outcome of heart valve prosthesis implantation by the method of nonlinear chaos dynamics of the heart rate].

Vestnik khirurgii imeni I. I. Grekova, 2001
An examination of 39 patients with heart diseases was performed before and after operations by the method of geometrical analysis of the nonlinear chaos (fractal) variability of the cardiac rhythm on the basis of the apparatus-programmed complex "Poly-spectrum". Five-minute-long registrations of ECG were carried on.
A P, Medvedev, A P, Gavrilushkin, S V, Kiselev, A V, Shelepnev, N A, Smirnov   +4 more
openaire   +1 more source

Vitamin D Deficiency and Driveline Infections in Patients With Left Ventricular Assist Devices

Artificial Organs, EarlyView.
Pre‐operative vitamin D deficiency was associated with a three‐fold increased risk of driveline infection in left ventricular assist device recipients. This potentially modifiable risk factor could be readily addressed through pre‐implant screening and supplementation, potentially reducing the burden of this common complication.
Wesley A. Borman, Luke M. Landrigan, Nicholas J. Berg, Jeanette Pickrell, Maya E. Guglin   +4 more
wiley   +1 more source

Impact of Frailty in Patients With Continuous‐Flow Left Ventricular Assist Device Therapy in End‐Stage Heart Failure: A Systematic Review and Meta‐Analysis

Artificial Organs, EarlyView.
Frailty significantly impacts clinical outcomes in LVAD recipients. This systematic review and meta‐analysis reveal that frail patients experience higher long‐term mortality but comparable short‐term mortality, hospital stay, and complication rates to non‐frail patients.
Christos Costa, Arian Arjomandi Rad, Yi Ting Yu, Nithiananthan Mayooran, Andrew Xanthopoulos, Marinos Koulouroudias, Robert Vardanyan, Gustavo Antonio Guida, Lydia Wilkinson, Jan Schmitto, Arjang Ruhparwar, Alina Zubarevich, Alexander Weymann, Peyman Sardari Nia, Antonios Kourliouros, Thanos Athanasiou   +15 more
wiley   +1 more source

Previously implanted mitral surgical prosthesis in patients undergoing transcatheter aortic valve implantation: Procedural outcome and morphologic assessment using multidetector computed tomography.

PLoS ONE, 2019
Transcatheter aortic valve implantation (TAVI) in the presence of a preexisting mitral prosthesis is challenging and its influence on the morphology of mitral prosthesis and the positioning of transcatheter heart valve (THV) is unknown.
Makoto Tanaka, Ryo Yanagisawa, Fumiaki Yashima, Takahide Arai, Masahiro Jinzaki, Hideyuki Shimizu, Keiichi Fukuda, Yusuke Watanabe, Toru Naganuma, Shinichi Shirai, Motoharu Araki, Norio Tada, Futoshi Yamanaka, Akihiro Higashimori, Kensuke Takagi, Hiroshi Ueno, Minoru Tabata, Kazuki Mizutani, Masanori Yamamoto, Kentaro Hayashida, OCEAN-TAVI investigators   +20 more
doaj   +1 more source

A novel mathematical technique to assess of the mitral valve dynamics based on echocardiography [PDF]

arXiv, 2015
Purpose: The mechanics of the mitral valve leaflet as a nonlinear, inelastic and anisotropic soft tissue results from an integrated response of many mathematical/physical indexes' that illustrate the tissue. In the past decade, finite element modeling of complete heart valves has greatly aided evaluation of heart valve surgery, design of bioprosthetic ...
arxiv  

Clinical Results for Cardiovascular Xenografts Treated With Novel Anticalcification Protocols

Artificial Organs, EarlyView.
This study demonstrates the safety, efficacy, and clinical performance of the tissue‐engineered Periborn bovine pericardial scaffold treated with our novel anticalcification protocols for surgical repair of a variety of cardiovascular diseases. The overall probability of freedom from Periborn‐related reoperation was 95.4% ± 3.2% at 9 years.
Hong‐Gook Lim, Chang Ha Lee, Jae Hong Lim, Eung Re Kim, Yong Jin Kim   +4 more
wiley   +1 more source