Results 81 to 90 of about 156,828 (341)

Image-based immersed boundary model of the aortic root [PDF]

arXiv, 2017
Each year, approximately 300,000 heart valve repair or replacement procedures are performed worldwide, including approximately 70,000 aortic valve replacement surgeries in the United States alone. This paper describes progress in constructing anatomically and physiologically realistic immersed boundary (IB) models of the dynamics of the aortic root and
arxiv  

Prosthetic valve replacement.

Acta medica portuguesa, 1980
PRÓTESES VALVULARES CARDÍACAS Parece extraordinário que após vinte anos de experiência de substituições valvulares este assunto ainda seja um dos que se discute nos congressos de Cirurgia Cardíaca. Sem dúvida isto deve-se ao facto de ainda se não ter encontrado o substituto valvular cardíaco ideal e, nos últimos anos, tem-se desenvolvido a tendência ...
openaire   +5 more sources

The Role of Silicon Technology in Organ‐On‐Chip: Current Status and Future Perspective

Advanced Materials Technologies, EarlyView.
This review explores the potential of silicon micro‐nanofabrication technologies in advancing organ‐on‐chip systems. The integration of actuation and sensing modalities, highlight emerging technologies is discussed for combining silicon‐based and polymer‐based components, and emphasize the need for robust, high‐throughput, and customizable organ‐on ...
Frøydis Sved Skottvoll, Enrique Escobedo‐Cousin, Michal Marek Mielnik   +2 more
wiley   +1 more source

3D Wiring Microelectrodes in a PMMA Microfluidic Device by Vacuum Filling Method

Advanced Materials Technologies, EarlyView.
This paper proposes a method for fabricating 3D wiring microelectrodes in arbitrary designs within 3D‐printed microfluidics. By attaching a PDMS lid and using vacuum filling, low‐melting‐point alloy (LMA) is introduced into microchannels. This enables the creation of 50 µm microelectrodes, including complex shapes.
Keisuke Sugahara, Shun Yasunaga, Minghao Nie, Yuya Morimoto, Shoji Takeuchi   +4 more
wiley   +1 more source

Beyond 3D: Smart Material Systems for Microscale 4D Printing

Advanced Materials Technologies, EarlyView.
Smart materials exhibit shape changes in response to their environment, enabling scientists to go beyond 3D in the rapidly growing field of 4D printing. This review covers recent advances, current challenges, and emerging trends in 4D printing on the microscale.
Daniel Maher, Marcin Piekarczyk, Babak Rezaei, Ada‐Ioana Bunea   +3 more
wiley   +1 more source

Transcatheter Aortic-Valve Replacement

New England Journal of Medicine, 2016
Dr. Santarpino reports receiving consulting fees from Sorin Group Italia; and Dr. Pfeiffer, consulting fees from LivaNova Group. No other potential conflict of interest relevant to this letter was reported.
Santarpino, G., Mariscalco, Giovanni, Pfeiffer, S.   +2 more
openaire   +9 more sources

Miniaturized Devices for On‐the‐Spot Generation of Small‐Diameter Vascular Grafts

Advanced Materials Technologies, EarlyView.
An intracorporeal extrusion device is developed for on‐the‐spot generation of vascular grafts with tunable diameters spanning from 1 to 6 mm. The device uses biomimetic polymers and light, to promptly obtaining biocompatible and high‐burst pressure‐resistant grafts.
Deyanira Hernandez‐Sanchez, Maxime‐Emmanuel Comtois‐Bona, Antony El‐Khoury, Sergio David Garcia Schejtman, Aidan Macadam, Juan‐David Figueroa‐Alegria, Jesus M. Calderon‐Torres, Irene Guzmán‐Soto, Marc Ruel, Erik J. Suuronen, Marcelo Muñoz, Emilio I. Alarcon   +11 more
wiley   +1 more source

Impact of frailty on outcomes and readmissions after transcatheter and surgical aortic valve replacement in a national cohortCentral MessagePerspective

JTCVS Open
Objective: We examined the effect of frailty on in-hospital mortality, readmission rates, and hospitalization costs after transcatheter and surgical aortic valve replacement in a population-level cohort.
Travis J. Miles, MD, Christopher T. Ryan, MD, Katie J. Hogan, PhD, Bhavesh S. Sayal, BS, Christopher B. Sylvester, MD, PhD, Todd K. Rosengart, MD, Joseph S. Coselli, MD, Marc R. Moon, MD, Ravi K. Ghanta, MD, Subhasis Chatterjee, MD   +9 more
doaj  

Comparative outcomes and risk analysis after cone repair or tricuspid valve replacement for Ebstein's anomalyCentral MessagePerspective

JTCVS Open, 2023
Objective: Ebstein's anomaly is a rare congenital heart malformation for which surgical and medical management are still controversial. The cone repair has transformed surgical outcomes in many of these patients.
Rebekah Boyd, MD, David Kalfa, MD, PhD, Stephanie Nguyen, MD, Matan Setton, MD, Amee Shah, MD, John Karamichalis, MD, Matthew Lewis, MD, Noa Zemer Wassercug, MD, Marlon Rosenbaum, MD, Emile Bacha, MD   +9 more
doaj  

Transvalvular mitral regurgitation following mitral valve replacement a diagnostic dilemma

Annals of Cardiac Anaesthesia, 2015
After mitral valve replacement with a prosthetic valve, the valve should be competent and there should not be any residual prosthetic valve regurgitation. Transvalvular residual prosthetic valve regurgitation are difficult to diagnose and quantify.
U S Dinesh Kumar, Umesh Nareppa, Shyam Prasad Shetty, Murugesh Wali   +3 more
doaj   +1 more source