Results 131 to 140 of about 2,852,884 (391)

Hemodynamic and thrombogenic analysis of a trileaflet polymeric valve using a fluid-structure interaction approach [PDF]

, 2015
Surgical valve replacement in patients with severe calcific aortic valve disease using either bioprosthetic or mechanical heart valves is still limited by structural valve deterioration for the former and thrombosis risk mandating anticoagulant therapy ...
Bluestein, Danny, Claiborne, Thomas E., Marom, Gil, Piatti, Filippo, Redaelli, Alberto, Sheriff, Jawaad, Slepian, Marvin J., Sturla, Francesco   +7 more
core   +1 more source

Future of heart valve surgery [PDF]

European Journal of Cardio-Thoracic Surgery Supplements, 2004
In highly developed nations, valve surgery will be increasing applied in older people, with more co-morbidities and a higher incidence of concomitant coronary artery disease. Valve surgeons will be facing increased competition from the catheter-based procedures, both for valve repair and replacement; these are already applied clinically, and their ...
openaire   +6 more sources

Nanostructured 316L Stainless Steel Stent Surfaces Improve Corrosion Resistance, and Enhance Endothelization and Hemocompatibility

Advanced Materials Interfaces, EarlyView.
This study investigates the impact of nanostructured surface modification on corrosion resistance, HUVEC functions, and platelet interactions of 316L SS for cardiovascular stents. Nanostructured surfaces enhanced HUVEC proliferation, migration, and angiogenesis‐related gene expression while reducing platelet adhesion and hemolysis.
Yasar Kemal Erdogan, Pelin Mutlu, Batur Ercan   +2 more
wiley   +1 more source

A Review on Reactor Design and Surface Modification of Atomic Layer Deposition for Functional Nanoparticles

Advanced Materials Interfaces, EarlyView.
In this review, the fundamentals, main challenges, and reactor configurations spanning temporal atomic layer deposition (ALD) to spatial ALD have been systematically reviewed. Furthermore, applications of surface modification using particle ALD in the fields of energy, catalysis, luminescence, and human health are introduced. This review aims to assist
Guanghui Yan, Gaoshan Huang, Jianjun Shi, Yi Ouyang, Xueqin Zuo, Zhihao Bao, Yongfeng Mei   +6 more
wiley   +1 more source

Design and development of a large diameter high pressure fast acting propulsion valve and valve actuator [PDF]

The design and development of a large diameter high pressure quick acting propulsion valve and valve actuator is described. The valve is the heart of a major test facility dedicated to conducting full scale performance tests of aircraft landing systems ...
Srinivasan, K. V.
core   +1 more source

Generic, simple risk stratification model for heart valve surgery [PDF]

, 2005
BACKGROUND: Heart valve surgery has an associated in-hospital mortality rate of 4% to 8%. This study aims to develop a simple risk model to predict the risk of in-hospital mortality for patients undergoing heart valve surgery to provide information to ...
Ambler, G, Keogh, BE, Kinsman, R, Omar, RZ, Royston, P, Taylor, KM   +5 more
core  

Fluid-structure interaction simulation of prosthetic aortic valves : comparison between immersed boundary and arbitrary Lagrangian-Eulerian techniques for the mesh representation [PDF]

, 2016
In recent years the role of FSI (fluid-structure interaction) simulations in the analysis of the fluid-mechanics of heart valves is becoming more and more important, being able to capture the interaction between the blood and both the surrounding ...
AJ Gravel, Alessandra M. Bavo, AM Bavo, BE Griffith, BF Stewart, CS Peskin, CT Otto, F Bakhtiary, F Sturla, Francesco Iannaccone, G Marom, GA Holzapfel, Giorgia Rocatello, H Kim, H Mohammadi, H Reul, I Borazjani, Iman Borazjani, J De Hart, J De Hart, J Degroote, JA Stella, Jan Vierendeels, Joris Degroote, KD Lau, KS Kunzelman, L Ge, L Taelman, M Astorino, ND Dos Santos, P Kleine, P Segers, Patrick Segers, PN Jermihov, R Gnyaneshwar, R Lohner, R Van Loon, RG Leyh, S Annerel, S Chandra, S Nobari, W Wu   +41 more
core   +4 more sources

Heart Valve Biomechanics and Underlying Mechanobiology.

Comprehensive Physiology, 2016
Heart valves control unidirectional blood flow within the heart during the cardiac cycle. They have a remarkable ability to withstand the demanding mechanical environment of the heart, achieving lifetime durability by processes involving the ongoing ...
Salma Ayoub, G. Ferrari, R. Gorman, J. Gorman, F. Schoen, M. Sacks   +5 more
semanticscholar   +1 more source

Soft Electromagnetic Actuator and Oscillator

Advanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
This work presents a groundbreaking soft electromagnetic system capable of bistable actuation and self‐regulated oscillation. Using liquid metal and silicone as a compliant conductor, the actuator enables force generation, sensing, and feedback with minimal power.
Noah D. Kohls, Yi Chen Mazumdar
wiley   +1 more source

A simplified approach to managing a complex infected left ventricular pseudoaneurysm

Journal of Cardiothoracic Surgery
Background Left ventricular pseudoaneurysm (LVP) is a rare but life-threatening condition resulting from acute myocardial infarction, trauma, bacterial infection, or previous cardiac operations. Diagnosis can be challenging as LVPs remain asymptomatic or
Sepideh Banar, Yaser Tolouietabar, Mohammad Amin Shojaei, Hamideh Khesali, Hamidreza Pouraliakbar, Saeid Hosseini   +5 more
doaj   +1 more source