Results 81 to 90 of about 435,399 (363)

Collagen birefringence assessment in heart chordae tendineae through PS-OCT [PDF]

, 2017
Degenerative mitral regurgitation is a serious and frequent human heart valve disease. Malfunctioning of this valve brings the left-sided heart through a significant increase of pressure and volume overload.
Calvo Díez, Marta, Conde Portilla, Olga María, González Vargas, Nieves, López Higuera, José Miguel, Pontón Cortina, Alejandro, Real Peña, Eusebio, Revuelta Soba, José Manuel   +6 more
core   +1 more source

Chiral Nanohoops as an Efficient Spin Polarization System

Advanced Functional Materials, EarlyView.
Chiral conjugated nanohoops with a central dibenzopentalene unit exhibit 90% spin polarization at low voltage and high conductivity. These properties make them ideal components in molecular spintronics applications. Abstract A central challenge in molecular spintronics is to achieve a high spin polarization at low operating voltages and ambient ...
Anu Gupta, Philipp Seitz, Mathias Hermann, Birgit Esser, Ron Naaman   +4 more
wiley   +1 more source

Outcomes of COMBO therapy for severe mitral regurgitation compared with transcatheter edge-to-edge repair

Frontiers in Cardiovascular Medicine
BackgroundThere are different types of transcatheter mitral valve repair (TMVr) currently in clinical use, including leaflet approximation, annular cinching, and restoration of the chordal apparatus of the mitral valve (MV).
Hiroaki Yokoyama, Hiroaki Yokoyama, Tobias Friedrich Ruf, Theresa Ann Maria Gößler, Martin Geyer, Julia Zirbs, Ben Luca Schwidtal, Thomas Münzel, Ralph Stephan von Bardeleben   +8 more
doaj   +1 more source

Rotational Atherectomy and Mechanical Support to Treat Left Main

JACC: Case Reports, 2019
We describe a complex percutaneous coronary intervention using rotational atherectomy (Rotablator, Boston Scientific, Marlborough, Massachusetts) and mechanical circulatory support (Impella, Abiomed, Danvers, Massachusetts) in a patient with multiple ...
Luis Augusto Palma Dallan, MD, Marcelo Harada Ribeiro, MD, Chinedu Igwe, MD, Gabriel Tensol Pereira Rodrigues, MD, Elder Iarossi Zago, MD, Vladislav Zimin, MD, PhD, Armando Vergara-Martel, MS, Marco Costa, MD, PhD, Guilherme Ferragut Attizzani, MD, Mehdi Shishehbor, DO, MPH, PhD, Hiram Grando Bezerra, MD, PhD   +10 more
doaj   +1 more source

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

Apixaban use in an atrial fibrillation patient with double mechanical heart valves: a case report [PDF]

, 2021
Jae Young Eom, Je Kyoun Shin, Chang Hee Kwon   +2 more
openalex   +1 more source

A Novel Sprayable Fibrinogen/Glycosaminoglycans/Collagen‐Based Bioink for Skin Wound Healing Applied by a Handheld Dual‐Head Airbrush

Advanced Healthcare Materials, EarlyView.
A dual‐head airbrush‐based spraying device, combined with a fibrinogen bioink enriched with glycosaminoglycans and collagen, enables the delivery of biomaterials and cells to promote wound healing. This system demonstrates effective skin regeneration in vitro and in vivo, with comparable results to autografts.
Paula Pleguezuelos‐Beltrán, Daniel Nieto‐García, Carlos Chocarro‐Wrona, Juan de Vicente, Patricia Gálvez‐Martín, José Manuel Entrena, Elena López‐Ruiz, Juan Antonio Marchal   +7 more
wiley   +1 more source

Cell Calcification Models and Their Implications for Medicine and Biomaterial Research

Advanced Healthcare Materials, EarlyView.
Calcification, is the process by which the tissues containing minerals are formed, occurring during normal physiological processes, or in pathological conditions. Here, it is aimed to give a comprehensive overview of the range of cell models available, and the approaches taken by these models, highlighting when and how methodological divergences arise,
Luke Hunter, Caterina Vanelli Coralli, Robert Dzhanaev, Aaron Morgan, Willi Jahnen‐Dechent, Sergio Bertazzo   +5 more
wiley   +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  

Optimization of the Nonclinical Biological Evaluation of Medical Devices Using Toxicologic Pathology Best Practices

Advanced Healthcare Materials, EarlyView.
Nonclinical evaluation of biological responses to implanted medical devices and combination products in animals is required to predict possible outcomes and risks in patients. This paper describes globally accepted pathology “best practices” that 1) effectively address ISO standards and current regulatory guidance for medical device development and 2 ...
Kathleen A. Funk, JoAnn C. L. Schuh, Brad Bolon, Valerie S. Thomas, Jeffrey I. Everitt, Abraham Nyska, Jaime Paulin   +6 more
wiley   +1 more source