Results 91 to 100 of about 2,688,635 (294)

Transcatheter Aortic Valve Replacement on an Aortic Mechanical Valve

open access: yesJACC: Cardiovascular Interventions, 2018
A 71-year-old woman with a history of rheumatic heart valve disease and prior aortic and mitral mechanical valve replacement (Carbomedics #21 and #29, CarboMedics Inc., Austin, Texas, respectively), was referred for transcatheter closure of a mitral perivalvular leak due to New York ...
Dabit, Arzamendi   +5 more
openaire   +2 more sources

How is Nanoarchitectonics Shaping Extracellular Vesicle Research?

open access: yesAdvanced Healthcare Materials, EarlyView.
The convergence of nanoarchitectonics and extracellular vesicle biology is reshaping next‐generation nanomedicine by enabling rationally designed nanostructures for enhanced EVs detection, engineering, and therapy. ABSTRACT Extracellular vesicles (EVs) have gained recognition as crucial mediators of cell‐to‐cell communication, holding immense potential
Madushani Dahanayake   +5 more
wiley   +1 more source

Transcatheter aortic-valve replacement for inoperable severe aortic stenosis. [PDF]

open access: yes, 2012
BACKGROUND: Transcatheter aortic-valve replacement (TAVR) is the recommended therapy for patients with severe aortic stenosis who are not suitable candidates for surgery. The outcomes beyond 1 year in such patients are not known.
Makkar, Raj R   +26 more
core   +1 more source

Left Ventricular Thrombosed Pseudoaneurysm as a Delayed Complication of Myxoma Resection and Mitral Valve Replacement: A Unique Case Report

open access: yesResearch Reports in Clinical Cardiology, 2023
Mohamed Omar Hassan,1 Lütfi Öcal,1 Mohamud Mire Waberi,1 Abdijalil Abdullahi Ali,2 Nasra Mohamud Hilowle,3 Said Abdirahman Ahmed1 1Department of Cardiology, Mogadishu Somali Turkish Training and Research Hospital, Mogadishu, Somalia; 2Department of ...
Omar Hassan M   +5 more
doaj  

Azobenzene's Cross‐Scale Optics and Photonics: Molecular Photoswitching, Mesoscopic Material Motions, and Adaptive Devices

open access: yesAdvanced Materials, EarlyView.
Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son   +20 more
wiley   +1 more source

Severe Versus Mild–Moderate Pulmonary Hypertension: Outcomes Following Mechanical Mitral Valve Replacement with Posterior Leaflet Preservation

open access: yesSurgeries
Background: Pulmonary hypertension is common in left-sided heart valve disease, with historical studies reporting mortality rates up to 31% in severe cases undergoing mitral valve surgery.
Binh Thanh Tran   +7 more
doaj   +1 more source

Optimal Control Drives Ultrafast and Energy‐Efficient Magnetization Switching in Van der Waals Magnets

open access: yesAdvanced Materials, EarlyView.
ABSTRACT The accelerating expansion of data‐centric technologies is sharply increasing the energy burden of information storage, placing unprecedented pressure on the efficiency of magnetic switching. Conventional field‐driven reversal, once the foundation of magnetic memory, has become impractical in modern architectures due to its high energy cost ...
Mohammad H. Badarneh   +2 more
wiley   +1 more source

Why Is the Mechanism Underlying the Chiral‐Induced Selectivity Effect Still Challenging?

open access: yesAdvanced Materials, EarlyView.
The chiral‐induced spin selectivity (CISS) effect is observed in many experimental configurations and for different materials. However, there are theoretical challenges in attempting to explain those results. A qualitative framework for explaining all the results is presented.
Ron Naaman, Yossi Paltiel
wiley   +1 more source

Case Series on Prosthetic Valve Thromboses Treated with Intravenous Thrombolysis at a Tertiary Teaching Hospital in Nairobi – Kenya

open access: yesJournal of Kenya Association of Physicians
Valvular heart disease is a significant global health issue, particularly in developing countries where Rheumatic Heart Disease (RHD) is the leading cause.
John Otieno Odhiambo   +2 more
doaj   +1 more source

Navigating Lipid Nanostructure Design Space Through Continuous Microfluidic Automation

open access: yesAdvanced Materials, EarlyView.
LipidXplorer is a novel microfluidic platform which enables rapid navigation of lipid particle design space for high‐resolution phase mapping, lipid nanoparticle optimization, membrane biophysics, and functional nanomaterial discovery. It combines programmable composition control, continuous nanoparticle formation, and automated well‐plate collection ...
Bradley Diggines   +10 more
wiley   +1 more source

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