Results 61 to 70 of about 157,778 (393)

Artificial Nervous Systems

open access: yesAdvanced Science, EarlyView.
By drawing inspiration from biological neural hierarchies and the working mechanisms of plasticity, researchers have constructed a series of bionic devices, including sensory devices, synapse devices, and artificial neural systems. They committed to simulating and surpassing the biological information processing function, thereby realizing the ...
Lu Yang   +5 more
wiley   +1 more source

Echocardiographic navigation in transapical neochord mitral valve repair with significant mitral regurgitation

open access: yesВестник хирургии имени И.И. Грекова
INTRODUCTION. Significant mitral regurgitation is currently a widespread acquired valvular heart disease and is associated with a significant decrease in survival and deterioration in quality of life. One of the new, unclearly studied, minimally invasive
N. S. Titov   +3 more
doaj   +1 more source

Mitral valve repair by Double Teflon technique: cardiac remodeling analysis by tridimensional echocardiography [PDF]

open access: yes, 2010
INTRODUÇÃO: A plastia valvar mitral é o tratamento de escolha para a insuficiência mitral, porém a literatura é escassa em relação ao comportamento do átrio e ventrículo esquerdos após a plastia mitral sem utilização de anéis protéticos.
BRANDÃO, Carlos Manuel de Almeida   +7 more
core   +2 more sources

Noradrenergic and cholinergic innervation of the normal human heart and changes associated with cardiomyopathy

open access: yesThe Anatomical Record, EarlyView.
Abstract Autonomic nerves are crucial in cardiac function and pathology. However, data on the distribution of cholinergic and noradrenergic nerves in normal and pathologic human hearts is lacking. Nonfailing donor hearts were pressure‐perfusion fixed, imaged, and dissected. Left ventricular cardiomyopathy samples were also obtained.
Peter Hanna   +16 more
wiley   +1 more source

Percutaneous and minimally invasive approaches to mitral valve repair for severe mitral regurgitation-new devices and emerging outcomes

open access: yesAnnals of Cardiac Anaesthesia, 2015
Mitral valve disease is common in the United States and around the world, and if left untreated, increases cardiovascular morbidity and mortality. Mitral valve repair is technically more demanding than mitral valve replacement. Mitral valve repair should
Fadi E Shamoun   +4 more
doaj   +1 more source

Anticoagulation following mitral valve repair

open access: yesJournal of cardiac surgery, 2020
Anticoagulation after mitral valve repair is controversial and guidelines are not well‐established. This study evaluated the association between postoperative warfarin use and complications after mitral valve repair, including bleeding and thromboembolic
T. Watt   +8 more
semanticscholar   +1 more source

How rare is isolated rheumatic tricuspid valve disease? [PDF]

open access: yes, 2020
The incidence of rheumatic fever (RF) has markedly decreased in Europe since the beginning of the 20th century due to improved living conditions, early antibiotic therapy in streptococcal pharyngitis, and changes in serotypes of circulating streptococci.
Florescu, Cristina   +4 more
core   +2 more sources

Exploring spatial understanding and cognitive load using ultrasound in learning cardiac anatomy: A pilot study

open access: yesAnatomical Sciences Education, EarlyView.
Abstract Although ultrasound (US) appears to complement traditional anatomy teaching, limited objective data exist on its efficacy. Existing literature often relies on student perceptions rather than performance‐based outcomes. Additionally, the role of spatial understanding (SU)—the ability to mentally manipulate and interpret 3D anatomical ...
Johanna Maria de Lange   +3 more
wiley   +1 more source

Elevated Mitral Valve Pressure Gradient Is Predictive of Long‐Term Outcome After Percutaneous Edge‐to‐Edge Mitral Valve Repair in Patients With Degenerative Mitral Regurgitation (MR), But Not in Functional MR

open access: yesJournal of the American Heart Association : Cardiovascular and Cerebrovascular Disease, 2019
Background This study analyzed the effects on long‐term outcome of residual mitral regurgitation (MR) and mean mitral valve pressure gradient (MVPG) after percutaneous edge‐to‐edge mitral valve repair using the MitraClip system.
J. Patzelt   +17 more
semanticscholar   +1 more source

Degenerative mitral valve regurgitation: best practice revolution [PDF]

open access: yes, 2017
Degenerative mitral valve disease often leads to leaflet prolapse due to chordal elongation or rupture, and resulting in mitral valve regurgitation. Guideline referral for surgical intervention centres primarily on symptoms and ventricular dysfunction ...
Adams, David H.   +2 more
core  

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