Results 71 to 80 of about 85,096 (348)

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   +15 more
wiley   +1 more source

A heart in a heart: a case report of spontaneous flail of bicuspid aortic valve

open access: yesJournal of Medical Case Reports, 2021
Background Aortic regurgitation is attributed to congenital and acquired abnormalities of the aortic valve or aortic valve supporting structures. The most common cause of aortic regurgitation is atherosclerotic degeneration of the valve, especially in ...
Khadije Mohammadi   +2 more
doaj   +1 more source

Triple valve infective endocarditis - a late diagnosis [PDF]

open access: yes, 2018
Behcet\u27s disease is a systemic vasculitis of unknown aetiology with cardiac involvement as well as damage to other organs. Whether the sterile valvular inflammation which occurs in this autoimmune disease predisposes to bacterial adhesion and ...
Barbulescu, Andreea L.   +10 more
core   +3 more sources

A comprehensive mathematical model for cardiac perfusion [PDF]

open access: yesarXiv, 2023
We present a novel mathematical model that simulates myocardial blood perfusion by embedding multiscale and multiphysics features. Our model incorporates cardiac electrophysiology, active and passive mechanics, hemodynamics, reduced valve modeling, and a multicompartment Darcy model of perfusion.
arxiv  

Anticoagulation intensity and outcomes among southeast‐Asians with moderate‐to‐severe mitral valve stenosis

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Objective To determine the optimal anticoagulation intensity of warfarin in a South‐East Asian population with moderate‐to‐severe rheumatic mitral stenosis. Methods A multicentre, retrospective study examined patients with rheumatic mitral stenosis who had not undergone valve replacement or repair and required long‐term warfarin therapy at two ...
Punyawee Puchsaka   +6 more
wiley   +1 more source

Retrograde transcatheter aortic valve closure in an infant with failing Norwood stage I palliation: a case report

open access: yesJournal of Medical Case Reports, 2019
Background Aortic valve regurgitation leading to coronary steal phenomenon can severely impair cardiac function in hypoplastic left heart syndrome, thus worsening long-term outcome.
Hannah E. Fürniss   +5 more
doaj   +1 more source

Severe aortic regurgitation due to endocarditis in a horse [PDF]

open access: yes, 2011
A 4-year-old Belgian Warmblood mare was presented because of fever, exercise intolerance, a loud diastolic cardiac murmur and a remarkable bounding pulsation that was palpable all over the body.
Afonso, Tiago   +4 more
core  

Patient-specific image-based computer simulation for theprediction of valve morphology and calcium displacement after TAVI with the Medtronic CoreValve and the Edwards SAPIEN valve [PDF]

open access: yes, 2016
AIMS: Our aim was to validate patient-specific software integrating baseline anatomy and biomechanical properties of both the aortic root and valve for the prediction of valve morphology and aortic leaflet calcium displacement after TAVI.
Bosmans, B   +18 more
core   +1 more source

Non-invasive estimation of left ventricle elastance using a multi-compartment lumped parameter model and gradient-based optimization with forward-mode automatic differentiation [PDF]

open access: yesarXiv, 2022
Accurate estimates of left ventricle elastances based on non-invasive measurements are required for clinical decision-making during treatment of valvular diseases. The present study proposes a parameter discovery approach based on a lumped parameter model of the cardiovascular system in conjunction with optimization and non-invasive, clinical input ...
arxiv  

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