Results 41 to 50 of about 4,510 (231)

Computational fluid dynamics modelling of left valvular heart diseases during atrial fibrillation [PDF]

open access: yesPeerJ, 4: e2240, 2016, 2016
Although atrial fibrillation (AF), a common arrhythmia, frequently presents in patients with underlying valvular disease, its hemodynamic contributions are not fully understood. The present work aimed to computationally study how physical conditions imposed by pathologic valvular anatomy act on AF hemodynamics.
arxiv   +1 more source

Anesthetic considerations in supravalvular aortic stenosis: A case series

open access: yesAsian Journal of Medical Sciences, 2023
Supravalvular aortic stenosis (SVAS), characterized by elastin arteriopathy, presents either as a localized narrowing at the sinotubular junction or as a diffuse form with additional involvement of the ascending aorta, aortic arch, and its branches ...
Virendra Kumar   +3 more
doaj   +1 more source

Echocardiographic Morphological Classification of Aortic Stenosis in Sulaimani Pediatric Teaching Hospital/Kurdistan/Iraq

open access: yesKurdistan Journal of Applied Research, 2017
Aortic stenosis occurs when the heart's aortic valve narrows. This narrowing prevents the valve from opening fully, which obstructs blood flow from the heart into the aorta and onward to the rest of the body.
Aso Faeq Salih
doaj   +1 more source

Simulation-Based Design of Bicuspidization of the Aortic Valve [PDF]

open access: yesarXiv, 2023
Objective: Severe congenital aortic valve pathology in the growing patient remains a challenging clinical scenario. Bicuspidization of the diseased aortic valve has proven to be a promising repair technique with acceptable durability. However, most understanding of the procedure is empirical and retrospective.
arxiv  

Iatrogenic Supravalvular Aortic Stenosis [PDF]

open access: yesAORTA, 2016
AbstractWe describe a case of hemolytic anemia and proximal anastomotic site stenosis following emergency repair of a Type A aortic dissection. This rare complication led to a reoperation to correct the iatrogenic aortic stenosis and cure the consequent hemolysis.
Paolo Bosco   +2 more
openaire   +2 more sources

Diffuse hypoplasia of the aortic arch and isthmus in a patient with Williams syndrome

open access: yesTürk Kardiyoloji Derneği Arşivi, 2017
Williams syndrome is a rare neurodevelopmental disorder characterized by mental retardation, growth deficiency, hypercalcemia, cardiac defects, and a distinctive facial appearance.
İsmihan Selen Onan   +4 more
doaj   +1 more source

A deep learning approach to using wearable seismocardiography (SCG) for diagnosing aortic valve stenosis and predicting aortic hemodynamics obtained by 4D flow MRI [PDF]

open access: yesarXiv, 2023
In this paper, we explored the use of deep learning for the prediction of aortic flow metrics obtained using 4D flow MRI using wearable seismocardiography (SCG) devices. 4D flow MRI provides a comprehensive assessment of cardiovascular hemodynamics, but it is costly and time-consuming.
arxiv  

Factors influencing early and late outcome of the arterial switch operation for transposition of the great arteries [PDF]

open access: yes, 1995
Between January 1983 and January 1992, 470 patients underwent an arterial switch operation at our institution. An intact (or virtually intact) ventricular septum was present in 278 of 470 (59%); a ventricular septal defect was closed in the remaining 192.
Blackstone, Eugene H.   +6 more
core   +1 more source

Wall shear stress and pressure patterns in aortic stenosis patients with and without aortic dilation captured by high-performance image-based computational fluid dynamics [PDF]

open access: yesarXiv, 2022
Spatial patterns of elevated wall shear stress and pressure due to blood flow past aortic stenosis (AS) are studied using GPU-accelerated patient-specific computational fluid dynamics. Three cases of moderate AS, one with a dilated ascending aorta and two within the normal range (root diameter less than 4cm) are simulated for physiological beat cycle ...
arxiv  

Follow-up study of morphology and cardiac function in rats undergoing induction of supravalvular aortic stenosis [PDF]

open access: yesArquivos Brasileiros de Cardiologia, 2003
OBJECTIVE: To characterize the follow-up of an experimental model of left ventricular hypertrophy (LVH) induced by supravalvular ascending aortic stenosis in young rats.
Henrique Barbosa Ribeiro   +8 more
doaj   +3 more sources

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