Results 71 to 80 of about 406,657 (306)

Cor Triatriatum in the Adult with Aortic Stenosis and Mitral Stenosis [PDF]

open access: yes, 2018
Background:Cor triatriatum is a rare congenital cardiac anomaly, in which the left atrium or right atrium is separated by an abnormal fibromuscular membrane with one or more restrictive orifices.
Fukuda, Hirotsugu   +7 more
core  

Supravalvular Aortic Stenosis [PDF]

open access: yesCirculation, 1958
A case of supravalvular aortic stenosis is described. The diagnosis was suspected from pressure curves obtained at retrograde catheterization of the left ventricle. At operation a circular narrowing of the aorta 2 cm. above the valvular ring was seen. No attempt at surgical correction was made; the patient died at the end of the operation.
J J, DENIE, A P, VERHEUGT
openaire   +2 more sources

Thermally Drawn Bioelectric Catheters: Enabling Proprioceptive Endovascular Navigation

open access: yesAdvanced Intelligent Systems, EarlyView.
This work introduces a novel bioelectric navigation system eliminates the need for harmful fluoroscopy during endovascular surgeries. A bespoke 16‐electrode catheter is fabricated using rapid thermal drawing and laser micro‐machining. Paired with a real‐time tracking algorithm fusing vascular geometry detection and distance estimation, this technology ...
Alex Ranne   +8 more
wiley   +1 more source

Williams-Beuren syndrome: cardiovascular abnormalities in 20 patients diagnosed with fluorescence in situ hybridization

open access: yesArquivos Brasileiros de Cardiologia, 2003
OBJECTIVE: To evaluate the cardiovascular findings and clinical follow-up of patients with Williams-Beuren syndrome. METHODS: We studied 20 patients (11 males, mean age at diagnosis: 5.9 years old), assessed for cardiovascular abnormalities with ...
Sofia Mizuho Miura Sugayama   +8 more
doaj   +1 more source

Myocardial extracellular volume quantification by computed tomography predicts outcomes in patients with severe aortic stenosis.

open access: yesPLoS ONE, 2021
BackgroundThe extent of myocardial fibrosis in patients with severe aortic stenosis might have an important prognostic value. Non-invasive imaging to quantify myocardial fibrosis by measuring extracellular volume fraction might have an important clinical
Yoav Hammer   +13 more
doaj   +1 more source

Misconceptions and Facts About Aortic Stenosis. [PDF]

open access: yes, 2017
Aortic stenosis is the most common valvular heart disease leading to intervention, and it is typically a disease of the elderly. Recent clinical advances have expanded the role of transcatheter aortic valve intervention in patients with severe aortic ...
Windecker, Stephan   +2 more
core   +1 more source

Mechanisms of aortic stenosis [PDF]

open access: yesJournal of Cardiology, 2018
The pathobiology of degenerative aortic valve stenosis (AS) is complex and involves multiple features such as fibrosis, inflammation, oxidative stress, angiogenesis, hemorrhage, and osteogenic differentiation. We summarize the mechanism of valve calcification and angiogenesis which is necessary for calcifying processes.
Hirokuni, Akahori   +3 more
openaire   +2 more sources

Heterozygous Variants in LRP1 Cause a Neurodevelopmental Disorder With Congenital Heart Defects

open access: yesAmerican Journal of Medical Genetics Part A, EarlyView.
ABSTRACT LRP1 encodes the low‐density lipoprotein (LDL) receptor‐related protein 1 (LRP1), a transmembrane protein involved in endocytosis and activation of multiple signaling pathways. LRP1 variants have been implicated in the pathogenesis of congenital heart defects (CHD), Alzheimer's disease, and neurodevelopmental disorders (NDD).
Alyssa L. Rippert   +31 more
wiley   +1 more source

Systematic Cardiac Phenotyping of Patients With Copy Number Variants in the 15q11.2 Breakpoint 1 to Breakpoint 2 Region: A Retrospective Cohort Study From Nine Pediatric Cardiac Centers

open access: yesAmerican Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Microdeletions impacting 15q11.2 breakpoint (BP) 1 to BP2, adjacent to the Prader–Willi critical region, have previously described neuropsychiatric associations, with potential low penetrance presentations of congenital heart disease (CHD) also identified.
Morgan B. Wright   +10 more
wiley   +1 more source

Imaging techniques in transcatheter aortic valve replacement

open access: yesResearch Reports in Clinical Cardiology, 2013
Robert A Quaife, Jennifer Dorosz, John C Messenger, Ernesto E Salcedo Division of Cardiology, University of Colorado, Aurora, CO, USA Abstract: Calcific aortic stenosis is now understood as a complex valvular degenerative process sharing many risk ...
Quaife RA   +3 more
doaj  

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