A case of severe aortic stenosis with normal coronary arteriograms was associated with myocardial infarction involving the circumferential subendocardial wall of the left ventricle. The infarct was caused solely by the severe aortic stenosis and resulted from the extreme disparity between myocardial oxygen supply and demand.
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http://dx.doi.org/10.1253/circj.67.891 | DOI Listing |
Int J Cardiol Congenit Heart Dis
June 2023
Radiology Department, Aswan Heart Centre, Aswan, Egypt.
Background: Nikaidoh translocation operation is increasingly being used for patients with TGA, VSD and LVOTO. The early results of this operation are excellent and possibly better than the Rastelli repair. However, the long-term results remain inadequately defined.
View Article and Find Full Text PDFInt J Cardiol Congenit Heart Dis
September 2024
University of Sydney, Camperdown, NSW, 2050, Australia.
Background: Although several National Data Registries for Congenital Heart Disease (CHD) exist, few are comprehensive and contemporary. A National Australian CHD Registry has been developed that aims to redress this by creating the first comprehensive data collection for CHD children and adults, initially across Australia.
Methods: We defined and collected a minimum dataset of demographics, diagnoses, and procedures from people with CHD presenting at participating quaternary CHD services Australia-wide.
Can J Cardiol
December 2024
Cardiology Department, Southlake Regional Health Centre, Newmarket, Ontario, Canada. Electronic address:
Background: Patients with symptomatic aortic stenosis are a vulnerable population with associated cardiac damage and a significant comorbidity burden. This study aimed to determine the rate, factors associated with, and prognostic value of poor functional status (NYHA class III-IV) in patients with severe aortic stenosis undergoing transcatheter aortic valve replacement (TAVR).
Methods: This multicenter study included 6,363 transarterial TAVR patients, classified according to baseline functional status (NYHA class I-II vs.
Comput Biol Med
December 2024
Department of Electrical, Computer and Biomedical Engineering, Toronto Metropolitan University, 350 Victoria Street, Toronto, M5B 2K3, Canada. Electronic address:
Background: Physics-informed neural networks (PINNs) are increasingly being used to model cardiovascular blood flow. The accuracy of PINNs is dependent on flow complexity and could deteriorate in the presence of highly-dynamical blood flow conditions, but the extent of this relationship is currently unknown. Therefore, we investigated the accuracy and performance of PINNs under a range of blood flow conditions, from laminar to turbulent-like flows.
View Article and Find Full Text PDFJACC Cardiovasc Interv
November 2024
Institut Universitaire de Cardiologie et de Pneumologie, Université Laval, Quebec City, Quebec, Canada. Electronic address:
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