Results 41 to 50 of about 1,806,820 (366)

Coronary Artery Spasm [PDF]

open access: yesJournal of Cardiac Surgery, 1980
Coronary artery spasm is a transient reduction in lumen diameter of an epicardial coronary artery of sufficient degree to produce objective evidence of myocardial ischemia in the absence of any significant increase in heart rate or blood pressure. In this article are summarized pathophysiological observations, the coronary angiographic anatomy of ...
openaire   +4 more sources

Systematic Review of Patients Presenting With Suspected Myocardial Infarction and Nonobstructive Coronary Arteries

open access: yesCirculation, 2015
Background— Myocardial infarction with nonobstructive coronary arteries (MINOCA) is a puzzling clinical entity with no previous evaluation of the literature. This systematic review aims to (1) quantify the prevalence, risk factors, and 12-month prognosis
S. Pasupathy   +4 more
semanticscholar   +1 more source

Patients with acute myocardial infarction and non-obstructive coronary arteries: safety and prognostic relevance of invasive coronary provocative tests

open access: yesEuropean Heart Journal, 2017
Aims Functional alterations of epicardial coronary arteries or coronary microcirculation represent a frequent cause of myocardial infarction and non-obstructive coronary arteries (MINOCA).
R. Montone   +7 more
semanticscholar   +1 more source

Apelin Does Not Impair Coronary Artery Relaxation Mediated by Nitric Oxide-Induced Activation of BKCa Channels

open access: yesFrontiers in Pharmacology, 2021
Apelin-APJ receptor signaling regulates vascular tone in cerebral and peripheral arteries. We recently reported that apelin inhibits BKCa channel function in cerebral arteries, resulting in impaired endothelium-dependent relaxations.
Amreen Mughal   +2 more
doaj   +1 more source

Plaque in superficial femoral arteries indicates generalized atherosclerosis and vulnerability to coronary death: An autopsy study [PDF]

open access: yes, 2008
ObjectivesRisk factors for atherosclerosis have limited ability to identify persons at high risk of coronary heart disease. Assessment of subclinical atherosclerosis in peripheral arteries might improve this limitation.
Dalager, Søren   +3 more
core   +1 more source

Single Coronary Artery

open access: yesJournal of the American College of Cardiology, 2009
![Figure][1] As part of the workup for pulmonary hypertension, a 59-year-old man underwent coronary angiography. This demonstrated a single coronary artery arising from the right sinus of valsalva, which gave off 3 branches that supplied the entire left ventricle.
Michael Quinn   +4 more
openaire   +3 more sources

Attention-based Multi-fidelity Machine Learning Model for Computational Fractional Flow Reserve Assessment [PDF]

open access: yesComputer Methods in Applied Mechanics and Engineering 432 (2024): 117338, 2023
Coronary Artery Disease (CAD) is one of the most common forms of heart disease, which is caused by a buildup of atherosclerotic plaque (known as stenosis) in the coronary arteries, leading to insufficient supplement of blood, oxygen, and nutrients to the heart.
arxiv   +1 more source

Reconstruction of coronary arteries from X-ray angiography: A review. [PDF]

open access: yes, 2016
Despite continuous progress in X-ray angiography systems, X-ray coronary angiography is fundamentally limited by its 2D representation of moving coronary arterial trees, which can negatively impact assessment of coronary artery disease and guidance of ...
Agostoni   +156 more
core   +1 more source

Diagnosis and Management of Anomalous Coronary Arteries with a Malignant Course

open access: yesInterventional Cardiology: Reviews, Research, Resources, 2019
Although the prevalence of anomalous coronary artery from the opposite sinus (ACAOS) in the general population is low, more frequent use of invasive and non-invasive imaging to rule out coronary artery disease has seen an increase in absolute numbers of ...
Christoph Gräni   +3 more
doaj   +1 more source

Lean and Obese Coronary Perivascular Adipose Tissue Impairs Vasodilation via Differential Inhibition of Vascular Smooth Muscle K+ Channels [PDF]

open access: yes, 2015
OBJECTIVE: The effects of coronary perivascular adipose tissue (PVAT) on vasomotor tone are influenced by an obese phenotype and are distinct from other adipose tissue depots. The purpose of this investigation was to examine the effects of lean and obese
Goodwill, Adam G.   +4 more
core   +1 more source

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