Results 121 to 130 of about 11,576,054 (206)

Post-extrasystolic potentiation differentiates “true” from “pseudo” Low-flow, Low-gradient aortic stenosis

open access: yes, 2020
Post-extrasystolic potentiation (PESP) is a marker of contractile reserve and refers to the augmentation of left ventricular contractility due to preload recruitment and rise in intracellular calcium following a premature beat.
Sofie Verstreken   +2 more
core   +1 more source

Nucleic Acids as Emerging Regulators of Calcium Phosphate Biomineralization

open access: yesThe FASEB Journal, Volume 40, Issue 17, 15 September 2026.
Calcium phosphate biomineralization has traditionally been considered a protein‐regulated process. This review highlights the emerging role of nucleic acids, which interact with mineral phases through adsorption, coprecipitation, and templating, thereby influencing crystal nucleation and growth.
Fanny Duhalde   +2 more
wiley   +1 more source

Severe mitral stenosis as a cause of paradoxical low-flow, low-gradient severe aortic stenosis: an explorative study on hemodynamics and outcomes

open access: yesFrontiers in Cardiovascular Medicine
BackgroundAortic stenosis (AS) and mitral stenosis (MS) are valvular heart diseases that may present concomitantly, particularly in regions where rheumatic heart disease remains prevalent.
Dania Mohty   +14 more
doaj   +1 more source

Categories of Aortic Stenosis: What’s New and the Clinical Implications

open access: yesMedicina
Aortic valve stenosis (AS) is assessed by echocardiography in clinical practice. Conventionally, the aortic valve area, peak transaortic valve velocity/gradient and the mean transvalvular gradient determine if the AS is categorized as mild, moderate or ...
Jamie Sin Ying Ho   +11 more
doaj   +1 more source

Low flow–low gradient aortic stenosis

open access: yesJournal of the American College of Cardiology, 2004
Aurigemma, Gerard P., Gaasch, William H.
openaire   +1 more source

Paradoxical low-flow low-gradient aortic stenosis: an intermediate state between moderate and severe aortic stenosis?

open access: yes, 2016
Background. Recently the concept of paradoxical low flow-low gradient aortic stenosis (PLFLG AS) despite preserved ejection fraction (EF) has been introduced.
S Poli   +6 more
core   +1 more source

Paradoxical Low-Flow, Low-Gradient Aortic Stenosis [PDF]

open access: yesCirculation, 2013
Philippe, Pibarot, Jean G, Dumesnil
openaire   +2 more sources

Uncommon cause of paradoxical low-flow low-gradient severe aortic stenosis

open access: yesHellenic Journal of Cardiology, 2019
Sotirios P. Dardas   +4 more
doaj   +1 more source

Outcome of Patients with Low-Flow/Low-Gradient Severe Aortic Stenosis Who Underwent Aortic Valve Replacement

open access: yes, 2017
Background: It is well-documented that stroke volume and gradient are indexed to classify patients with aortic stenosis into several phenotypes. The purpose of the present study was to estimate the impact of stroke volume and gradient on the clinical ...
Xing li Fan   +7 more
core   +1 more source

Home - About - Disclaimer - Privacy