Results 21 to 30 of about 1,454,735 (293)

Atrial Strain and Strain Rate: A Novel Method for the Evaluation of Atrial Stunning

open access: yesArquivos Brasileiros de Cardiologia, 2016
Atrial fibrillation (AF) is the most common arrhythmia seen in adults. Atrial stunning is defined as the temporary mechanical dysfunction of the atrial appendage developing after AF has returned to sinus rhythm (SR).We aimed to evaluate atrial contractile functions by strain and strain rate in patients with AF, following pharmacological and electrical ...
Ozkan, Hakan   +4 more
openaire   +5 more sources

Impact of the MitraClip Procedure on Left Atrial Strain and Strain Rate [PDF]

open access: yesCirculation: Cardiovascular Imaging, 2018
Background— Although reverse remodeling of the left atrium (LA) has been shown after MitraClip placement in degenerative mitral regurgitation (MR), changes in LA strain and strain rate have not been evaluated in these patients or compared with surgical mitral valve repair. Methods and Results—
Esra, Gucuk Ipek   +6 more
openaire   +2 more sources

Left atrial strain — a current clinical perspective

open access: yesKardiologia Polska, 2021
The speckle-tracking technique has become an easily accessible, quick-to-use, and straightforward tool for assessing advanced myocardial function. Achievements in the analysis of the left atrium have demonstrated that it plays an important role in the physiology and pathophysiology of the circulatory system. Deformation analysis allows the detection of
Kupczynska K.   +3 more
openaire   +4 more sources

Chronological changes of left atrial strain.

open access: yes, 2022
(A-B) Time course of LA reservoir (LAS(r)) and contractile (LAS(ct)) strain for each group (presented as boxplots and lines for individual animals). Statistical significance was assigned at p < 0.05.
Nienke J. Verzaal (13104475)   +11 more
core   +1 more source

Presence of atrial natriuretic factor prohormone in enterochromaffin cells of the human large intestine [PDF]

open access: yes, 1991
Atrial natriuretic factor is a hormone intimately involved in water and salt homeostasis. The heart constitutes the major but not exclusive site of synthesis of this hormone.
Cantin, M.   +3 more
core   +1 more source

Altered density of glomerular binding sites for atrial natriuretic factor in bile duct-ligated rats with ascites [PDF]

open access: yes, 1991
The renal response to atrial natriuretic factor is blunted in cirrhosis with ascites. This might be due to alterations of renal receptors for atrial natriuretic factor.
Vollmar, Angelika M.   +5 more
core   +1 more source

Measurement of left atrial strain (top) and strain rate (bottom).

open access: yes, 2014
Abbreviations: PALS, Peak atrial longitudinal strain; ALSsyst, peak atrial longitudinal strain rate during ventricular systole; ALSearly, peak atrial longitudinal strain rate during ventricular early diastole; ALSlate, peak atrial longitudinal strain ...
Jen-Te Hsu (633871)   +6 more
core   +1 more source

A Study on Left Atrial Function in Patients with Essential Hypertension Using Four-Dimensional Echocardiography [PDF]

open access: yesAdvanced Ultrasound in Diagnosis and Therapy
Objective Aimed to evaluate patients with essential hypertension (EH) using four-dimensional automatic left atrial quantification (4DLAQ) To assess the occurrence of EH.
Junrong Hong, MD, Pingyang Zhang, MD, PhD, Mengyao Fei, MD, Lingling Wang, MD
doaj   +1 more source

Restrictive Atrial Dysfunction in Cardiac Amyloidosis: Differences between Immunoglobulin Light Chain and Transthyretin Cardiac Amyloidosis Patients

open access: yesBiomedicines, 2022
Background: In cardiac amyloidosis, the prevalence of thromboembolic events and atrial fibrillation is higher in transthyretin amyloidosis compared to immunoglobulin light chain amyloidosis.
Mathijs O. Versteylen   +3 more
doaj   +1 more source

Electrophysiological and arrhythmogenic effects of 5-hydroxytryptamine on human atrial cells are reduced in atrial fibrillation [PDF]

open access: yes, 2007
5-Hydroxytryptamine (5-HT) is proarrhythmic in atrial cells from patients in sinus rhythm (SR) via activation of 5-HT<sub>4</sub> receptors, but its effects in atrial cells from patients with atrial fibrillation (AF) are unknown.
Kane, K.A.   +3 more
core   +1 more source

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