Results 11 to 20 of about 7,583,455 (297)

Altered excitation-contraction coupling in human chronic atrial fibrillation [PDF]

open access: yes, 2012
This review focuses on the (mal)adaptive processes in atrial excitation-contraction coupling occurring in patients with chronic atrial fibrillation. Cellular remodeling includes shortening of the atrial action potential duration and effective refractory ...
Grandi, E., Pandit, S.V., Workman, A.J.
core   +5 more sources

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

Left Atrial Relaxation and Left Ventricular Systolic Function Determine Left Atrial Reservoir Function [PDF]

open access: yesCirculation, 1999
Background —Determinants of left atrial (LA) reservoir function and its influence on left ventricular (LV) function have not been quantified. Methods and Results —In an open-pericardium, paced (70 and 90 bpm) pig model of LV regional ischemia (left anterior descending coronary ...
P, Barbier   +3 more
openaire   +2 more sources

Atrial fibrillation and left atrial size and function: a Mendelian randomization study [PDF]

open access: yesScientific Reports, 2021
AbstractAtrial fibrillation (AF) patients have enlarged left atria (LA), but prior studies suggested enlarged atria as both cause and consequence of AF. The aim of this study is to investigate the causal association between AF and LA size and function.
van de Vegte, Yordi J   +3 more
openaire   +5 more sources

Post-operative atrial fibrillation is influenced by beta-blocker therapy but not by pre-operative atrial cellular electrophysiology [PDF]

open access: yes, 2006
We investigated whether post-cardiac surgery (CS) new-onset atrial fibrillation (AF) is predicted by pre-CS atrial cellular electrophysiology, and whether the antiarrhythmic effect of beta-blocker therapy may involve pre-CS pharmacological remodeling ...
Marshall, Gillian E.   +7 more
core   +5 more sources

Cardiac Resynchronization Therapy and Left Atrial Remodeling: A Novel Insight?

open access: yesBiomedicines, 2023
Cardiac resynchronization therapy (CRT) restores ventricular dyssynchrony, improving left ventricle (LV) systolic function, symptoms, and outcome in patients with heart failure, systolic dysfunction, and prolonged QRS interval. The left atrium (LA) plays
Andrei Dan Radu   +6 more
doaj   +1 more source

Clinical Study on Long-Term Sinus Reversion Rate and Left Atrial Function Recovery of Mitral Valve Disease with Atrial Fibrillation under Modified Surgical Radiofrequency Ablation

open access: yesCardiology Research and Practice, 2021
We aimed to study the long-term sinus reversion rate and recovery of left atrial function after modified surgical radiofrequency ablation for permanent atrial fibrillation caused by mitral valve disease.
Jingle Cui   +5 more
doaj   +1 more source

Systematic Analysis of Gene Expression Differences between Left and Right Atria in Different Mouse Strains and in Human Atrial Tissue [PDF]

open access: yes, 2011
Background: Normal development of the atria requires left-right differentiation during embryonic development. Reduced expression of Pitx2c (paired-like homeodomain transcription factor 2, isoform c), a key regulator of left-right asymmetry, has recently ...
Fabritz Larissa   +38 more
core   +1 more source

Left atrial size in patients with arterial hypertension [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2006
INTRODUCTION Left atrial size is increased in patients with arterial hypertension. Left atrial enlargement represents a risk factor of atrial fibrillation and stroke. Left atrial size depends on the effect of many other etiological factors, predominantly
Milutinović Suzana   +2 more
doaj   +1 more source

A case of left atrial myxoma accompanied by pancytopenia and pathological findings suggestive of pulmonary hypertension [PDF]

open access: yes, 1974
A case of left atrial myxoma accompanied by peculiar symptoms is reported. A 15-year old boy had progressive congestive heart failure and three episodes of acute attacks of panctyopenia. The anemia was accompanied by helmet-shaped, broken red blood cells,
Ogawa, Katsuo   +3 more
core   +1 more source

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