Results 41 to 50 of about 3,578,673 (167)

Clinical Anatomy of the Left and Right Atrial Appendages in Humans: Comparative and Developmental Perspective

open access: yesClinical Anatomy, EarlyView.
ABSTRACT Human atrial chambers derive from distinct embryonic anlagens, the original embryonic atria gradually transforming into the so‐called auricles, or atrial appendages. This study quantifies macroscopic variations in pectinate muscle architecture in human atrial appendages and evaluates their visualization using clinical imaging modalities.
Markéta Lexová   +11 more
wiley   +1 more source

Systemic aging fuels heart failure: Molecular mechanisms and therapeutic avenues

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1059-1080, April 2025.
Abstract Systemic aging influences various physiological processes and contributes to structural and functional decline in cardiac tissue. These alterations include an increased incidence of left ventricular hypertrophy, a decline in left ventricular diastolic function, left atrial dilation, atrial fibrillation, myocardial fibrosis and cardiac ...
Zhuyubing Fang   +7 more
wiley   +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

Evaluation of myocardial function by strain echocardiography in cats with hypertrophic cardiomyopathy phenotypes [PDF]

open access: yesVeterinary World
Background and Aim: Hypertrophic cardiomyopathy (HCM) is the most common cardiac disease in cats, and early detection of myocardial dysfunction remains challenging using conventional echocardiography alone.
Xufeng Ying   +2 more
doaj   +1 more source

Left Atrial Mechanical Dysfunction and the Risk for Ischemic Stroke in People Without Prevalent Atrial Fibrillation or Stroke : A Prospective Cohort Study

open access: yes, 2023
Background: Atrial myopathy-characterized by changes in left atrial function and size-may precede and promote atrial fibrillation (AF) and cardiac thromboembolism.
Gottesman, Rebecca F   +11 more
core   +1 more source

Assessment the Predictive Value of Left Atrial Strain (LAS) on Exercise Tolerance in HCM Patients with E/e' between 8 and 14 by Two-Dimensional Speckle Tracking and Treadmill Stress Echocardiography

open access: yesReviews in Cardiovascular Medicine, 2023
Background: The aim of this study was to evaluate the reservoir, conduit, and contraction function of the left atrium and to evaluate the predictive value of left atrial strain (LAS) on exercise tolerance in hypertrophic cardiomyopathy (HCM) patients ...
Ye Su, Chunmei Li, Lixue Yin
doaj   +1 more source

Normal Ranges of Left Atrial Strain and 3D Echocardiographic Volume Measurements in Türkiye [PDF]

open access: yes
Objective: The clinical importance of left atrial (LA) remodeling and function have been shown in various cardiovascular diseases, such as heart failure and atrial fibrillation.
CİHAN TALAY, BURCU   +5 more
core   +1 more source

Obesity and left atrial function: state of the art

open access: yesGlobal Cardiology
Obesity is an established risk factor for heart failure (HF), with every unit increase in body mass index, the risk of HF increases by 5-7%. Obesity can especially increase the risk for HF with preserved ejection fraction due to left atrial (LA ...
Ahmed Mustafa Rashid   +4 more
doaj   +1 more source

Experimental Extracorporeal Circulation System: A Pilot Study in Rats

open access: yesArtificial Organs, EarlyView.
A miniature extracorporeal circulation (ECC) system was developed for reproducible rodent studies. This system incorporates an integrated heat exchanger and a silicone membrane oxygenator within a double‐lumen circuit, resulting in an ultralow priming volume of < 1.5 mL.
Akira T. Kawaguchi   +7 more
wiley   +1 more source

Magnetic-Resonance-Imaging-Based Left Atrial Strain and Left Atrial Strain Rate as Diagnostic Parameters in Cardiac Amyloidosis

open access: yes, 2022
Aims: The present study aims to evaluate magnetic-resonance-imaging (MRI)-assessed left atrial strain (LAS) and left atrial strain rate (LASR) as potential parameters for the diagnosis of cardiac amyloidosis (CA), the distinction of clinical subtypes and
Sommer, Philipp   +29 more
core   +1 more source

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