Results 21 to 30 of about 1,438,452 (291)

Fast growth rate of a right atrial myxoma [PDF]

open access: yesEinstein (São Paulo), 2022
Primary cardiac tumors are rare, with an incidence between 0.0017 and 0.19%, and are asymptomatic in up to 72% of cases. Approximately 75% of tumors are benign, and nearly 50% of these are myxomas.
Douglas Mesadri Gewehr   +6 more
doaj   +1 more source

Regional transcriptomic profiling reveals immune system enrichment in nonfailing atria and all chambers of the failing human heart

open access: yes, 2023
The different chambers of the human heart demonstrate regional physiological traits and may be differentially affected during pathological remodeling, resulting in heart failure. Few previous studies, however, have characterized the different chambers at
Magnusson, Rasmus   +10 more
core   +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

Duration of heart failure and the risk of atrial fibrillation: different mechanisms at different times? [PDF]

open access: yes, 2009
Chronic heart failure increases the risk of atrial fibrillation (AF), with the prevalence of AF paralleling the severity of heart failure.1 Factors that underlie this increased susceptibility to AF may include electrical, structural, and neurohumoral ...
Rankin, A.C., Workman, A.J.
core   +1 more source

Unusual massive fatty infiltration of the heart in a British cat: a case report

open access: yesVeterinární Medicína, 2011
A British cat was presented with generalized fatty infiltration of the heart compromising both ventricles and atria, resembling arrhythmogenic right ventricular cardiomyopathy.
C.F. Agudelo   +5 more
doaj   +1 more source

The Distribution and Characteristics of Endogenous Cardiac Stem Cells in All Four Chambers of the Adult Human Heart [PDF]

open access: yes, 2016
The human myocardium harbours resident multi-potent cardiac progenitor cells (CPCs). We investigated the distribution, properties, differentiation potential and effect of LV function on CPCs in all chambers of the human heart.
Latif, Najma   +9 more
core   +1 more source

Mechanisms of termination and prevention of atrial fibrillation by drug therapy [PDF]

open access: yes, 2011
Atrial fibrillation (AF) is a disorder of the rhythm of electrical activation of the cardiac atria. It is the most common cardiac arrhythmia, has multiple aetiologies, and increases the risk of death from stroke.
Smith, G.L.   +5 more
core   +1 more source

Atrial cellular electrophysiological changes in patients with ventricular dysfunction may predispose to AF [PDF]

open access: yes, 2009
<b>Background:</b> Left ventricular systolic dysfunction (LVSD) is a risk factor for atrial fibrillation (AF), but the atrial cellular electrophysiological mechanisms in humans are unclear.
Marshall, G.E.   +11 more
core   +1 more source

Accurate Detection of Septal Defects With Fetal Ultrasonography Images Using Deep Learning-Based Multiclass Instance Segmentation

open access: yesIEEE Access, 2020
Accurate screening for septal defects is important for supporting radiologists' interpretative work. Some previous studies have proposed semantic segmentation and object detection approaches to carry out fetal heart detection; unfortunately, the models ...
Siti Nurmaini   +7 more
doaj   +1 more source

National survey of the prevalence, incidence, primary care burden, and treatment of heart failure in Scotland [PDF]

open access: yes, 2004
Objective: To examine the epidemiology, primary care burden, and treatment of heart failure in Scotland, UK. Design: Cross sectional data from primary care practices participating in the Scottish continuous morbidity recording scheme between 1 April ...
Chalmers, J.   +9 more
core   +6 more sources

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