Results 1 to 10 of about 76,780 (342)
Electrolyte Content of Rat Heart Atria and Ventricles [PDF]
Circulation Research, 1960 Extracellular tissue spaces are compared using inulin, sucrose, chloride and sodium in hearts perfused with Ringer-Locke solution by Langendorff's method. Also chloride and sodium spaces are given for unperfused, fresh hearts. From the inulin spaces the intracellular chloride, sodium, potassium and water concentrations in both perfused and unperfused ...
J. A. Barclay +2 more
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The influence of epidural anesthesia on the electrical activity of heart atria. [PDF]
Kardiochir Torakochirurgia Pol, 2014 High thoracic epidural anesthesia (TEA) causes blockade of sympathetic fibers involved in innervation of the heart (segments T1-T4), which results in changes of cardiac electrophysiology. The anti-arrhythmic effects of TEA on supraventricular arrhythmias, mainly atrial fibrillation, are controversial.The aim of the study was to assess the influence of ...
Twardowski P +6 more
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Hugely Dilated Atria Distorting Normal Heart Anatomy
Journal of the College of Physicians and Surgeons Pakistan, 2023 Null.
Wardah Saleem +2 more
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Observations on the Atria of the Human Heart by Direct and Semidirect Electrocardiography [PDF]
Circulation, 1952 By evaluation of direct electrocardiographic leads from the right atrium and semidirect esophageal leads from the left atrium, "atriodiagrams" have been constructed for both atria. The spread of activation in the atria has been studied under normal conditions as well as in cases of mitral heart disease, cor pulmonale, etc.
R Wenger, D Hofmann-Credner
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Univentricular heart with common atria. First historical cases
International Journal of Cardiology Congenital Heart Disease, 2021 We report the first well described case of single ventricle and common atria in 1887 in Nantes.
Emmanuel Drouin +2 more
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Ischemic heart disease: structural changes of the atria in preinfarction and postinfarction stages [PDF]
Medicina, 2007 Objective. The aim of this study was to determine atrial structural remodeling during the development of ischemic heart disease. Material and methods. Quantitative histomorphometric parameters of interstitial collagen network (the percentage volume, perimeter, number of fibers per field and collagen–cardiomyocyte volume ratio) of the atria of 132 ...
Dalia Pangonytė +3 more
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Transgenic mice overexpressing Pitx2 in the atria develop tachycardia-bradycardia syndrome. [PDF]
PLoS ONESinoatrial node (SAN) dysfunction often accompanies supraventricular tachyarrhythmias such as atrial fibrillation (AF), which is referred to as tachycardia-bradycardia syndrome (TBS). Although there have been many studies on electrical remodeling in TBS,
Shunsuke Baba +6 more
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Basic fibroblast growth factor in atria and ventricles of the vertebrate heart. [PDF]
The Journal of cell biology, 1989 Extracts from atrial and ventricular heart tissue of several species (chicken, rat, sheep, and cow) are strongly mitogenic for chicken skeletal myoblasts, with the highest apparent concentration of biological activity in the atrial extracts. Using several approaches (biological activity assay and biochemical and immunological analyses), we have ...
Elissavet Kardami, Robert R. Fandrich
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Functional and Structural Differences in Atria Versus Ventricles in Teleost Hearts
, 2012 Across vertebrates, the fish heart is structurally relatively simple. The heart of teleosts is unique in structure, composed of four chambers in series: venous sinus, atrium, ventricle and bulbus arteriosus. The two chambers acting as pumps are the atrium and ventricle, a simplified ver‐ sion of that seen in tetrapods.
Christine E. Genge +2 more
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Vasoactive Intestinal Polypeptide in Rat Heart Atria: the Effect of Hyperthyroidism
Physiological Research, 2000 The effects of transient and sustained hyperthyroidism on vasoactive intestinal polypeptide-like immunoreactivity (VIP-LI) levels were studied in the heart atria of developing and adult rats. Newborn rats were divided into 5 groups. Neo-T animals were treated with thyroxine (T4) during postnatal days 1-8 and sacrificed at the age of 60 days. Neo-S rats
Jitka Kuncová, Jana Slavı́ková
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