Results 251 to 260 of about 79,145 (303)

A Heart With Quadruple Atria

Circulation, 2015
A 72-year-old woman was admitted to our department for further investigation of a heart defect noted in transthoracic echocardiography performed in a district hospital. The patient complained of palpitations and moderately limited physical activity. On ECG, atrial fibrillation was recorded with a well-controlled ventricular rate.
Małgorzata, Kowalczyk, Mirosław, Kowalski, Marek, Konka, Ilona, Michałowska, Piotr, Hoffman   +4 more
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Immunolocalization of ornithine decarboxylase in rat heart atria

Journal of Molecular and Cellular Cardiology, 1989
Mammalian atrial myocytes secrete a potent natriuretic and diuretic factor, atrial natriuretic peptide (ANP), in response to volume expansion or elevations of right atrial pressure. ANP is synthesized in the atrial atrial myocytes and stored in cytoplasmic secretory granules.
U R, Tipnis, A L, Steiner, C, Skiera, M K, Haddox   +3 more
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Embolization from the Atria in Arteriosclerotic Heart Disease

JAMA, 1961
One thousand autopsied cases were studied to determine the incidence of embolism from the atria in arteriosclerotic heart disease. In this study, it was found that 1 case of embolization occurred in a total of 52 patients with atrial fibrillation (2%), and 2 cases of embolization occurred in a total of 243 cases who were nonfibrillators (0.8%).
D T, BEER, B, GHITMAN
openaire   +2 more sources

Revisiting heart activation-conduction physiology, part I: atria

Journal of Interventional Cardiac Electrophysiology, 2014
This discussion paper re-examines the conduction-activation of the atria, based on observations, with respect to the complexity of the heart as an organ with a brain, and its evolution from a peristaltic tube. The atria do not require a specialized conduction system because they use the subendocardial layer to produce centripetal transmural activation ...
Gerard M, Guiraudon, Douglas L, Jones
openaire   +2 more sources

Primary extramedullary plasmacytoma in the atria of the heart

Cardiovascular Pathology, 2001
A rare case of primary extramedullary plasmacytoma of the heart is described. The large space-occupying tumor in the atrial wall and its associated significant pericardial effusion caused marked impairment of cardiovascular function. The diagnosis was made via intravenous biopsy.
X, Wan, S, Tarantolo, D F, Orton, T C, Greiner   +3 more
openaire   +2 more sources

Characterization of natriuretic peptide production by adult heart atria

American Journal of Physiology-Heart and Circulatory Physiology, 1999
The cardiac polypeptide hormones atrial natriuretic factor (ANF) and brain natriuretic peptide (BNP) are synthesized and costored by atrial cardiocytes and share receptors and many biologic properties. Although some aspects of their synthesis and release are specific for each peptide, it is not clear whether they share intracellular sorting and ...
T, Ogawa, M, Vatta, B G, Bruneau, A J, de Bold   +3 more
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Electrophysiologic Characteristics of Atria in Patients Without Heart Disease

Pacing and Clinical Electrophysiology, 2005
Background: The significance of atrial fibrillation or tachycardia (AF) induction remains debatable. Some believe that the presence of heart disease (HD) increases the sensitivity and decreases the specificity of programmed atrial stimulation (PAS). There are few data in patients without HD.
Béatrice, Brembilla-Perrot, Daniel, Beurrier, Pierre, Houriez, Christine, Suty-Selton, Marc, Nippert, Olivier, Claudon, Marius, Andronache, Yves, Ernst, Emad, Khaldi, Hadj, Belhakem, Batric, Popovic, Arnaud, Terrier de la Chaise, Pierre, Louis   +12 more
openaire   +2 more sources