Results 221 to 230 of about 31,527 (236)
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Neurona in the region of the atrioventricular node
Human Pathology, 1981A three month old infant died of apparent sudden infant death syndrome. Autopsy showed a neuroma in the region of the atrioventricular node, unassociated with neurofibromatosis. The atrioventricular node and bundle of His were normal. It was not possible to ascribe the sudden death to the neuroma.
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Effect of Dual Atrioventricular Node Pathways on Atrioventricular Reentrant Tachycardia
Circulation, 1995Background Dual atrioventricular (AV) node pathway physiology is frequently observed in patients with AV accessory pathways. Methods and Results To examine the implications of this, we identified 36 patients (19 men and 17 women; mean±SD age, 30±13 years) with both phenomena. The 36
Csanádi, Zoltán +4 more
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Corpora amylacea in mesothelioma of the atrioventricular node
The Journal of Pathology, 1978Rounded or polyhedral, acellular, dense lamellated structures were seen within gland-like spaces in a case of atrioventricular mesothelioma. These structures exhibited many of the histochemical characteristics of amyloid, viz., pink colour with green birefringence and bright red fluorescence with alkaline Congo red; ortochromasia and red birefringence ...
Raffaele David, Yehuda Hiss
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Heart block and mesothelioma of the atrioventricular node
The American Journal of Cardiology, 1967Abstract A case of a primary mesothelioma of the atrioventricular node is described. The tumor caused complete heart block for at least 30 years. The 9 previously reported cases are summarized. The microscopic nature of the tumor and the tendency for heart block to occur before the fifth decade of life are emphasized.
Daniel R. Alonso +3 more
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Clarifying the anatomy of the atrioventricular node artery
International Journal of Cardiology, 2018Reports of conduction abnormalities necessitating permanent pacemaker implantation due to atrioventricular node artery injury and increasing evidence of stenosis of the atrioventricular node artery in cases of sudden death are of unsolved clinical importance.
Fumi Sato, Tomokazu Kawashima
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Propagation of impulses through the atrioventricular node
American Journal of Physiology-Legacy Content, 1959Records taken from the bundle of His and A-V node region of isolated and perfused dogs' hearts showed an action potential (N potential), which appeared after the auricular response and preceding the electrogram of the bundle of His (H potential). The H potential may disappear without affecting the N potential and the latter may be abolished while the ...
Jesús Alanís +3 more
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Selective Hypervagotonia Isolated to the Atrioventricular Node
Pacing and Clinical Electrophysiology, 1988Thirteen patients with recurrent unexplained syncope or presyncope underwent electrophysiological evaluation. A prolonged effective refractory period and functional refractory period of the atrioventricular node as well as slow paced rate to atrioventricular block were the only abnormalities found. Ventricular tachycardia could not be induced.
David A. Rubin +3 more
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The development of innervation in the rat atrioventricular node [PDF]
Cell and Tissue Research, 1977 The problem of development of the innervation of the rat atrioventricular node has been investigated by electron microscopy. Nerve bundles appear in relation to the node as early as the second postnatal day and vesiculated axons are seen throughout the entire node by the fourth day. Intimate contacts between nodal cells, axons and terminal varicosities
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Pacing and Clinical Electrophysiology, 1993
The anatomical substrate for atrioventricular (AV) node reentry is unclear. To gain insights into the mechanism of cure of AV node reentry by nonpharmacological techniques, we compared AV node properties in 53 patients undergoing operative therapy (perinodal dissection) and 43 undergoing radiofrequency ablation (28 posterior approach, 15 anterior ...
George J. Klein +5 more
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The anatomical substrate for atrioventricular (AV) node reentry is unclear. To gain insights into the mechanism of cure of AV node reentry by nonpharmacological techniques, we compared AV node properties in 53 patients undergoing operative therapy (perinodal dissection) and 43 undergoing radiofrequency ablation (28 posterior approach, 15 anterior ...
George J. Klein +5 more
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Models of the Atrioventricular Node
1992The mechanism of the ventricular response in atrial fibrillation has long been a puzzle, the answer to which lies in the working of the atrioventricular node. Any attempted solution must be consistent with, and preferably also illuminate, the known behaviour of the atrioventricular node in sinus rhythm.
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