Navegando por Palavras-chave "Sinoatrial node"

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    Anatomical and clinical aspects of the blood supply of the sinoatrial node
    (Associação Médica Brasileira, 1998-03-01) Lopes, Antonio Carlos [UNIFESP]; Didio, L.j.a.; Buffolo, Enio [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Universidade de Santo Amaro Faculdade de Medicina Surgical Anatomy
    BACKGROUND: The recent study of the variations of the origin of the sinoatrial node and on the arterial network of the perinodal sinusal area in normal hearts points out the importance of this network. PURPOSE: Report on a case of patient with syncope of ischemic etiology. CONCLUSION: In this patient the arterial network did not protect the node from the ischemia caused by the obstruction of the artery of the sinoatrial node.
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    Cardiac arrest induced by muscarinic or adenosine receptors agonists is reversed by DPCPX through double mechanism
    (Elsevier Science Bv, 2018) Camara, Henrique [UNIFESP]; da Silva Junior, Edilson Dantas [UNIFESP]; Garcia, Antonio G.; Jurkiewicz, Aron [UNIFESP]; Dantas Rodrigues, Juliano Quintella [UNIFESP]
    In the right atrium (RA), adenosine and acetylcholine inhibit the pacemaker function of the sinoatrial node and induce cardiac arrest. Pre-incubation of receptor antagonists is known to inhibit the cardiac arrest induced by these agonists
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    Importância da anatomia da circulação coronária atrial na operação de Cox para controle da fibrilação atrial
    (Sociedade Brasileira de Cirurgia Cardiovascular, 1999-01-01) Jatene, Marcelo B.; Hervoso, Cristina M. [UNIFESP]; Terra, Ricardo M.; Guimarães, Maria Helena; Monteiro, Rosangela; Jatene, Fabio Biscegli; Jatene, Adib D.; Universidade deUniversidade deUniversidade de; Universidade Federal de São Paulo (UNIFESP); Universidade de São Paulo (USP)
    Since the appearance of new surgical techniques such as Cox surgery employed for the treatment of cardiac arrhythmia, especially for atrial fibrillation, the knowledge of coronary artery characteristics and courses has been of increasing importance. The aim of this study was the analysis of this circulation and definition of atrial irrigation patterns. Hence, the coronary arteries of 30 normal human hearts were injected with colored resin and carefully dissected. After macroscopic evaluation of the hearts, no atrial irrigation patterns were found. However, when only the sinus atrial node was analyzed, it showed origin patterns as well as course patterns. Seven origin and route patterns of this artery are described, considering the anatomical structure of the atria as reference points. The described patterns, differently from others found in the literature, are easy to understand and apply in surgical techniques which deal with the atria.