Atrial Circulation
Mostrando 1-12 de 65 artigos, teses e dissertações.
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1. The prognostic value of the CHA2DS2-VASc score in coronary collateral circulation and long-term mortality in coronary artery disease
SUMMARY BACKGROUND: The CHA2DS2-VASc score is used to determine thromboembolic risk in cases of atrial fibrillation. The predictive value of this score in predicting coronary collateral circulation in chronic total occlusion is unknown. OBJECTIVE: The aim of this study was to investigate the relationship between the CHA2DS2-VASc score and coronary collater
Revista da Associação Médica Brasileira. Publicado em: 2022
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2. The Anaortic Technique with Bilateral Internal Thoracic Artery Grafting - Filling the Gap in Coronary Artery Bypass Surgery
Abstract Coronary artery bypass grafting (CABG) has consolidated its role as the most effective procedure for treating patients with advanced atherosclerotic coronary artery disease, reducing the long-term risk of myocardial infarction and death compared to other therapies and relieving angina. Despite the recognized benefits afforded by surgical myocardial
Braz. J. Cardiovasc. Surg.. Publicado em: 2021-06
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3. Predictors of Unfavourable Outcomes in Children and Adolescents Submitted to Surgical Mitral Valvuloplasty Secondary to Chronic Rheumatic Heart Disease
Resumo Fundamento: A plastia da valva mitral, em pacientes pediátricos com cardiopatia reumática crônica, é superior à troca valvar e vem sendo utilizada com bons resultados. Objetivo: Identificar variáveis preditoras de desfecho desfavorável em crianças e adolescentes submetidos à valvoplastia mitral cirúrgica secundária à cardiopatia reumáti
Arq. Bras. Cardiol.. Publicado em: 09/09/2019
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4. The role of oxytocin in cardiovascular regulation
Studies of body volume expansion have indicated that lesions of the anteroventral third ventricle and median eminence block the release of atrial natriuretic peptide (ANP) into the circulation. Detailed analysis of the lesions showed that activation of oxytocin (OT)-ergic neurons is responsible for ANP release, and it has become clear that activation of neur
Braz J Med Biol Res. Publicado em: 18/03/2014
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5. Effectiveness of metoprolol in preventing atrial fibrillation and flutter in the postoperative period of coronary artery bypass graft surgery
Objective - To assess the effectiveness of metoprolol in preventing clinically detectable atrial fibrillation (AF) and flutter after coronary artery bypass graft (CABG) surgery . Methods - An open, randomized study was carried out to treat 200 patients who had undergone isolated CABG surgery with extracorporeal circulation. The patients were randomized to ei
Publicado em: 2010
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6. Intracaval and intracardiac extension of Wilms' tumor: the influence of preoperative chemotherapy on surgical morbidity
OBJECTIVES: The aim of this retrospective study is to compare surgical complications and long-term survival in children with Wilms' tumor (WT) and tumor thrombus receiving or not preoperative chemotherapy MATERIALS AND METHODS: Review of the charts of 155 children with WT treated between 1983 and 2005, and analysis of 16/155 (10.3%) children with WT who pres
International braz j urol. Publicado em: 2007-10
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7. "Estudo dos efeitos da estimulação atrial temporária na prevenção da fibrilação atrial no pós-operatório de cirurgia de revascularização do miocárdio com circulação extracorpórea" / Study the effect of temporary atrial pacing in prevention of atrial fibrillation after coronary artery bypass graft surgery
Avaliamos os efeitos da estimulação atrial temporária na prevenção da fibrilação atrial no pós-operatório de revascularização do miocárdio com circulação extracorpórea e identificamos os fatores de risco para o aparecimento dessa arritmia. Estudamos 240 pacientes que ao término da cirurgia de revascularização miocárdica submeteram-se ao im
Publicado em: 2006
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8. Arterial vascularization of the sinoatrial node area in normal human hearts / Vascularização arterial da região do nó sinoatrial em corações humanos normais
The sinoatrial node (NSA) is responsible for the production of the nervous impulses, which determine the cardiac contraction and its blood supply is provided by the sinoatrial node artery - ANSA. In this research we aimed to study the arterial vascularization of the NSA area in normal human hearts, with macroscopic techniques intending to identify the origin
Publicado em: 2006
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9. Surgical myocardial revascularization without extracorporeal circulation
OBJECTIVE: To assess the immediate postoperative period of patients undergoing myocardial revascularization without extracorporeal circulation with different types of grafts. METHODS: One hundred and twelve patients, 89 (79.5%) of whom were males, were revascularized without extracorporeal circulation. Their ages ranged from 39 to 85 years. The criteria for
Arquivos Brasileiros de Cardiologia. Publicado em: 2003-05
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10. Morphofunctional study of the junction between the left atrium and the pulmonary veins in patient with pulmonary hypertension
OBJECTIVE: To study the arrangement of the myocardial fiber bundles at the pulmonary venous left atrial junction in patients with pulmonary hypertension, and to discuss the pathophysiological importance of this element in the etiology of acute pulmonary edema. METHODS: We obtained 12 hearts and their pulmonary vein extremities from postmortem examinations of
Arquivos Brasileiros de Cardiologia. Publicado em: 2001-09
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11. Oxytocin is a cardiovascular hormone
Oxytocin (OT), a nonapeptide, was the first hormone to have its biological activities established and chemical structure determined. It was believed that OT is released from hypothalamic nerve terminals of the posterior hypophysis into the circulation where it stimulates uterine contractions during parturition, and milk ejection during lactation. However, eq
Brazilian Journal of Medical and Biological Research. Publicado em: 2000-06
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12. A pulsatile flow model for in vitro quantitative evaluation of prosthetic valve regurgitation
A pulsatile pressure-flow model was developed for in vitro quantitative color Doppler flow mapping studies of valvular regurgitation. The flow through the system was generated by a piston which was driven by stepper motors controlled by a computer. The piston was connected to acrylic chambers designed to simulate "ventricular" and "atrial" heart chambers. In
Brazilian Journal of Medical and Biological Research. Publicado em: 2000-03