Cardiac Autonomic Function
Mostrando 1-12 de 67 artigos, teses e dissertações.
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1. Autonomic dysfunction is common in liver cirrhosis and is associated with cardiac dysfunction and mortality: prospective observational study
ABSTRACT BACKGROUND: Although autonomic dysfunction has been shown to be associated with liver cirrhosis, the prevalence and prognostic implications are unclear. Abnormal heart rate variability (HRV), a measure of autonomic function, has not been well investigated in cirrhosis. OBJECTIVE: To evaluate the prevalence of high-risk HRV parameters in a cohort o
Sao Paulo Medical Journal. Publicado em: 2022
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2. Dysautonomia Evaluation by Holter in Chagas Heart Disease
Abstract Background Sudden cardiac death is the main lethal mechanism associated with Chagas cardiomyopathy. Studies suggest that dysautonomia may represent a relevant, intense, independent, and early phenomenon in the natural history of the disease, even when ventricular systolic function is preserved, and may also be the mechanism that triggers malignant
International Journal of Cardiovascular Sciences. Publicado em: 2022
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3. Impaired baroreflex sensitivity and increased systolic blood pressure variability in chronic post-ischemic stroke
OBJECTIVES: Acute post-stroke patients present cardiovascular autonomic dysfunction, which manifests as lower heart rate variability and impaired baroreflex sensitivity. However, few studies performed to date have evaluated cardiovascular autonomic function in chronic post-stroke patients. The aim of this study was to evaluate cardiovascular autonomic modul
Clinics. Publicado em: 08/10/2018
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4. ACE gene dosage determines additional autonomic dysfunction and increases renal angiotensin II levels in diabetic mice
OBJECTIVES: The present study aimed to investigate cardiovascular autonomic modulation and angiotensin II (Ang II) activity in diabetic mice that were genetically engineered to harbor two or three copies of the angiotensin-converting enzyme gene. METHODS: Diabetic and non-diabetic mice harboring 2 or 3 copies of the angiotensin-converting enzyme gene were
Clinics. Publicado em: 02/08/2018
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5. Recurrence Plots: a New Tool for Quantification of Cardiac Autonomic Nervous System Recovery after Transplant
Abstract Objective: To evaluate a possible evolutionary post-heart transplant return of autonomic function using quantitative and qualitative information from recurrence plots. Methods: Using electrocardiography, 102 RR tachograms of 45 patients (64.4% male) who underwent heart transplantation and that were available in the database were analyzed at differ
Braz. J. Cardiovasc. Surg.. Publicado em: 2017-08
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6. Autonomic and Renal Alterations in the Offspring of Sleep-Restricted Mothers During Late Pregnancy
OBJECTIVES: Considering that changes in the maternal environment may result in changes in progeny, the aim of this study was to investigate the influence of sleep restriction during the last week of pregnancy on renal function and autonomic responses in male descendants at an adult age. METHODS: After confirmation of pregnancy, female Wistar rats were rand
Clinics. Publicado em: 2016-09
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7. Sevoflurane preconditioning during myocardial ischemia-reperfusion reduces infarct size and preserves autonomic control of circulation in rats
ABSTRACT PURPOSE: To investigate the myocardial ischemia-reperfusion with sevoflurane anesthetic preconditioning (APC) would present beneficial effects on autonomic and cardiac function indexes after the acute phase of a myocardial ischemia-reperfusion. METHODS: Twenty Wistar rats were allocated in three groups: control (CON, n=10), myocardial infarction w
Acta Cir. Bras.. Publicado em: 2016-05
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8. Non-linear indices of heart rate variability during endodontic treatment
Abstract Dental treatment promotes psychosomatic change that can influence the procedure and compromise the general well-being of the patient. In this context, it highlights the importance of evaluating the function of the autonomic nervous system in individuals undergoing endodontic treatment. Thus, this manuscript aimed to analyse cardiac autonomic modulat
Braz. oral res.. Publicado em: 23/02/2016
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9. Exercise-induced ventricular arrhythmias and vagal dysfunction in Chagas disease patients with no apparent cardiac involvement
INTRODUCTION : Exercise-induced ventricular arrhythmia (EIVA) and autonomic imbalance are considered as early markers of heart disease in Chagas disease (ChD) patients. The objective of the present study was to verify the differences in the occurrence of EIVA and autonomic maneuver indexes between healthy individuals and ChD patients with no apparent cardia
Rev. Soc. Bras. Med. Trop.. Publicado em: 2015-04
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10. Is autonomic function associated with left ventricular systolic function in Chagas heart disease patients undergoing treatment for heart failure?
Introduction The association between cardiac autonomic and left ventricular (LV) dysfunction in Chagas disease (ChD) is controversial. Methods A standardized protocol that includes the Valsalva maneuver, a respiratory sinus arrhythmia (RSA) test, and an echocardiographic examination was used. Spearman correlation coefficients (rho) were used to investigat
Rev. Soc. Bras. Med. Trop.. Publicado em: 2014-04
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11. Acute effects of different inspiratory resistive loading on heart rate variability in healthy elderly patients
BACKGROUND: The cardiovascular system is noticeably affected by respiration. However, whether different inspiratory resistive loading intensities can influence autonomic heart rate (HR) modulation remains unclear. OBJECTIVE: The objective was to investigate HR modulation at three different inspiratory resistive loading intensities in healthy elderly men.
Braz. J. Phys. Ther.. Publicado em: 23/08/2013
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12. Controle cardiovascular em fêmeas ooforectomizadas diabéticas: efeitos do treinamento físico dinâmico aeróbio, resistido ou combinado / Cardiovascular control in female diabetic ovariectomized rats: effects of dynamic aerobic, resistance and combined exercise training
Aerobic exercise training induces attenuation of cardiometabolic disorders that affect postmenopausal and/or diabetic women. However, there few and controversial studies involving resistance or combined training (aerobic + resistance) in these conditions. Thus, the objectives of this study were to evaluate the metabolic, cardiac, hemodynamic and autonomic ef
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/07/2012