Results: 538

Terapia Interdisciplinar e a Diminuição da Sobrecarga Cardiovascular em Obesos

Fundamentos: Associação entre obesidade, terapia interdisciplinar e exercício físico intenso foi descrita para obesos. Contudo o estudo das atividades físicas representando as tarefas do dia a dia e o risco cardiovascular nas atividades do cotidiano torna-se necessário para verificar a ocorrência ...

Volume de Treinamento Aeróbio para o Aumento da Variabilidade da Frequência Cardíaca em Idosos

Os marcadores autonômicos cardiovasculares como a sensibilidade do barorreflexo arterial espontânea (SBR) e a variabilidade da frequência cardíaca (VFC) são prejudicadas com o envelhecimento. O treinamento aeróbio (TA) pode aumentar a VFC, sugerindo uma alteração no controle neurorregulatório do...

Efecto inotrópico y cronotrópico del propranolol sobre aurículas extraídas de ratas con insulina-resistencia inducida por fructosa

Invest. clín; 58 (1), 2017
La insulina-resistencia (IR) es una deficiencia metabólica asociada princi palmente con diabetes tipo 2 y comúnmente relacionada a la etiopatogenia de enfermedades cardiovasculares, siendo el factor determinante del síndrome metabólico. La investigación pretende conocer los efectos cronotrópico e i...

The effects of individually ventilated cages on the respiratory systems of male and female Wistar rats from birth until adulthood

Clinics; 72 (3), 2017
OBJECTIVE: To evaluate the respiratory systems of male and female rats maintained in individually ventilated cages (IVCs) from birth until adulthood. METHODS: Female Wistar rats were housed in individually ventilated cages or conventional cages (CCs) and mated with male Wistar rats. After birth and wean...

Sensitivity, Specificity and Predictive Value of Heart Rate Variability Indices in Type 1 Diabetes Mellitus

Arq. bras. cardiol; 108 (3), 2017
Abstract Background: Heart rate variability (HRV) indices may detect autonomic changes with good diagnostic accuracy. Type diabetes mellitus (DM) individuals may have changes in autonomic modulation; however, studies of this nature in this population are still scarce. Objective: To compare HRV indices ...

Acompanhamento eletrocardiográfico no desenvolvimento de ratos Wistar

A atividade elétrica cardíaca pode ser registrada por meio do eletrocardiograma (ECG), registro capaz de captar as alterações do percurso elétrico. Na literatura científica, não existe descrição de padrões eletrocardiográficos de ratos Wistar desde a fase de recém-nascidos até serem consider...

Dobutamine Stress Echocardiography Safety in Chagas Disease Patients

Arq. bras. cardiol; 108 (2), 2017
Abstract Background: A few decades ago, patients with Chagas disease were predominantly rural workers, with a low risk profile for obstructive coronary artery disease (CAD). As urbanization has increased, they became exposed to the same risk factors for CAD of uninfected individuals. Dobutamine stress e...

Serotoninergic Modulation of Basal Cardiovascular Responses and Responses Induced by Isotonic Extracellular Volume Expansion in Rats

Arq. bras. cardiol; 108 (2), 2017
Abstract Background: Isotonic blood volume expansion (BVE) induced alterations of sympathetic and parasympathetic activity in the heart and blood vessels, which can be modulated by serotonergic pathways. Objective: To evaluate the effect of saline or serotonergic agonist (DOI) administration in the hyp...

Effects of different levels of end-expiratory pressure on hemodynamic, respiratory mechanics and systemic stress response during laparoscopic cholecystectomy

Rev. bras. anestesiol; 67 (1), 2017
Abstract Objective: General anesthesia causes reduction of functional residual capacity. And this decrease can lead to atelectasis and intrapulmonary shunting in the lung. In this study we want to evaluate the effects of 5 and 10 cmH2O PEEP levels on gas exchange, hemodynamic, respiratory mechanics and ...

Effects of lidocaine and magnesium sulfate in attenuating hemodynamic response to tracheal intubation: single-center, prospective, double-blind, randomized study

Rev. bras. anestesiol; 67 (1), 2017
Abstract Background and objectives: Hemodynamic response to airway stimuli is a common phenomenon and its management is important to reduce the systemic repercussions. The objective of this study is to compare the efficacy of intravenous magnesium sulfate versus lidocaine on this reflex hemodynamics aft...