ABSTRACT Objective: The aim of this study was to investigate the acute effect of a single dose of dark chocolate (70% cocoa) on blood pressure and heart rate variability. Methods: Thirty-one healthy subjects (aged 18-25 years; both sexes) were divided into two groups: 10 subjects in the white chocolate...
Abstract Background: Cardioinhibitory vasovagal response is uncommon during the tilt test (TT). Heart rate variability (HRV) by use of spectral analysis can distinguish patients with that response. Objective: To compare the HRV in patients with cardioinhibitory vasovagal syncope (case group - G1) with ...
Presión Sanguínea/fisiología,
Electrocardiografía/métodos,
Electrocardiografía Ambulatoria,
Frecuencia Cardíaca/fisiología,
Estudios Prospectivos,
Curva ROC,
Valores de Referencia,
Estadísticas no Paramétricas,
Posición Supina/fisiología,
Síncope Vasovagal/fisiopatología,
Pruebas de Mesa Inclinada/métodos,
Factores de Tiempo
RESUMO Objetivo Correlacionar os parâmetros cardiorrespiratórios com a idade gestacional e com o nível de habilidade de alimentação oral na introdução da alimentação oral de recém-nascidos pré-termo. Método Participaram desta pesquisa 37 recém-nascidos pré-termo, clinicamente estáveis. A...
OBJECTIVE: Hypertension decreases the heart rate variability (HRV). Resveratrol, a phenolic compound found in grapes and their products, has been explored for its potential to treat hypertension. We evaluated the effects of low-dose resveratrol on HRV in hypertensive volunteers. METHOD: Twenty-one hyper...
Método Doble Ciego,
Hipertensión/tratamiento farmacológico,
Resveratrol/uso terapéutico,
Antioxidantes/uso terapéutico,
Frecuencia Cardíaca/efectos de los fármacos,
Resveratrol/farmacología,
Estimulación Química,
Antioxidantes/farmacología,
Índice de Masa Corporal,
Consumo de Bebidas Alcohólicas,
Ejercicio Físico
SUMMARY Atrial fibrillation (AF) is the most common arrhythmia in clinical practice and can lead to significant decline in functional status and quality of life among affected patients. The risk of developing AF increases with age and the presence of structural heart disease. Thus, the attendance of pati...
AIM: To compare the results of the water used to bath infarcted patients in bed under oxy-hemodynamic variables. METHOD: This research uses a 2X2 crossover of the interventions: bed bath with constant water temperature at 40°C (BB1) and 42.5°C (BB2) in 20 patients who had acute my...
Villacorta, Aline Sterque;
Villacorta Junior, Humberto;
Souza, Jenne Serrão de;
Teixeira, José Antônio Caldas;
Muradas, Maria Clara S S S;
Alves, Christiane Rodrigues;
Precht, Bernardo Campanário;
Porto, Pilar;
Ubaldo, Letícia;
Mesquita, Cláudio Tinoco;
Nóbrega, Antônio Cláudio Lucas da.
Abstract Background: In the Systolic Heart Failure Treatment With the If Inhibitor Ivabradine Trial (SHIFT), heart rate (HR) reduction with ivabradine was associated with improved survival and reduced hospitalizations in patients with heart failure (HF). The mechanisms by which elevated HR increases mor...
3-Yodobencilguanidina,
Fármacos Cardiovasculares/uso terapéutico,
Enfermedad Crónica,
Desnervación,
Prueba de Esfuerzo,
Corazón/diagnóstico por imagen,
Corazón/inervación,
Insuficiencia Cardíaca/diagnóstico por imagen,
Insuficiencia Cardíaca/tratamiento farmacológico,
Frecuencia Cardíaca/fisiología,
Cintigrafía,
Sistema Nervioso Simpático/diagnóstico por imagen,
Sistema Nervioso Simpático/fisiología
ABSTRACT Background A joint symbolic analysis (JSA) is applied to assess the strength of the cardiovascular coupling from spontaneous beat-to-beat variability of the heart period (HP) and the systolic arterial pressure (SAP) during an experimental protocol inducing a gradual baroreflex unloading evoked ...
INTRODUCTION: Exercises with a flexible pole have been applied in clinical practice for upper limb rehabilitation. Nevertheless, its acute effects on cardiac autonomic regulation are unclear. OBJECTIVE: To evaluate the acute effects of exercise with flexible pole on complex behavior of heart rate variab...
Abstract Background and objectives: The aim of the study were to demonstrate the possible hemodynamic changes and cerebral blood flow alterations in patients who were positioned from supine to beach chair position; and to detect if the position change causes any cortical activity alteration as measured ...
Presión Arterial,
Artroscopía/métodos,
Corteza Cerebral/irrigación sanguínea,
Corteza Cerebral/diagnóstico por imagen,
Circulación Cerebrovascular,
Sedación Consciente,
Electroencefalografía,
Frecuencia Cardíaca,
Persona de Mediana Edad,
Posicionamiento del Paciente/métodos,
Proyectos Piloto,
Estudios Prospectivos,
Hombro/cirugía,
Ultrasonografía Doppler Transcraneal
