Results: 178

Función pulmonar: medición continua de la saturación del pulso arterial de oxígeno: propuesta para interpretación

La medición continua de la saturación de pulso arterial de oxígeno (SpO2) es un método no invasivo, confiable y seguro. El consolidado permite obtener valores promedio de SpO2 y frecuencia cardiaca, gráficos y valores acumulados, rangos de valores de SpO2, que permiten de...

Respuesta autonómica cardiovascular al estrés mental inducido por la prueba de cálculo aritmético
Autonomic cardiovascular response to mental stress induced by the arithmetic computation test

Introducción: El estrés mental agudo, así como los estados de ansiedad inducidos para influenciar la reactividad psicofisiológica en jóvenes sanos, aportan cambios en los patrones nerviosos que pueden ser medidos mediante la variabilidad de la frecuencia cardiaca. Objetivo: Determinar las diferenci...

Frequência cardíaca, lactacidemia e gasto energético de equinos da raça Crioula em provas credenciadoras ao Freio de Ouro

Avaliações com o intuito de mensurar marcadores de eficiência na performance esportiva do cavalo Crioulo são escassas e de fundamental importância no que tange às possíveis especificidades da raça. O objetivo do presente trabalho foi avaliar e determinar os padrões de frequência cardíaca, velo...

Autonomic function may not modulate irisin release in healthy adults: findings from a randomized cross-over study

ABSTRACT Objective Autonomic nervous system, especially the sympathetic nervous system, may stimulate the expression of peroxisome proliferator-activated receptor γ coactivator-1α, which regulates irisin. This study aimed to explore whether there was any association between autonomic function...

Oxygen saturation and heart rate in children at high altitude: a different response of Aymaras and non-Aymaras with chronic exposure at 3500 m

This work aims to determine if there is a difference between the cardiorespiratory response of children who chronically live at high altitude (Aymaras and non-Aymaras) compared to children that arrive as tourist at a high altitude of 3500 m (Putre, Chile). The subjects were children (Aymaras and non-Ayma...

Evaluación de la carga fisiológica de trabajo con fines ergonómicos en actividades mineras que se desarrollan en altura geográfica

Desde la perspectiva de la Ergonomía y la Fisiología del Trabajo, hay escaso conocimiento acerca del impacto que trabajos de alta demanda energética, efectuados en altura geográfica, tienen sobre el bienestar laboral de quienes los ejecutan. La evaluación de la respuesta fisiológica durante trabajo...

Unusual ventricular activation produced by temporary transvenous cardiac pacing: electrovectorcardiographic findings

Arch. cardiol. Méx; 90 (1), 2020
Abstract Complete heart block (CHB) results from dysfunction of the cardiac conduction system, which results in complete electrical dissociation. The ventricular escape rhythm can have its origin anywhere from the atrioventricular node to the bundle branch-Purkinje system. CHB typically results in bradyc...

Monitorización cardio respiratoria domiciliaria en lactantes

Home cardio-respiratory monitoring began over 40 years ago with the aim of preventing sudden infant death. Although it has been shown that monitoring does not meet this objective, its prescription has been maintained in various clinical situations and with very different criteria. Consensus on the subjec...

Feasibility of non-intubated anesthesia and regional block for thoracoscopic surgery under spontaneous respiration: a prospective cohort study

Braz. j. med. biol. res; 53 (1), 2020
Data about the feasibility and safety of thoracoscopic surgery under non-intubated anesthesia and regional block are limited. In this prospective study, 57 consecutive patients scheduled for thoracoscopic surgery were enrolled. Patients were sedated with dexmedetomidine and anesthetized with propofol and...

Valores médios percorridos no teste de caminhada de seis minutos em crianças saudáveis de Coari (AM)

RESUMO O objetivo desta pesquisa foi estabelecer valores médios percorridos para o teste de caminhada de seis minutos em crianças saudáveis no Norte do Brasil. Este foi um estudo experimental, randomizado, cego e transversal que avaliou 63 crianças saudáveis do sexo masculino e feminino, de 10 a 12 ...