Results: 36

Comparação entre ventilação mecânica convencional protetora e ventilação oscilatória de alta frequência associada à posição prona

RESUMO Objetivo: Comparar os efeitos da ventilação oscilatória de alta frequência e da ventilação mecânica convencional protetora associadas à posição prona quanto à oxigenação, à histologia e ao dano oxidativo pulmonar em modelo experimental de lesão pulmonar aguda. Métodos: Foram inst...

Influence of perfusion status on central and mixed venous oxygen saturation in septic patients

Rev. bras. anestesiol; 67 (6), 2017
Abstract Background and objectives Although there is controversy regarding the role of venous oxygen saturation in the initial resuscitation of septic patients with hypoperfusion these markers are still widely used. This study aimed to evaluate the correlation and concordance between central (SvcO2) and...

Oxygen Saturation in the Dental Pulp of Maxillary Premolars in Different Age Groups - Part 1

Braz. dent. j; 28 (5), 2017
Abstract The aim of this study was to determine oxygen saturation levels in the dental pulp of maxillary premolars in different age groups. A total of 120 human maxillary premolars with normal dental pulps were selected covering the following age groups: 20-24, 25-29, 30-34, 35-39 and 40-44 years (n=24 e...

The value of high-flow nasal cannula oxygen therapy after extubation in patients with acute respiratory failure

Clinics; 72 (9), 2017
OBJECTIVE: To investigate the value of high-flow nasal cannula oxygen therapy after extubation in patients with acute respiratory failure. METHODS: A single-center, prospective, randomized, controlled pilot trial was conducted between January 2013 and December 2014. Sixty enrolled patients were randomiz...

Sleep-disordered breathing in patients with COPD and mild hypoxemia: prevalence and predictive variables

J. bras. pneumol; 43 (3), 2017
ABSTRACT Objective: To infer the prevalence and variables predictive of isolated nocturnal hypoxemia and obstructive sleep apnea (OSA) in patients with COPD and mild hypoxemia. Methods: This was a cross-sectional study involving clinically stable COPD outpatients with mild hypoxemia (oxygen saturation ...

Manobra de compressão torácica expiratória em adultos ventilados mecanicamente: revisão sistemática com metanálise

RESUMO Objetivo: Revisar na literatura os efeitos da manobra de compressão torácica expiratória sobre a mecânica ventilatória, a desobstrução brônquica, e os índices de oxigenação e hemodinâmica de pacientes adultos ventilados mecanicamente. Métodos: Foi realizada uma revisão sistemática...

Saturación de oxígeno, respiración periódica y apnea durante el sueño en lactantes de 1 a 4 meses a 3200 metros de altura

Arch. argent. pediatr; 115 (1), 2017
Objetivos: describir, en niños de 1-4 meses, a 3200 m de altura, la saturación de oxígeno (SpO2), los índices de apnea y la respiración periódica (RP) durante el sueño. Se realizaron polisomnografías en 18 lactantes sanos. Resultados: las medianas fueron de 87% para la SpO2 y de 7,2% para la RP d...

Cerebral blood flow and vasoreactivity in aging: an arterial spin labeling study

Braz. j. med. biol. res; 50 (4), 2017
Regional cerebral blood flow (CBF) and cerebrovascular reactivity (CVR) in young and elderly participants were assessed using pulsed arterial spin labeling (ASL) and blood oxygenation level-dependent (BOLD) magnetic resonance imaging (MRI) techniques in combination with inhalation of CO2. Pulsed ASL and ...

Decúbito prono en pacientes con síndrome de distrés respiratorio agudo

RESUMEN El síndrome de distrés respiratorio agudo ocupa gran atención en la unidad de cuidados intensivos. A pesar del amplio conocimiento alcanzado sobre la fisiopatología de éste síndrome, el enfoque en la unidad de cuidados intensivos consiste, en gran parte, en un tratamiento de soporte vital y...

Strategy of oxygen transfer coefficient control on the L-erythrulose fermentation by newly isolated Gluconobacter kondonii

Electron. j. biotechnol; 19 (6), 2016
Background: The effect of diverse oxygen transfer coefficient on the L-erythrulose production from meso-erythritol by a newly isolated strain, Gluconobacter kondonii CGMCC8391 was investigated. In order to elucidate the effects of volumetric mass transfer coefficient (K La) on the fermentations, baffled ...