Armando Augusto Almeida-Junior

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OBJECTIVE To compare spirometry and volumetric capnography (VCap) to determine if the capnographic values add more information about early lung disease in cystic fibrosis (CF) patients. METHODS This was a cross-sectional study involving CF patients: Group I (42 patients, 6-12 years of age); and Group II (22 patients, 13-20 years of age). The corresponding(More)
The purpose of this in vitro study was to evaluate the effect of air-abrasion/zirconia sintering order on the yttria partially stabilized tetragonal zirconia polycrystal (Y-TZP) surface characterization (roughness, morphology, and phase transformation), flexural strength (FS), and shear bond strength (SBS) to a resin cement. Y-TZP specimens were air abraded(More)
OBJECTIVES To evaluate the association between deadspace/tidal volume ratio (Vd/Vt) and gas exchange variables: Pao2, Paco2, Pao2/Fio2, arterial/alveolar oxygen tension ratio (Pao2/PAo2), alveolar-arterial oxygen tension difference/arterial oxygen tension ratio (P(A-a)o2/Pao2), carbon dioxide production (Vco2), ventilation index ([Paco2 x peak inspiratory(More)
OBJECTIVES To study changes in the variables of volumetric capnography in children and adolescents with asthma compared with a control group and to investigate their changes with the use of bronchodilators and bronchial provocation test with methacholine. METHODS One hundred and three patients with controlled persistent asthma and 40 healthy volunteers(More)
OBJECTIVE To evaluate the association between time on mechanical ventilation and anthropometric, clinical and pulmonary function variables, measured early, in infants on invasive mechanical ventilation with acute respiratory failure due to viral bronchiolitis, and the temporal progression of variables with significant correlations. METHODS Twenty-nine(More)
BACKGROUND AND PURPOSE Although chest physiotherapy techniques are commonly used in the treatment of respiratory diseases, there are, however, few studies in the literature on the effectiveness of these techniques in paediatric patients. The purpose of the present study was to evaluate the effect of the expiratory flow increase technique (EFIT) on the(More)
BACKGROUND Manual hyperinflation (MH) is used to improve mucociliary clearance and alveolar expansion in mechanically ventilated patients. Despite the popularity of MH, studies with adults have shown considerable variability in the results from its use. This study assessed if professional training on the application of MH influences its performance. (More)
BACKGROUND Although self-inflating bags are widely used for manual hyperinflation, they do not allow ventilation parameters, such as pressure or volume, to be set. We studied the ventilation performance of neonatal and pediatric self-inflating bags. METHODS We asked 22 physiotherapists to manually hyperinflate 2 lung models (neonatal and pediatric), using(More)
Background: Although self-inflating bags are widely used for manual hyperinflation, they do not allow ventilation parameters to be set, such as pressure or volume. This study evaluated the ventilatory performance of neonatal and pediatric self-inflating bags from three manufacturers at different oxygen flow rates. Methods: Twenty-two physiotherapists were(More)
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