In Brief Objective: To evaluate the immediate effects of positive expiratory pressure therapy on oxygen saturation and ventilation after abdominal surgery. Background: Positive to treat postoperative hypoxia is widespread, despite a lack evidence effect. Methods: This randomized, sham-controlled, crossover trial investigated adults 1–2 days surgery at Umeå University Hospital, Sweden. The inter...

Military fighter pilots have to function in environments that unavoidably have an effect on both production and reception of speech. Speech production is affected by for example g-forces, positive pressure breathing (PBG), background noise and workload. This can have an effect on the understandability of speech, which in turn can affect flight safety. This study seeks to analyse the changes in ...

Breathing at very low lung volumes might be affected by decreased expiratory airflow and air trapping. Our purpose was to detect expiratory flow limitation (EFL) and, as a consequence, intrinsic positive end-expiratory pressure (PEEPi) in grossly obese subjects (OS). Eight OS with a mean body mass index (BMI) of 44 +/- 5 kg/m2 and six age-matched normal-weight control subjects (CS) were studied...

and management. Br Med J 2:157-161, 1970 3 Kumura, Falke K, Geffin B, et al: Continuous positive pressure ventilation in acute respiratory failure. N Engl J Med 283:1430-1436, 1970 4 Rutledge RR, Flor RJ: The use of mechanical ventilation with positive end expiratory pressure in the treatment of near-drowning. Anesthesiology 38:194-196, 1973 5 Petty T, Ashbaugh D: The adult respiratory distress...