Resp Care
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Randomized Controlled Trial
A randomized trial of noninvasive positive end expiratory pressure in patients with acquired immune deficiency syndrome and hypoxemic respiratory failure.
Acquired immunodeficiency syndrome (AIDS) is a pandemic disease commonly associated with respiratory infections, hypoxemia, and death. Noninvasive PEEP has been shown to improve hypoxemia. In this study, we evaluated the physiologic effects of different levels of noninvasive PEEP in hypoxemic AIDS patients. ⋯ AIDS patients with hypoxemic respiratory failure improve oxygenation in response to a progressive sequential elevation of PEEP (up to 15 cm H(2)O). However, corresponding elevations in P(aCO(2)) limit the recommended level of PEEP to 10 cm H(2)O. At a level of 5 cm H(2)O, PSV promotes an improvement in the subjective sensation of dyspnea regardless of the PEEP level employed.
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Randomized Controlled Trial Multicenter Study
Preventive use of noninvasive ventilation after extubation: a prospective, multicenter randomized controlled trial.
The effectiveness of noninvasive ventilation (NIV) after extubation in preventing post-extubation respiratory failure is still controversial. ⋯ Preventive use of NIV after extubation in patients who passed spontaneous breathing trial did not show benefits in decreasing extubation failure rate or the mortality rate.
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Randomized Controlled Trial Comparative Study
A randomized trial of conventional chest physical therapy versus high frequency chest wall compressions in intubated and non-intubated adults.
Conventional chest physical therapy (CCPT), applied by therapists using cupped hands to perform percussion, is commonly used in hospitalized adults. However, increased work load demands and occupational health concerns (eg, carpal tunnel syndrome) limit the overall utilization of this therapy. Therefore, we conducted a study to compare the overall effectiveness of CCPT to high-frequency chest wall compressions (HFCWC) applied via a vibratory vest. ⋯ This study was inadequately powered for the primary outcome of interest and hence we cannot make recommendations on the preferential use of HFCWC or CCPT for intubated and non-intubated adult patients. HFCWC was associated with statistically better comfort scores. (ClinicalTrials.gov registration NCT00717873.).