Chest
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A prospective study of all unplanned adult extubations was conducted for 4 months period in four intensive care units (ICUs) of a community hospital. Our objective was to document the incidence of unplanned extubations, discern possible variables predictive of occurrence and outcome, and formulate preventive measures and guidelines for reintubation. ⋯ Our data suggested that self-extubation is relatively rare in our institution and that about half of self-extubated patients were reintubated. Staff vigilance, a proper weaning period, and the nasal method of intubation were some of the factors to which we attributed this low occurrence rate. However, a larger patient study population is required to show conclusively effective preventive measures and establish guidelines for reintubation.
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Work of breathing necessary to trigger a ventilator (WOBtr) was calculated during pressure support ventilation (PSV), and the effect of bias flow on WOBtr was evaluated. A spring-loaded bellows type lung model with two bellows placed in series was used to simulate spontaneous breathing. A Venturi mechanism of jet flow generated subatmospheric pressure inside the diaphragm bellows simulated inspiratory effort. ⋯ With bias flow, both triggering delay and WOBtr increased. An increase in bias flow at a given PS level resulted in both decreased pressure support time and tidal volume (VT). It is concluded that the bias flow system is not desirable for use during PSV.
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To learn about the status of junior faculty in the specialty of pulmonary diseases and about their attitudes concerning their future in academic medicine. ⋯ The success of junior faculty is important to the success of academic medicine. More attention should be paid to ensuring protected continuous time for research, educating about promotion, and improving funding opportunities.