Critical care medicine
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To evaluate the training of clinical staff in the use of interhospital transfer guidelines and to examine the underlying decision-making behavior in organizing patient transfers between hospitals. ⋯ Clinical staff can make informed and appropriate decisions by using standardized guidelines when organizing interhospital transfers.
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Critical care medicine · Apr 1996
Comparative StudyLidocaine attenuates the hypotensive and inflammatory responses to endotoxemia in rabbits.
To assess the effects of lidocaine on the hemodynamic and inflammatory responses to Escherichia coli endotoxemia in rabbits. ⋯ Lidocaine attenuated the hemodynamic and inflammatory responses to endotoxemia in rabbits. Findings suggest that lidocaine administration may prevent the development of hypotension and metabolic acidosis during endotoxemia.
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Critical care medicine · Apr 1996
Comparative StudyEffect of jet ventilation on heart failure: decreased afterload but negative response in left ventricular end-systolic pressure-volume function.
To examine the mechanism of cardiac assist with systolic jet ventilation, specifically effects on loading conditions and left ventricular pressure-volume function. Both systolic and diastolic jet ventilation were compared in the absence and presence of heart failure. ⋯ Jet ventilation did not decrease stroke volume in failing hearts because of the afterload-reducing benefit (decreased transmural left ventricular end-systolic pressure) of increased intrapleural pressure in dilated ventricles. Moreover, jet ventilation did not have positive effects on myocardial function and had negative effects on left ventricular elastance in the postjet ventilation period in both normal and failing hearts. Cardiac assist by jet ventilation was not cycle specific, suggesting no selective benefit of jet ventilation over conventional positive-pressure ventilation during heart failure. These studies demonstrate a negative inotropy associated with jet ventilation that, during heart failure, may compromise the general benefit of positive-pressure-mediated increases in intrapleural pressure.
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Critical care medicine · Apr 1996
Comparative StudyEffect of conventional mechanical ventilation and jet ventilation on airway pressure in dogs and plastic models with tracheal stenosis.
To evaluate the effect of jet ventilation on tracheal stenosis in dogs and plastic models. ⋯ The jet flow that struck the portion of the stenosed wall reversed direction, even during early expiration. Therefore, the expiration during jet ventilation was facilitated more by the reversed flow than by the expiration during conventional mechanical ventilation. This reversed flow may provide lower end-expiratory airway pressure at the poststenotic portion with jet ventilation than with conventional mechanical ventilation. We conclude that jet ventilation was a useful method of ventilation in cases with tracheal stenosis, especially nonfluid and short stenosis.
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To analyze the status of the teaching of critical care at the postgraduate and undergraduate levels in Europe. ⋯ The standardization of curriculum content on critical care medicine, the clear definition of competence (the combination of knowledge, attitudes, skills, and judgment necessary to practice) in medical schools, and better coordinated postgraduate training are needed to clarify an educational approach in the field. Practitioners of critical care medicine will have to participate actively on curriculum committees. The recognition of critical care medicine as a specialty or subspecialty and as an academic discipline will facilitate the achievement of a comprehensive critical care education program.