Critical care medicine
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Critical care medicine · Jan 1996
Randomized Controlled Trial Clinical TrialMagnesium repletion and its effect on potassium homeostasis in critically ill adults: results of a double-blind, randomized, controlled trial.
The aims of this study were to evaluate the safety and efficacy of magnesium replacement therapy and to determine its effect on potassium retention in hypokalemic, critically ill patients. ⋯ Magnesium sulfate administered according to the above regimen safety and significantly increases the circulating magnesium concentration. Despite greater urine magnesium losses in the treatment group, this group exhibited significantly better magnesium retention.
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Critical care medicine · Jan 1996
Single breath CO2 analysis: description and validation of a method.
To evaluate the performance of a newly developed single breath CO2 analysis station in measuring the airway deadspace in a lung model (study 1), and then to quantify the bias and precision of the physiologic deadspace measurement in a surfactant-depleted animal model (study 2). ⋯ Our initial experience with the single breath CO2 analysis station indicates that this device can reliably provide on-line evaluation of the single-breath CO2 waveform. In particular, estimation of the airway and physiologic deadspace under a variety of testing conditions was consistently within 5% of actual values. We feel that with further application and refinement of the technique, single breath CO2 analysis may provide a noninvasive, on-line monitor of changes in pulmonary blood flow.
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Critical care medicine · Jan 1996
Comment Letter Comparative StudyPropofol vs. midazolam for sedation.
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Critical care medicine · Jan 1996
Multicenter StudySimplified Therapeutic Intervention Scoring System: the TISS-28 items--results from a multicenter study.
To validate a simplified version of the Therapeutic Intervention Scoring System, the TISS-28, and to determine the association of TISS-28 with the time spent on scored and nonscored nursing activities. ⋯ The simplified TISS-28 explains 86% of the variation in TISS-76 and can therefore replace the original version in the clinical practice in the ICU. Per shift, a typical nurse is capable of delivering nursing activities equal to 46 TISS-28 points.
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Critical care medicine · Jan 1996
Respiratory and cardiac function in children after acute hypoxemic respiratory failure.
To examine the pulmonary and cardiac function of children who survived an episode of acute hypoxemic respiratory failure. ⋯ Although pediatric survivors of acute hypoxemic respiratory failure perceive neither a limitation in lifestyle nor chronic pulmonary morbidity, careful examination of the cardiopulmonary system demonstrates a significant number with abnormal chest radiographs and abnormalities in pulmonary function. These children require careful follow-up and may benefit from use of a bronchodilator.