Critical care medicine
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Critical care medicine · Jan 1991
Randomized Controlled Trial Comparative Study Clinical TrialRinger's lactate with or without 3% dextran-60 as volume expanders during abdominal aortic surgery.
To compare a solution of 3% dextran-60 (D60) in Ringer's lactate (RL) with RL alone as maintenance fluids for abdominal aortic surgery. ⋯ A diluted colloid solution in Ringer's lactate is of significant value in maintaining intravascular volumes and hemodynamics during and after major operative procedures.
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Critical care medicine · Jan 1991
Randomized Controlled Trial Comparative Study Clinical TrialSingle versus double indicator dilution measurements of extravascular lung water.
To compare a simplified method of measuring extravascular lung water (EVLW) using only a single indicator (EVLW-SI) with the standard double indicator dilution technique (EVLW-DI). ⋯ Theoretically, neither injection of green dye nor blood withdrawal should be necessary during measurements of EVLW-SI, making it a simpler technique for bedside use than EVLW-DI. However, significant discrepancies exist between the two techniques. Some of this difference is apparently due to technical factors related to catheter design. In any case, we cannot recommend use of the single indicator dilution technique at present to estimate EVLW.
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Critical care medicine · Jan 1991
Randomized Controlled Trial Clinical TrialPediatric critical care cost containment: combined actuarial and clinical program.
To determine if providing patients' daily survival probabilities to physicians and nurses along with a short videotape on the measurement of survival probabilities and costs of pediatric intensive care would reduce resource use. ⋯ Reduction in pediatric intensive care resource use can occur from the combined effects of actuarial and clinical interventions.
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Critical care medicine · Jan 1991
Randomized Controlled Trial Clinical TrialMeasurement of minute ventilation in ventilator-dependent patients: need for standardization.
a) To determine the variation in methods used to measure minute ventilation (VE) in patients who receive mechanical ventilation; b) to determine the effect of supplemental oxygen on VE, respiratory rate (RR), and tidal volume (VT) measurements. ⋯ Measurements of VE in patients being considered for a weaning trial can result in significant oxygen desaturation if obtained during room air breathing, and the values obtained can significantly overestimate the patient's true ventilatory requirements, since most patients receive supplemental oxygen during a weaning trial. Standardized methods of measuring VE in critically ill patients need to be developed.
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Critical care medicine · Jan 1991
Comparative StudyEvaluation of performance characteristics of disposable bag-valve resuscitators.
To evaluate the performance characteristics of disposable bag-valve resuscitators. ⋯ While these DRs meet the minimum standards, they should be chosen carefully and evaluated before application in the clinical environment.