Critical care medicine
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Critical care medicine · Apr 1998
Right ventricular overload causes the decrease in cardiac output after nitric oxide synthesis inhibition in endotoxemia.
To determine whether the decrease in cardiac output after nitric oxide synthase inhibition in endotoxemia is due to increased left ventricular afterload or right ventricular afterload. ⋯ The decrease in cardiac output after nitric oxide synthase inhibition in endotoxemia is due to increased right ventricular afterload and not to left ventricular afterload.
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Critical care medicine · Apr 1998
Comparative StudyUnderstanding articles comparing outcomes among intensive care units to rate quality of care. Evidence Based Medicine in Critical Care Group.
Comparisons of risk-adjusted outcomes among intensive care units (ICUs) is a relatively new but rapidly expanding area of ICU health services research. By investigating those factors that lead ICUs to have patient outcomes that differ from the average, the overall quality of care across ICUs may be improved. Our goal is to teach clinicians how to evaluate these types of articles. CLINICAL EXAMPLE: An article describing the development and application of an index used to assess the clinical performance and cost-effectiveness of 25 ICUs. ⋯ The potential for misinterpretation of outcome performance ratings may decrease if articles describing outcome differences are evaluated, using the criteria outlined in this article.
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Critical care medicine · Apr 1998
Comparative StudyTotal plasma antioxidant capacity is not always decreased in sepsis.
To compare total plasma antioxidant capacity and selected individual antioxidants in patients with varying degrees of severity of sepsis. ⋯ Although total plasma antioxidant capacity is decreased from normal levels in septic patients, an increase in some oxidants contributes to an increased total antioxidant capacity in septic shock patients.
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Critical care medicine · Apr 1998
Comparative StudyAccuracy of physiologic deadspace measurement in intubated pediatric patients using a metabolic monitor: comparison with the Douglas bag method.
To evaluate the accuracy of physiologic deadspace (VD/VT) measurement, using a metabolic monitor. ⋯ The VD/VT can be measured reliably and accurately in intubated pediatric patients using a metabolic monitor. The metabolic monitor method is a convenient and simple alternative to the standard Douglas bag method.