Journal of critical care
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Journal of critical care · Mar 1996
Partial liquid ventilation provides effective gas exchange in a large animal model.
The purpose of this study was to show the ability of partial liquid ventilation (PLV) to sustain gas exchange in normal large (50 to 70 kg) adult animals. ⋯ These data show that during PLV in this normal animal model, effective gas exchange is sustained and CT decreases with increasing perflubron dose.
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Journal of critical care · Mar 1996
Effect of alpha-adrenoreceptor stimulation on the diaphragmatic oxygen delivery-consumption relationship.
In the vascularly isolated canine hemidiaphragm, we tested the hypothesis that alpha-adrenoreceptor stimulation may influence diaphragmatic function and O2 extraction during reductions in O2 delivery (QO2di). ⋯ These results indicate that alpha-adrenoreceptor activation may increase the tension generated by the diaphragm as well as its oxygen consumption and oxygen extraction. Although this may be beneficial during moderate reductions in oxygen delivery, in more severe shock states, activation of these receptors by endogenous or exogenously administered catecholamines may hasten the development of delivery limitation of VO2di and compromise the ability to sustain ventilation.
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Journal of critical care · Dec 1995
Multicenter Study Comparative Study Clinical TrialThe influence of clinical study design on cost-effectiveness projections for the treatment of gram-negative sepsis with human anti-endotoxin antibody.
This study was performed to compare the effect of entry criteria, patient population, and study design on outcome and projected cost-effectiveness of human anti-endotoxin antibody (HA-1A). ⋯ Extrapolating cost-effectiveness from RCT-derived analyses to open-label usage may yield widely inaccurate projections because of only small differences in patient population and the drug administration protocol.
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The effective treatment of sepsis and septic shock has remained elusive despite intense research efforts. The tools of molecular biology have been applied to the problem of sepsis in an attempt to design more rational, directed therapy. Cellular interactions with invading microorganisms begin a series of stimulation events within the cell. ⋯ The measurement of cytokines is critically important to our understanding of their role in health and disease. Cytokines may be measured by either immunologic methods or biological assays. Molecular biology has made important contributions to our understanding of sepsis by precisely identifying some of the mediators and providing reagents for therapeutic use.