Intensive care medicine
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Intensive care medicine · Jan 2000
S-Methylisothiourea sulfate improves renal, but not hepatic dysfunction in canine endotoxic shock model.
Excess production of nitric oxide (NO) by inducible NO synthase (iNOS) has been implicated in the pathophysiology of septic shock. This study was designed to see whether S-methylisothiourea sulfate (SMT), a selective inhibitor for iNOS, prevents cardiovascular changes and multiple organ damage in the canine endotoxic shock model. ⋯ These findings show that SMT improves renal, but not hepatic dysfunction, in dogs with endotoxic shock, suggesting that iNOS-derived NO plays differential roles in sepsis-associated multiple organ dysfunction.
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Intensive care medicine · Jan 2000
Randomized Controlled Trial Multicenter Study Comparative Study Clinical TrialCation metabolism during propofol sedation with and without EDTA in patients with impaired renal function.
To compare the effects of propofol with and without disodium edetate (EDTA) on cation metabolism in intensive care unit (ICU) patients with renal insufficiency who received propofol or propofol plus EDTA (propofol EDTA) for sedation and mechanical ventilation. ⋯ The results of this study suggest that adding EDTA to propofol does not adversely affect cation homeostasis or renal function when used for sedation of ICU patients with renal insufficiency. Although EDTA levels increased over time from baseline levels in patients with renal insufficiency who receive propofol EDTA, this increase does not appear to be clinically significant, and EDTA levels return to below baseline levels within 48 hours of discontinuing the propofol EDTA infusion. The efficacy of propofol with and without EDTA also appears comparable in these patients.
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Intensive care medicine · Jan 2000
Randomized Controlled Trial Multicenter Study Comparative Study Clinical TrialSafety and efficacy of propofol with EDTA when used for sedation of surgical intensive care unit patients.
To compare propofol with disodium edetate (EDTA) and propofol without EDTAwhen used for the sedation of critically ill surgical intensive care unit (ICU) patients. ⋯ The propofol EDTA formulation had no effect on calcium or magnesium homeostasis, renal function, or sedation efficacy compared with propofol alone when used for sedation in critically ill surgical ICU patients. There was a significant decrease in mortality in the propofol EDTA group compared with the propofol group. Further investigations are needed to validate this survival benefit and elucidate a possible mechanism.
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Intensive care medicine · Jan 2000
Randomized Controlled Trial Multicenter Study Comparative Study Clinical TrialEffects of propofol containing EDTA on mineral metabolism in medical ICU patients with pulmonary dysfunction.
To determine whether the addition of disodium edetate (EDTA) to propofol significantly alters mineral metabolism, adverse events, and outcome in critically ill medical patients with acute pulmonary dysfunction. ⋯ The addition of EDTA to propofol does not alter calcium and magnesium homeostasis in critically ill patients with acute pulmonary dysfunction. The reason for the elevation in PTH concentrations in such patients is not known.
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Intensive care medicine · Jan 2000
Randomized Controlled Trial Multicenter Study Comparative Study Clinical TrialTrace element homeostasis during continuous sedation with propofol containing EDTA versus other sedatives in critically ill patients.
To evaluate changes in serum and urinary zinc, cobalt, copper, iron, and calcium concentrations in critically ill patients receiving propofol containing disodium edetate (disodium ethylenediaminetetraacetic acid [EDTA]) versus sedative agents without EDTA. ⋯ This study showed that critical illness is associated with increased urinary losses of zinc, copper, and iron. Propofol EDTA-treated patients had greater urinary losses of zinc and iron and lower serum zinc concentrations compared with the non-EDTA sedative group. No adverse events indicative of trace metal deficiency were observed in either group. The clinical significance of trace metal losses during critical illness is unclear and requires further study.