Critical care medicine
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Critical care medicine · Oct 1994
Randomized Controlled Trial Multicenter Study Comparative Study Clinical TrialSafety and efficacy of intravenous Carbicarb in patients undergoing surgery: comparison with sodium bicarbonate in the treatment of mild metabolic acidosis. SPI Research Group. Study of Perioperative Ischemia.
To compare the safety and efficacy of intravenous Carbicarb with intravenous sodium bicarbonate in well-oxygenated patients who developed metabolic acidosis while undergoing major surgery. Carbicarb is an equimolar solution of sodium bicarbonate and sodium carbonate (Na2CO3). It does not undergo significant breakdown to CO2 and H2O, nor does it increase CO2 concentrations to the same extent as does pure sodium bicarbonate. Because of these characteristics, Carbicarb may be a more suitable agent than bicarbonate in the treatment of metabolic acidosis. ⋯ Carbicarb corrects metabolic acidosis as well as sodium bicarbonate. However, the potential therapeutic advantage of Carbicarb remains to be determined, especially in patients with more severe metabolic acidosis.
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Critical care medicine · Oct 1994
Clinical Trial Controlled Clinical TrialGlucose content of tracheal aspirates: implications for the detection of tube feeding aspiration.
To determine, using a sensitive glucose assay, whether monitoring of tracheal aspirate glucose concentration could serve as a marker of aspiration of enteral feedings. ⋯ Tracheal secretions contain high glucose concentrations, both in enterally fed patients without evidence of aspiration pneumonitis and in nonenterally fed patients. The concentration of glucose in tracheal secretions appears to be determined, in part, by ambient extracellular glucose concentrations. We conclude that measurement of glucose in tracheal secretions is unlikely to be useful in monitoring for tube feeding aspiration in tracheally intubated, enterally fed patients.
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Critical care medicine · Oct 1994
Clinical Trial Controlled Clinical TrialCrystalloid infusion increases plasma hyaluronan.
To investigate the changes in plasma hyaluronan concentrations after intravenous infusion of crystalloid solution in healthy subjects. ⋯ Infusion of crystalloid solution increases plasma hyaluronan, probably through a washout of interstitial hyaluronan by way of increased lymph flow. The consequences of the interstitial loss of hyaluronan on tissue function are unknown.