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The purpose of this study is to determine pharmacodynamic interactions of propofol and dexmedetomidine,exploring the effect of dexmedetomidine on propofol unconsciousness median effective concentration (EC50).
64 cases were randomly divided into four groups, In each group, dexmedetomidine target plasma concentration are 0, 0.4, 0.6, 0.8 ng/ml. Dexmedetomidine administered 15min before target controlled infusion of propofol. The propofol infusion was started to provide a target effect-site concentration of 1.0ug/ml, and increased by 0.2ug/ml until loss of consciousness when the effect-site concentration and target effect-site concentration equilibrium.
Allocation: Randomized, Endpoint Classification: Pharmacokinetics/Dynamics Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
0.0ng/ml Dexmedetomidine, 0.4ng/ml Dexmedetomidine, 0.6ng/ml Dexmedetomidine, 0.8ng/ml Dexmedetomidine, Propofol
Guangzhou Military Region General Hospital, Department of Anesthesiology
Guangzhou General Hospital of Guangzhou Military Command
Published on BioPortfolio: 2016-05-20T11:23:22-0400
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A selective inhibitor of RECEPTORS, ADRENERGIC ALPHA-2 that has analgesic and sedative properties. MEDETOMIDINE is the other racemic form.
An agonist of RECEPTORS, ADRENERGIC ALPHA-2 that is used in veterinary medicine for its analgesic and sedative properties. It is the racemate of DEXMEDETOMIDINE.
An intravenous anesthetic agent which has the advantage of a very rapid onset after infusion or bolus injection plus a very short recovery period of a couple of minutes. (From Smith and Reynard, Textbook of Pharmacology, 1992, 1st ed, p206). Propofol has been used as ANTICONVULSANTS and ANTIEMETICS.
Rare and often fatal drug complication which affects patients undergoing long-term treatment with high doses of PROPOFOL. It is characterized by METABOLIC ACIDOSIS; HYPERLIPIDEMIA; RHABDOMYOLYSIS; cardiovascular CIRCULATORY COLLAPSE; CARDIAC FAILURE; and KIDNEY FAILURE.
A competitive histamine H2-receptor antagonist. Its main pharmacodynamic effect is the inhibition of gastric secretion.
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An anesthesiologist (US English) or anaesthetist (British English) is a physician trained in anesthesia and perioperative medicine. Anesthesiologists are physicians who provide medical care to patients in a wide variety of (usually acute) situations. ...