Reversal of sedation by prolonged infusion of flumazenil (Anexate, Ro 15-1788). 1988

A Bodenham, and G Brownlie, and J S Dixon, and G R Park
Department of Anaesthesia and Intensive Care, Addenbrooke's Hospital, Cambridge.

A 22-year-old male was involved in a road traffic accident and sustained multiple injuries. He received an infusion of midazolam to sedate him during a period of artificial ventilation. His conscious level remained depressed 36 hours after the infusion was discontinued but the sedation was completely reversed with flumazenil. An infusion was started because of the short duration of action of flumazenil, and continued for 8 days. The infusion was stopped seven times during this period and on each occasion except the last, his conscious level deteriorated but returned to normal when flumazenil was administered again. Plasma concentrations of midazolam and alpha-hydroxymidazolam were measured and found to be low during this period. Possible explanations for this finding are discussed.

UI MeSH Term Description Entries
D007262 Infusions, Intravenous The long-term (minutes to hours) administration of a fluid into the vein through venipuncture, either by letting the fluid flow by gravity or by pumping it. Drip Infusions,Intravenous Drip,Intravenous Infusions,Drip Infusion,Drip, Intravenous,Infusion, Drip,Infusion, Intravenous,Infusions, Drip,Intravenous Infusion
D008297 Male Males
D008874 Midazolam A short-acting hypnotic-sedative drug with anxiolytic and amnestic properties. It is used in dentistry, cardiac surgery, endoscopic procedures, as preanesthetic medication, and as an adjunct to local anesthesia. The short duration and cardiorespiratory stability makes it useful in poor-risk, elderly, and cardiac patients. It is water-soluble at pH less than 4 and lipid-soluble at physiological pH. Dormicum,Midazolam Hydrochloride,Midazolam Maleate,Ro 21-3981,Versed,Hydrochloride, Midazolam,Maleate, Midazolam,Ro 21 3981,Ro 213981
D005442 Flumazenil A potent benzodiazepine receptor antagonist. Since it reverses the sedative and other actions of benzodiazepines, it has been suggested as an antidote to benzodiazepine overdoses. Flumazepil,Anexate,Lanexat,Ro 15-1788,Romazicon,Ro 15 1788,Ro 151788
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor

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