Apr 1, 1995

Premedication with midazolam in children. Effect of intranasal, rectal and oral routes on plasma midazolam concentrations

Anaesthesia
J M MalinovskyM Pinaud

Abstract

We report a study performed to compare the time and plasma drug concentrations necessary to achieve a similar state of sedation after midazolam premedication given by various routes in children of 2-5 years old. Children were randomly allocated to one of three groups to receive midazolam 0.2 mg.kg-1 given intranasally, 0.5 mg.kg-1 given orally or 0.3 mg.kg-1 given rectally. Sedation was measured regularly until venepuncture was possible in a cooperative child. At this time, a first blood sample was taken to measure plasma concentration, followed by another 10 min later. Anaesthesia consisted of intravenous propofol supplemented with regional analgesia. At recovery from anaesthesia, a third blood sample was taken. Adequate sedation occurred sooner (7.7, SD 2.4 min) with intranasal than oral (12.5, SD 4.9 min) or rectal (16.3, SD 4.2 min) midazolam. The initial blood levels were lower when the drug was given by the alimentary routes despite higher doses (146, SD 51 ng.ml-1 in 11.5, SD 3.9 min; 104, SD 34 ng.ml-1 in 21 +/- 6 min; and 93, SD 63 ng.ml-1 in 23.1, SD 3.5 min for the intra nasal, rectal and oral routes respectively). Duration of surgical procedures, and of propofol infusion, and recovery from anaesthesia was similar fo...Continue Reading

Mentioned in this Paper

ATP8A2 gene
IL17F gene
Absence of Pain Sensation
Respiratory Depression
Anesthesia, Intravenous
Venipuncture
Conscious Sedation
Anesthesiology
ATP8A2 wt Allele
Premedication

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