British Journal of Anaesthesia, 1994, Vol. 72, No. 6 694-696
© 1994 The Board of Management and Trustees of the British Journal of Anaesthesia
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Lack of anxiolytic effect of diazepam in pre-anaesthetic medication
Instituto de Investigaciones Farmacológicas CONICET, Junin 956 5° P, Capital Federal, Argentina
Hospital de Agudos José Maria Ramos Mejia, Servicio de Anestesia Urquiza 609, Capita] Federal, Argentina
Instituto de Biologia Celular, Facultad de Medicina, Universidad de Buenos Aires Paraguay 2151, 3er. Piso, Buenos Aires, Argentina
In 30 female patients undergoing elective cholecystectomy, we have compared the anxiolytic effect of diazepam 10 mg with placebo, using measurements of cardiovascular (arterial pressure and heart rate), biochemical (plasma concentrations of noradrenaline, adrenaline, cortisol and dopamine ß-hydroxylase), subjective (visual analogue scale) and behavioural (Hamilton anxiety test) variables. Pretreatment evaluation was carried out the day before surgery and post-treatment examination was performed 1.52 h after oral administration of premedication, immediately before transfer of patients to the operating room. We found that diazepam 10 mg had no significant effect on any of the measured variables.