• S McKean, X Kochilas, R Kelleher, and M Dockery.
• Department of Otorhinolaryngology, Victoria Hospital, Kirkcaldy, Scotland. simon@jazzle.co.uk
• Clin Otolaryngol. 2006 Feb 1;31(1):36-40.

ObjectiveTo assess the effectiveness of intravenous steroids at induction of anaesthetic to reduce post-operative nausea and vomiting and pain after adult tonsillectomy.DesignProspective, double-blind, randomized, placebo controlled trial, with ethical approval, following Consolidated Standards of Reporting Trials guidelines.SettingDistrict General Hospital in Scotland, UK.ParticipantsSeventy-two adults between 16 and 70 years, American Association of Anaethetists (ASA) 1, listed for elective tonsillectomy.InterventionSingle dose of either 10 mg of dexamethasone or 2 mL of saline after induction with a consistent anaesthetic technique.Main Outcome MeasuresPatients filled in a visual analogue scale relating to pain and post-operative nausea and vomiting for the day of operation and 7 days after operation. The time to first ingestion of food and drink after operation was also noted.ResultsData completion rate of 64% (46 of 72 patients enrolled). Statistically significant relative decrease (62%P = 0.001) in the incidence of post-operative nausea and vomiting was seen in those treated with dexamethasone. Statistically significant relative decrease (23%P = 0.016) in post-operative pain scores for the day of operation was seen in those treated with dexamethasone. Significant decrease (17.5%, P < 0.001) in mean pain score for seven post-operative days was seen in those treated with dexamethasone. No adverse effects were seen.ConclusionsDexamethasone given as a single dose of 10 mg at induction of anaesthesia for adult tonsillectomy is an effective, safe and inexpensive method for reducing morbidity in adult tonsillectomy.

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