Honkavaara P, Saarnivaara L, Klemola U M
Department of Anaesthesia, University of Helsinki, Finland.
Br J Anaesth. 1995 Jun;74(6):647-50. doi: 10.1093/bja/74.6.647.
In a double-blind, randomized study, we have compared the efficacy of transdermal hyoscine with placebo in the reduction of nausea and vomiting in 50 patients, ASA I-II, after surgical correction of prominent ears under general anaesthesia. In the placebo group, 28%, 4% and 48% of patients suffered nausea, retching and vomiting, respectively, during the first 24 h after anaesthesia. The corresponding values in the hyoscine group were 12%, 0% and 16% (P < 0.01). In the placebo group more patients (48%) needed droperidol as an antiemetic compared with the hyoscine group (16%; P < 0.05). There was significantly more sedation in the hyoscine group.