Clonidine is known to impair cold defence mechanisms by decreasing thermore
gulatory thresholds. Thus, clonidine might contribute to perioperative hypo
thermia during minor paediatric surgery. This study was designed to investi
gate the influence of intravenous or epidural clonidine on perioperative co
re temperature in children. A total of 23 children undergoing minor inguina
l or genital surgery under combined general and caudal anaesthesia were ran
domly assigned to 3 groups: caudal clonidine (1-3 mu g kg(-1)), intravenous
clonidine (3 mu g kg(-1)) and a control group without clonidine. Neither c
audal nor intravenous application of clonidine significantly affected core
temperature. (C) 2000 Elsevier Science Ltd. All rights reserved.