Figure 1

Occurrence of events after anaesthesia induction in horses that received only one bolus of S-ketamine. Time is expressed as median and 10%-25%-75%-90% interquartiles; dots represent the outsiders. Number of horses in which each event was registered is reported besides. T_palpebral: Time from anaesthesia induction until appearance of a brisk palpebral reflex; T_surgery: Time from anaesthesia induction until termination of the surgical procedure; T_movement: Time from anaesthesia induction until appearance of first movement; T_sternal: Time from anaesthesia induction until return to sternal position; T_standing: Time from anaesthesia induction until return to standing position.