Cardiopulmonary effects and anaesthesia recovery quality in horses anaesthetized with isoflurane and low-dose S-ketamine or medetomidine infusions.

Objectives: To evaluate cardiopulmonary effects and anaesthesia recovery quality in horses anaesthetized with isoflurane receiving medetomidine or S-ketamine infusions.

Study Design: Randomized, blinded, prospective clinical trial.

Animals: Fifty horses undergoing elective surgery.

Evaluation of anesthesia recovery quality after low-dose racemic or S-ketamine infusions during anesthesia with isoflurane in horses.

Objective: To compare anesthesia recovery quality after racemic (R-/S-) or S-ketamine infusions during isoflurane anesthesia in horses.

Animals: 10 horses undergoing arthroscopy.

Procedures: After administration of xylazine for sedation, horses (n = 5/group) received R-/S-ketamine (2.