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Comparison of ropivacaine with a combination of ropivacaine and fentanyl for the caudal epidural anaesthesia of mares
  1. S. Ganidagli, MD1,
  2. H. Cetin, VetMed, PhD2,
  3. H. S. Biricik3 and
  4. I. Cimtay4
  1. 1 Department of Anaesthesiology and Reanimation, School of Medicine
  2. 2 Department of Obstetrics and Gynaecology
  3. 3 Department of Surgery
  4. 4 Department of Internal Medicine, Faculty of Veterinary Medicine, Harran University, 63100 Sanliurfa, Turkey


Two groups of six mares aged from eight to 18 years were anaesthetised by caudal epidural injections of ropivacaine (0.5 per cent, 0.1 mg/kg) or a combination of ripovacaine (0.08 mg/kg) and fentanyl (100 μg) in a randomised study. The onset of anaesthesia was significantly more rapid (P<0.001) and it lasted significantly longer (P<0.001) in the group anaesthetised with the combination of drugs. The surgical comfort scores of the group anaesthetised with the combination were higher than those of the group anaesthetised with ropivacaine alone (P<0.001), and the quality of intraoperative analgesia, as assessed by the surgeon, was significantly improved. There were no differences between the groups in their average scores for the levels of ataxia and sedation, in their behaviour, or in the incidence of side effects.

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