Antiemetic Effect of Dexamethasone in Dogs Sedated with Medetomidine

Medetomidine으로 진정시킨 개에서의 Dexamethaxone의 항구토 효과

  • Kang, Han-Sem (Department of Veterinary Surgery, College of Veterinary Medicine, Kyungpook National University) ;
  • Jang, Hwan-Soo (Department of Pharmacology, School of Medicine, Kyungpook National University) ;
  • Kwon, Young-Sam (Department of Veterinary Surgery, College of Veterinary Medicine, Kyungpook National University) ;
  • Jang, Kwang-Ho (Department of Veterinary Surgery, College of Veterinary Medicine, Kyungpook National University)
  • 강한샘 (경북대학교 수의과대학 수의외과학 교실) ;
  • 장환수 (경북대학교 의학전문대학원 약리학 교실) ;
  • 권영삼 (경북대학교 수의과대학 수의외과학 교실) ;
  • 장광호 (경북대학교 수의과대학 수의외과학 교실)
  • Published : 2009.12.31

Abstract

Antiemetic effect of dexamethasone in dogs sedated with medetomidine was evaluated. On the day of experiment, five minutes prior to medetomidine ($40\;{\mu}g$/kg, IM) injection, dexamethasone was administered intravenously at the doses of 0.25, 0.5 and 1.0 mg/kg. Control group was received at 0.1 ml/kg of saline instead of dexamethasone. The dose of 0.5 and 1.0 mg/kg of dexamethasone significantly reduced emetic episode. The degree of sedation determined by visual sedation scoring was not influenced by dexamethasone pretreatments. In addition, the values of complete blood counts and blood chemistry did not show significant changes and were within normal ranges before and the day after experiment. These results show that the doses of 0.5 and 1.0 mg/kg of dexamethasone are useful and safe method to prevent emetic episode inducing by medetomidine in dogs, without evidence of any clinically relevant influences.

Medetomidine으로 마취된 개에 대한 dexamethasone의 항구토 효과를 평가하였다. 실험 당일, medetomidine($40\;{\mu}g$/kg, IM)을 주사하기에 앞서 dexamethasone을 0.25, 0.5, 1.0 mg/kg의 용량으로 정맥주사하였다. 대조군에는 dexamethasone을 대신하여 식염수 0.1 ml/kg를 주사했다. Dexamethasone 0.5, 1.0 mg/kg의 용량에서 구토가 크게 감소되는 것이 관찰되었고, 시각적 마취 점수(visual sedation score)로 측정된 마취의 깊이 정도는 dexamethasone의 전처치에 의해 영향을 받지 않는 것으로 평가되었다. 또한, CBC와 혈액화학분석 수치는 특징적인 변화를 보이지 않았고 실험 전과 하루 후의 수치가 정상범위내에 있었다. 따라서, 본 연구를 통해 medetomidine투여로 유발되는 구토증상을 0.5, 1.0 mg/kg 용량의 dexamethasone이 임상적으로 영향을 끼치지 않으면서 안전하고 효과적으로 예방할 수 있다는 것을 알 수 있었다.

Keywords

References

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