Korean Journal of Veterinary Research (대한수의학회지)

The Korean Society of Veterinary Science (대한수의학회)
권호 표지

Effects of anesthetics on resistive index of the medial long posterior ciliary artery and ophthalmic artery using color doppler imaging

  • Choi, Ho-jung (College of Veterinary Medicine, Chungnam National University) ;
  • Lee, Young-won (College of Veterinary Medicine, Chungnam National University) ;
  • Yoon, Jung-hee (College of Veterinary Medicine, Seoul National University) ;
  • Yeon, Seong-chan (College of Veterinary Medicine, Gyeongsang National University) ;
  • Lee, Hyo-jong (College of Veterinary Medicine, Gyeongsang National University) ;
  • Lee, Hee-chun (College of Veterinary Medicine, Gyeongsang National University)
  • Accepted : 2005.08.28
  • Published : 2005.09.22
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Abstract

Color Doppler imaging (CDI) was carried out to evaluate the anesthetics effect on ophthalmic circulation using CDI-derived resistive index (RI) values. CDI was preformed on 24 dogs, and RI values were calculated for the medial long posterior ciliary artery (mLPCA) and ophthalmic artery (OA) before and after administration of anesthetics. After administration of benoxinate or acepromazine, a significant change of the mLPCA RI was not found. But, a significant decrease of the RI following ketamine (p < 0.001) or xylazine (p < 0.01) administration could be observed as compared with the self-control. Mean RI value of OA also showed this same trend. Intraocular pressure was significantly decrease following benoxinate (p < 0.01), acepromazine (p < 0.01), and xylazine (p < 0.001) administration within normal range. The results suggest that some anesthetics influence on ophthalmic vascular resistance. Therefore, chemical restraint was carefully used in clinical application of CDI-derived RI measurement. Particularly, benoxinate and acepromazine is useful chemical restraint without a change of the ophthalmic vascular resistance.

Keywords

References

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