The use of colour Doppler imaging to determine the effects of administration of butorphanol, medetomidine and ketamine on indices of feline ocular impedance

T. Vrbovska, L. Hornakova, Z. Drahovska, M. Kozar and A. Trbolova
Additional contact information
L. Hornakova: Small Animals Clinic, University of Veterinary Medicine and Pharmacy in Kosice, Kosice, Slovak Republic
Z. Drahovska: Small Animals Clinic, University of Veterinary Medicine and Pharmacy in Kosice, Kosice, Slovak Republic
M. Kozar: Small Animals Clinic, University of Veterinary Medicine and Pharmacy in Kosice, Kosice, Slovak Republic
A. Trbolova: Small Animals Clinic, University of Veterinary Medicine and Pharmacy in Kosice, Kosice, Slovak Republic

Veterinární medicína, 2017, vol. 62, issue 1, 35-40

Abstract: Doppler impedance indices, such as the resistive index (RI) and pulsatility index (PI), are commonly used to characterise resistance to the flow in the vascular system. Chemical restraint can potentially affect these indices, although in some patients such restraint is necessary before ultrasonographic examination. The objective of this study was to compare ocular vascular velocity parameters, measured using Doppler imaging, in healthy conscious cats and in cats after administration of a combination of anaesthetics (butorphanol, medetomidine and ketamine). Twelve healthy cats of different breeds and both sexes were studied using Doppler imaging. The long posterior ciliary arteries in both eyes were examined. Mean comparison tests (paired and unpaired t-test) were used to determine whether any significant differences existed between right and left ocular indices and between sexes. A correlation study was applied between RI, PI and body weight. There were no significant differences in RI and PI between left and right eyes. Values also did not significantly differ among males and females. The RI and PI in long posterior ciliary arteries of cats anaesthetised with butorphanol, medetomidine and ketamine were significantly lower than those of healthy conscious cats. There was no correlation between impedance indices and body weight.

Keywords: anaesthesia; cat; eye; posterior ciliary artery; resistive index; pulsatility index (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://vetmed.agriculturejournals.cz/doi/10.17221/77/2016-VETMED.html (text/html)
http://vetmed.agriculturejournals.cz/doi/10.17221/77/2016-VETMED.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlvet:v:62:y:2017:i:1:id:77-2016-vetmed

DOI: 10.17221/77/2016-VETMED

Access Statistics for this article

Veterinární medicína is currently edited by Ing. Helena Smolová Ph.D.

More articles in Veterinární medicína from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().