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Sedative and analgesic effects of medetomidine in beagle dogs infected and uninfected with heartworm
Venugopalan C.S. Holmes E.P. Crawford M.P. Kearney M.J. Fucci V. 《Veterinary research communications》1998,22(2):97-106
The sedative and analgesic effects of medetomidine were evaluated in heartworm-infected (HW+) and uninfected (HW–) beagle dogs by intravenous (IV) and intramuscular (IM) administration of 30 µg/kg and 40 µg/kg doses, respectively. Posture, response to noise and the pedal reflex were monitored. A procedure for mock radiographic positioning was performed to evaluate its overall clinical use. Observation times were 0, 15, 30, 60, 90, 120 and 180 min. In addition, the times from injection until the dog could not stand on its feet (down time), from lateral to sternal recumbency (sternal recumbency time), and from sternal recumbency to rising again (rising time) were also noted.Medetomidine produced rapid sedation and analgesia by both routes. Down times for the IM and IV routes were similar, which verified the manufacturer's recommended doses. The HW+ dogs had shorter down times, probably owing to increased blood flow to the brain caused by adrenergic alpha-2 activity. Sternal recumbency and rising times did not differ between the groups, suggesting a similar metabolism. Sedation and analgesia were adequate for performing the procedure in all dogs. HW– dogs showed less resistance to handling during the procedure than HW+ dogs. Overall, medetomidine seems to be a suitable agent for short-term chemical restraint in dogs, even with subclinical heartworm infestation. 相似文献
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V Fucci W E Monroe D H Riedesel L L Jackson 《Journal of the American Veterinary Medical Association》1986,188(2):191-192
Pentobarbital intoxication in a 5-year-old female Samoyed was confirmed by the finding of a high concentration of the drug in serum. The dog apparently had consumed one of her pups, which had been euthanatized the day before with a 26% sodium pentobarbital solution. She was admitted in a condition consistent with light general anesthesia. The dog recovered after gastric lavage supportive therapy, and the administration of an alkalinizing solution to hasten drug excretion. This case demonstrates the hazards associated with indiscriminate disposal of carcasses containing large amounts of euthanasia solution. 相似文献
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