title: Evaluation of extradural xylazine injection for caesarean operation in ovine dystocia cases.
abstract: Twenty-eight sheep suffering from dystocia, with complications including vaginal prolapse and emphysematous foetuses, were treated by caesarean operation. When tested by needle prick 30-40 min after injection, analgesia of the flank was present in 12 of 13 ewes and eight of nine ewes following either sacrococcygeal or lumbosacral extradural xylazine, respectively at a dose rate of 0.07 mg kg-1. Twelve of 13 ewes, which were ambulatory at the time of extradural injection, exhibited pelvic paresis in the interval before surgery. Vaginal prolapses associated with the dystocia in seven of 22 ewes which were replaced during surgery but not retained by suture, did not recur.
authors.affiliation: Department of Veterinary Clinical Studies, Royal (Dick) School of Veterinary Studies, Midlothian, Scotland, UK.
authors.forename: P R
authors.initials: PR
authors.lastname: Scott
authors.forename: M E
authors.initials: ME
authors.lastname: Gessert
mesh_terms: D016362:Analgesia, Obstetrical / Q000379:methods / Q000592:standards / Q000662:veterinary*; D000777:Anesthetics / Q000008:administration & dosage* / Q000592:standards; D000818:Animals; D002585:Cesarean Section / Q000662:veterinary*; D004305:Dose-Response Relationship, Drug; D004420:Dystocia / Q000150:complications / Q000601:surgery / Q000662:veterinary*; D005260:Female; D007267:Injections / Q000379:methods / Q000662:veterinary; D011247:Pregnancy; D011897:Random Allocation; D012756:Sheep; D012757:Sheep Diseases / Q000209:etiology / Q000601:surgery*; D014596:Uterine Prolapse / Q000209:etiology / Q000601:surgery / Q000662:veterinary; D014991:Xylazine / Q000008:administration & dosage* / Q000592:standards
chemical_list: D000777:Anesthetics; D014991:Xylazine