EYE ENUCLEATION IN EUROPEAN BISON. CLINICAL CASE
https://doi.org/10.25690/VETPAT.2021.73.75.010
Abstract
Indications for enucleation of the eye in animals, as a rule, include chronic endophthalmitis or panophthalmitis, glaucoma leading to hydrophthalmos and buphthalmos, glaucoma-related retinal and optic nerve damage, intraocular neoplasms, and trauma leading to irreversible damage to the eyeball. In this case, the cause of enucleation in a female bison was the extreme degree of buphthalmos with destruction of the eyeball, as a complication of the postponed moraxellosis. The planning of the operation relied on a technique developed for cattle. The surgical procedure consisted of transconjunctival enucleation of the eyeball and lacrimal glands. At the same time, the anatomical feature of the periorbital region in bison were taken into account, in particular, the orbital edges of the frontal, lacrimal and zygomatic bones increased in comparison with cattle, which made it dificult to extract the eye. The sugery was carried out in the in the field conditions. Immobility and general anesthesia wereperformed with a combination of Ketamine and Medetomidine using a DAN-INJECT injection rifle. atipamezole was used to interrupt anesthesia. Local anesthesia was performed with 2 % lidocaine using retrobulbar block. As a systemic antibiotic therapy, Draxin injected were used twice with an interval of 10 days. Complications of anesthesia were regurgitation and tympania. Intraoperative complication was bleeding, which was stopped by ligating large vessels and tamponing small vessels with 0.1 % adrenaline solution. Also, during the extraction of the eye, one had to fear excessive tension on the optic nerve, which immediately caused bradycardia. There were no post-sugery complications. No additional immobilization was required for wound care.
References
1. Доцев А. В. Исследование аллелофонда и генетической структуры российской популяции зубров (Bison bonasus) кавказско-белвежской линии / А. В. Доцев, П. В. Аксенова, В. В. Волкова, В. Р. Харзинова, О. В. Костюнина, Р. А. Мнацеканов, Н. А. Зиновьева // Экологическая генетика. - 2017. - Т. 15. - № 2. - С. 4-10
2. Костюнина О. В. Генетическое разнообразие российской популяции европейского зубра (Bi-son bonasus) / О. В. Костюнина, В. В. Волкова, И. И. Землянко, П. В. Аксенова и др. // Актуальная биотехнология. - 2018. - № 3 (26). - С. 236-238
3. Kostyunina O. V.Comparative genetic characteristics of the russian and belarusian populations of wi-sent (Bison bonasus), north american bison (Bison bison) and cattle (Bos taurus) / O. V. Kostyunina A. V. Dotsev, V. V. Volkova, M. S. Fornara [et all.] // Cytology and Genetics. - 2020. - Т. 54. - № 2. - С. 116-123.
4. Ali M. M. Ocular Field Surgery in Ruminants / M. M. Ali, M. A. Sadan, A. Ibrahim // Volume 2015 (2015), Article ID 709104, International Journal of Veterinary Medicine: Research & Reports, 8 pages, DOI: 10.5171/2015.709104
5. Schulz K. L. Bovine enucleation: A retrospective study of 53 cases (1998-2006) / K. L. Schulz, D. E. Anderson // Can. Vet. J. Jun 2010; 51(6): 611-614
6. Hirsbrunner G. Cancer eye in cattle: 21 cases (1990-1996) / G. Hirsbrunner, M. Ebeid, R. Eicher // Schweiz Arch Tierheilkd. (1998) 140:149-155
7. Цибизова Е. Л. Динамика и причины смертности зубров (Bison bonasus) в питомнике Окского государственного природного биосферного заповедника / Е. Л. Цибизова, П. В. Аксенова, А. М. Ермаков // Ветеринария. - 2015. - № 6. - С. 13-17
8. Аксенова П. В. Встречаемость и эпизоотические особенности заболеваний зубров паразитарной этиологии / П. В. Аксенова // Ветеринарная патология. - 2015. - № 1 (51). - С. 28-39
9. Аксенова П. В. Ветеринария зубров. Практическое руководство / П. В. Аксенова. - М.: Всемирный фонд дикой природы (WWF), 2020. - 224 с
10. Аксенова П. В. Болезни зубров (Bison bonasus): Встречаемость и эпизоотические особенности заболеваний зубров бактериальной этиологии / П. В. Аксенова // Ветеринарная патология. - 2014. - № 2 (48). - С. 51-63
11. Аксенова П. В. Инфекционный кератоконъюнктивит у зубров (Bison bonasus) / П. В. Аксенова // Ветеринарная патология. - 2020. - № 2 (72). - С. 68-76
12. Potter T. Clinical: Enucleation of the bovine eye. UK Vet. - 2007. - Vol. 12. - N 5
13. Vermunt J. Transpalpebral exenteration in cat-tle. Vet Q. 1984; 6:46-48
14. Аксенова П. В. Риск развития постанестезионной миопатии у зубров / П. В. Аксенова // Ветеринарная патология. - 2018. - № 3 (65). - С. 52-60
Review
For citations:
Aksenova P.V. EYE ENUCLEATION IN EUROPEAN BISON. CLINICAL CASE. Russian Journal of Veterinary Pathology. 2021;(4):57-61. (In Russ.) https://doi.org/10.25690/VETPAT.2021.73.75.010
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