[
1. Acosta A.D, Gomar C., Correa-Natalini C., Bopp S., Polydoro A., Sala-Blanch X.: Analgesic effects of epidurally administered levogyral ketamine alone or in combination with morphine on intraoperative and postoperative pain in dogs undergoing ovariohysterectomy. Am J Vet Res 2005, 66, 54-61.10.2460/ajvr.2005.66.5415691036
]Search in Google Scholar
[
2. Adachi H., Inagaki Y., Okazaki N., Ishibe Y.: Racemic ketamine and s(+)-ketamine concentrations in cerebrospinal fluid after epidural and intravenous administration in rabbits. Yonago Acta Med 2005, 48, 33-40.
]Search in Google Scholar
[
3. Atalan G., Demirkan İ., Günes V., Cihan M., Celebi F., Citil M.: Comparison of xylazine + ketamine-HCL anaesthetic agents with acepromazine + butorphanol + ketamine combinations for their clinical and cardiorespiratory effects in dogs. J Turkish Vet Surg 2002, 8, 35-40.
]Search in Google Scholar
[
4. Borgbjerg F.M., Svensson B.A., Frigast C., Gordh T.: Histopathology after repeated intrathecal injections of preservative-free ketamine in the rabbit: a light and electron microscopic examination. Anesth Analg 1994, 79, 105-111.10.1213/00000539-199407000-000208010418
]Search in Google Scholar
[
5. Blue J.T., Short C.E.: Preanesthetic evaluation and clinical pathology. In: Principles and Practice ofVeterinary Anesthesia, edited by Short C.E, Williams & Wilkins, Baltimore 1987, pp. 3-7.
]Search in Google Scholar
[
6. El Shobary H.M., Sonbul Z.M., Schricker T.P.: Epidural ketamine for postoperative analgesia in the elderly. M E J Anesth 2008, 19, 1369-1378.
]Search in Google Scholar
[
7. Fridericia L.S.: Die systolendauer im electrocardiogramm bei normalen menchen und bei herzkranken. Acta Med Scand 1920, 53, 469-486.10.1111/j.0954-6820.1920.tb18266.x
]Search in Google Scholar
[
8. Govindan K., Krishnani R., Kaufman M.P., Michael R., Fogler R.J., Gintautus J.: Intrathecal ketamine in surgeries for lower abdomen and lower extremites. Proc Pharmacol Soc 2001, 44, 197-199.
]Search in Google Scholar
[
9. Hodgson P.S., Neal J.M., Pollock J.E., Liu S.S.: The neurotoxicity of drugs given intrathecally (spinal). Anesth Analg 1999, 88, 797-809.10.1213/00000539-199904000-00023
]Search in Google Scholar
[
10. Iida H., Dohi S., Tanahashi T., Watanabe Y., Takenaka M.: Spinal conduction block by intrathecal ketamine in dogs. Anesth Analg 1997, 85, 106-10.10.1097/00000539-199707000-000199212131
]Search in Google Scholar
[
11. Kacar C., Ozaydin I., Oral H., Kilic E., Gurbulak K., Aksoy O.: Intrathecal slow infusion of isobaric bupivacaine HCl in low-dose for ovariohysterectomy in dogs. Bull Vet Inst Pulawy 2007, 51, 89-92.
]Search in Google Scholar
[
12. Kamiloglu, A., Atalan G., Ozturk S., Kilic E.: Epidural injection of ketamine hydrocloride for perineal analgesia in cattle. Ir Vet J 2003, 56, 514-516.
]Search in Google Scholar
[
13. Kathirvel S., Sadhasivam S., Saxena A., Kanan T.R., Ganjoo P.: Effects of intrathecal ketamine added to bupivacaine for spinal anaesthesia. Anaesthesia 2000, 55, 899-910.10.1046/j.1365-2044.2000.01472.x10947756
]Search in Google Scholar
[
14. Koc Y., Kul M., Alkan F., Ogurtan Z.: The effects of midazolam-ketamine and xylazine-ketamine on arterial blood pressure and blood gases in dogs. Eurasian J Vet Sci 2002, 18, 57-62.
]Search in Google Scholar
[
15. Kohrs R., Durieux M.E.: Ketamine: teaching an old drug new tricks. Anesth Analg 1998, 87, 1186-1193.10.1213/00000539-199811000-00039
]Search in Google Scholar
[
16. Lee I., Yoshiuchi T., Yamagishi N., Oboshi K., Ayukawa Y., Sasaki N., Yamada H.: Analgesic effect of caudal epidural ketamine in cattle. J Vet Sci 2003, 4, 261-264.10.4142/jvs.2003.4.3.261
]Search in Google Scholar
[
17. Lee I.O., Lee I.H., Lee K.C.: Pre-versus post-formalin effects of intrathecal ketamine on spinal fos-like immunoreactivity in rats. Indian J Med Res 2004, 120, 527-533.
]Search in Google Scholar
[
18. Lizarraga I., Chambers J.P., Johnson C.B.: Prevention of N-methyl-d-aspartate-induced mechanical nociception by intrathecal administration of ketoprofen and ketamine in sheep. Anesth Analg 2008, 107, 2061-2067.10.1213/ane.0b013e318187ac0619020159
]Search in Google Scholar
[
19. Malinovsky J.M., Lepage J.Y., Cozian A., Mussini J.M., Pinaudt M., Souron R.: Is ketamine or its preservative responsible for neurotoxicity in the rabbit? Anesthesiology 1993, 78, 109-115.10.1097/00000542-199301000-000168424543
]Search in Google Scholar
[
20. Miyamoto H., Saito Y., Kirihara Y., Hara K., Sakura S., Kosaka Y.: Spinal coadministration of ketamine reduces the development of tolerance to visceral as well as somatic antinociception during spinal morphine infusion. Anesth Analg 2000, 90, 136-141.10.1097/00000539-200001000-00030
]Search in Google Scholar
[
21. Ozaydin I., Kilic E.: Lumbosacral intrathecal anaesthesia with isobaric bupivacaine in cattle. Indian Vet J 2003, 80, 540-542.
]Search in Google Scholar
[
22. Reich D.L., Silvay G.: Ketamine: an update on the first twenty-five years of clinical experience. Can J Anaesth 1989, 36, 186-197.10.1007/BF03011442
]Search in Google Scholar
[
23. Samantaray A., Rao M.H.: Evaluation of midazolam as an additive to intrathecal ketamine. J Anaesth Clin Pharmacol, 2006, 22, 363-369.
]Search in Google Scholar
[
24. Schuszler L., Igna C., Sala A., Brudiu I., Sabau M., Dascalu R.: Intraoperative analgesic effect of butarphanol for ovariohysterectomy in bitches: a dose titration study. Lucrari Ştiintifice Med Vet 2009, 2, 160-163.
]Search in Google Scholar
[
25. Slingsby L.S., Waterman-Pearson A.E.: The postoperative analgesic effects of ketamine after canine ovariohysterectomy-a comparison between pre-or postoperative administration. Res Vet Sci 2000, 69, 147-152.10.1053/rvsc.2000.0406
]Search in Google Scholar
[
26. Vranken J.H., Troost D., Haan P., Pennings F.A., Van der Vegt M.H., Dijkgraaf M.G.W., Hollmann M.W.: Severe toxic damage to the rabbit spinal cord after intrathecal administration of preservative-free s(+)- ketamine. Anesthesiology 2006, 105, 813-818.10.1097/00000542-200610000-00028
]Search in Google Scholar
[
27. Yayla S., Kilic E.: The comparison of clinical, histopathological and some hemodynamic effects of spinal anesthesia applied in dogs through bupivacaine HCl and ropivacaine HCl in two different concentrations. Kafkas Univ Vet Fak Derg 2010, 16, 835-840.
]Search in Google Scholar
[
28. Torske K.E., Dyson D.H.: Epidural analgesia and anesthesia. Vet Clin North Am Small Anim Pract 2000, 30, 859-874.10.1016/S0195-5616(08)70011-1
]Search in Google Scholar
