Department of Surgery and Radiology, Bombay Veterinary College, Parel, Mumbai-12 (MS)
Karnataka Veterinary, Animal and Fisheries Sciences University, Bidar-585 401 (Karnataka)
A clinical study on epidural anaesthesia produced by bupivacaine hydrochloride, xylazine hydrochloride and bupivacaine-xylazine was conducted on 18 dogs presented for different surgeries. The dogs were randomly divided into 3 groups of 6 each. Epidural analgesia was induced using bupivacaine hydrochloride (2 mg/kg) in group-I, xylazine hydrochloride (1 mg/kg) in group-II and xylazine hydrochloride (0.5 mg/kg) and bupivacaine hydrochloride (1 mg/kg) in group-III by injecting into the lumbosacral space. A significant reduction in heart rate and rectal temperature was recorded in all groups but reduction was more in groups II and III than group I. Respiratory rate showed a significant decrease in groups II and III; however, no significant change was noted in group I. A significant fall in mean systolic blood pressure from 5–60 min of analgesia was seen in group III, whereas no significant alterations were recorded in group I. A progressive and irregular decrease in mean diastolic blood pressure was recorded during analgesia in groups I and II, however, no significant change was recorded in group III.
