Clinico-biochemical study on different pre-anesthetic drugs combined with propofol for neutering dogs

Abstract

The objective of present study was to select the best pre-anesthetic to be used in combination with propofol for neutering dogs. A prospective randomized study was conducted on 18 clinical cases of mongrel dogs admitted for neutering were subjected in to three groups (n=6). In group A (xylazine @ 2.2 mg/kg), group B (diazepam@ 0.25 mg/kg) and group C (medetomidine @ 40 µg/kg body weight), were injected intramuscular as preanesthetics. After 3-5 minutes of pre-anesthetic, the propofol injection @ 6 mg/kg of body weight was administered intravenous as anesthetic drug in all three groups. Analgesia was tested by the presence or absence of following reflexes - tail pricking, toes pinch, pedal reflex and patellar reflex. Rapid onset (9.13 ± 1.41 minutes) and long duration (59.67± 5.50 minutes) of analgesia was observed in group C compared other groups (onset 13.661±1.72 A, 20.16 ± 1.75 B minutes) and duration of analgesia (48.56 ± 4.61 A and 40.66± 5.46 B minutes). CBC, ALT, AST, ALP and blood urea nitrogen values were non-significantly (P e” 0.5) same within and between all three groups. There was significant (P d” 0.5) increase in ALT, AST, ALP, BUN and serum creatinine in group B at 24 hours interval. The results of our study showed that there was non significant decrease (P e” 0.5) in Hb and total erythrocytes count while non-significant increase (P e” 0.5) in total leukocyte count was noted in all three groups. The results showed that Medetomidine HCl in combination with propofol produce, rapid onset, and long duration of analgesia, with rapid and smooth recovery and no effects on haematological parameters of dogs.