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ThesisItem Open Access TOTAL INTRAVENOUS ANAESTHESIA WITH PROPOFOL AND KETAMINE IN ATROPINE AND XYLAZINE PREMEDICATED DOGS(AAU, 2016) SAIKIA, BASANTA; Sarma, K.K.The study was conducted in eighteen clinical cases of dogs of either sex. The animals were randomly divided into three groups with six animals in each group. Atropine sulphate @ 0.04mg/kg b.wt. i.m. and xylazine HCl @ 0.5mg/kg b.wt. i.m. route were administered as premedicants in all the three groups. In group-I, propofol @ 5mg/kg body weight, in group-II, ketamine @ 5mg/kg body weight and in group-III, ketofol @ 4mg/kg body weight was administered intravenously for induction after 15 minutes of preanaesthetic administration. Surgical anaesthesia was maintained for 90 minutes in all three groups viz. group-I, group-II and group-III with propofol @ 2.5mg/kg. b.w., ketamine @ 2.5mg/kg b.wt. and ketofol @ 2mg/kg b.wt. respectively by intermittent bolus injection ( IBI) technique. Clinical studies like induction time, quality of induction, duration of analgesia, degree of analgesia, duration of recumbency and quality of recovery showed better results in ketofol group than propofol and ketamine group. Physiological parameters like rectal temperature, heart rate, respiratory rate, blood pressure and spO2 were evaluated before administration of anaesthetic agent (0 minute) then at 15, 30, 60 and 90 minutes during and after administration of anaesthetic agents. The heart rate initially increased and then decreased gradually towards pre-anaesthetic level in all the three groups. The respiratory rate initially decreased and then increased towards pre-anaesthetic level in all the three groups. Both diastolic pressure and systolic pressure remained in a comfortable zone in group-III animals whereas, high blood pressure was recorded in group-II animals and low blood pressure was recorded in group-I animals. Haemato-biochemical and hormonal changes were evaluated before administration of anaesthetic agent (0 minute) then at 15, 30, 60 and 90 minutes during and after administration of anaesthetic agents. The all thee anaesthetic protocols did not bring about any drastic change in the haematological parameters. In all the three groups, group-I, group –II and group-III, initial significant declination was observed in Hb, PCV, TEC which steadily returned to the pre- anaesthetic level at the end of the observation. The values of TLC, neutrophils, lymphocyte, monocyte and eosinophil count did not register any significant change throughout the experiment in all three groups. In biochemical parameters significant increased glucose, BUN, creatinine ALT, AST and GGT values were recorded in all the groups in early phase of observation then showed a declining trend towards the pre- anaesthetic level at the end of the experiment. The magnitude of increasing trend of glucose was higher whereas increasing trend of creatinine, BUN, ALT, AST and GGT was lesser in group-III than group-I and group-II animals. In all the groups, the LDH, sodium and chloride values insignificantly increased but values were found to be within the physiological limits. A decrease in serum potassium level was observed in all the groups but these values were within normal physiological limit. In hormonal parameters significant increased cortisol values were recorded in all the groups The cortisol values in group-III animals also increased with time but the magnitude of these changes were least compared to group-I and group-II animals. In the present study, triiodothyronine (T3) and thyroxine (T4) values showed a non-significant fluctuation trend within their physiological limits at different time interval of TIVA in all three groups. The cost of the anaesthesia was least only Rs. 4.68/kg in group-II followed by Rs. 8.30/kg in group-III animals. The cost of the anaesthesia was Rs. 20.02/kg in group-I animals which was found to be highest among the all three groups. Key words: Dog, Propofol, Ketamine, Ketofol, Xylazine, Atropine, TIVA