Comparative study between target-controlled-infusion and continuous-infusion anesthesia in dogs treated with methotrimeprazine and treated with propofol and remifentanil.
OBJECTIVE
To compare two propofol infusion techniques in bitches subjected to ovary histerectomy by estimating the efficiency of the propofol target-dose, evaluating the cardiorespiratory and hemogasimetric attributes, and the bispectral scale index (BIS) as well as the recovery period characteristics.


METHODS
Twenty anesthetized bitches were divided into two groups of 10 each (G1, G2). Animals of G1 were pre-treated with methotrimeprazine and anesthetized with target-controlled propofol infusion by means of a Harvard infusion pump combined to remifentanil through a syringe pump.


RESULTS
Bradycardia and light hypotension, hemogasimetric and respiratory stability besides a good myorelaxation, more evident during continuous infusion and good hypnosis.


CONCLUSIONS
Dosis used in both techniques, after methotrimeprazine pre-treatment and combined to the opioid, were efficient for the surgery. The target-controlled anesthesia required a smaller anesthetic consumption (propofol) with faster recovery periods.
Hatschbach
Eduardo
E
Faculty of Medicine of Botucatu, UNESP, São Paulo, Brazil.
Silva
Fernando do Carmo
Fdo C
Beier
Suzane Lílian
SL
Lima
Alfredo Feio da Maia
AF
Massone
Flávio
F
D018712:Analgesics, Non-Narcotic / Q000008:administration & dosage*; D000701:Analgesics, Opioid / Q000008:administration & dosage; D000771:Anesthesia, Intravenous / Q000379:methods*; D019162:Anesthetics, Combined / Q000008:administration & dosage*; D018686:Anesthetics, Intravenous / Q000008:administration & dosage*; D000818:Animals; D004285:Dogs; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006993:Hypnotics and Sedatives / Q000008:administration & dosage; D007260:Infusion Pumps; D008728:Methotrimeprazine / Q000008:administration & dosage; D010052:Ovariectomy; D010880:Piperidines / Q000008:administration & dosage; D015742:Propofol / Q000008:administration & dosage; D011897:Random Allocation; D000077208:Remifentanil; D012119:Respiration / Q000187:drug effects
D018712:Analgesics, Non-Narcotic; D000701:Analgesics, Opioid; D019162:Anesthetics, Combined; D018686:Anesthetics, Intravenous; D006993:Hypnotics and Sedatives; D010880:Piperidines; D008728:Methotrimeprazine; D000077208:Remifentanil; D015742:Propofol