Evaluation of Biespectral Index in Dogs Anesthetized With Continuous Infusion of Propofol Associated or Not To Nitrous Oxide
World Small Animal Veterinary Association World Congress Proceedings, 2005
C.T. Nishimori, DMV, MSc; N. Nunes, DMV, MSc, PhD; D.P. Paula, DMV, MSc; R. Carareto, DMV, MSc; P.C. Ferro, DMV; E.D.V. Conceição, DMV, MSc; P.S.P. Santos, DMV, MSc, PhD
Department of Veterinary Medicine and Surgery, College of Agricultural and Veterinary Sciences, São Paulo State University, Jaboticabal, São Paulo, Brazil

This study was aimed to evaluate Bispectral index (BIS) variables in dogs anesthetized with continuous infusion of propofol associated or not to nitrous oxide.

Fourteen dogs, adult healthy mongrel dogs, males or females, were equally divided into two groups (G1 and G2). The G1 animals received propofol (10 mg/kg) intravenously to induce the general anesthesia. Immediately after, the dogs were intubated, and received oxygen (30%) with nitrous oxide (70%). Concomitantly, continuous infusion of propofol (0.6 mg/kg/min) was initiated using an infusion pump. The G2 animals were submitted to the same protocol, but the gas mixture was substituted to oxygen (100%). BIS values (maximum, minimum and mean), suppression rate (SR), sign of quality (SQI) and electromyography (EMG) were evaluated 30 minutes after the infusion beginning (M1), and at each 10 minutes, during 50 minutes (M2, M3, M4, M5, and M6, respectively). Statistical analyses of the data were performed using analysis of variance (ANOVA), followed by the Tukey test (p<0.05).

There were no differences between groups at the same time, and similarly did not denote differences occurring with the time within the same group.

The present results led us to conclude that nitrous oxide do not interfere in BIS values in dogs anesthetized with continuous infusion of propofol. Then, these new monitoring method could be used to improve the anesthetic management with these protocols.

Speaker Information
(click the speaker's name to view other papers and abstracts submitted by this speaker)

C.T. Nishimori, DMV, MSc
São Paulo State University
Jaboticabal, São Paulo, Brazil


MAIN : Abstracts, Poster : Biespectral Index in Dogs
Powered By VIN

Friendly Reminder to Our Colleagues: Use of VIN content is limited to personal reference by VIN members. No portion of any VIN content may be copied or distributed without the expressed written permission of VIN.

Clinicians are reminded that you are ultimately responsible for the care of your patients. Any content that concerns treatment of your cases should be deemed recommendations by colleagues for you to consider in your case management decisions. Dosages should be confirmed prior to dispensing medications unfamiliar to you. To better understand the origins and logic behind these policies, and to discuss them with your colleagues, click here.

Images posted by VIN community members and displayed via VIN should not be considered of diagnostic quality and the ultimate interpretation of the images lies with the attending clinician. Suggestions, discussions and interpretation related to posted images are only that -- suggestions and recommendations which may be based upon less than diagnostic quality information.

CONTACT US

777 W. Covell Blvd., Davis, CA 95616

vingram@vin.com

PHONE

  • Toll Free: 800-700-4636
  • From UK: 01-45-222-6154
  • From anywhere: (1)-530-756-4881
  • From Australia: 02-6145-2357
SAID=27