Abstract

BERMUDEZ, Paula María  and  RIVERA, José Alfredo. Effect of premedication with fentanyl-acepromazine and fentanyl-xylazine over postsurgical vomiting in dogs. Ces. Med. Vet. Zootec. [online]. 2018, vol.13, n.2, pp.102-110. ISSN 1900-9607.  https://doi.org/10.21615/cesmvz.13.2.1.

Opioid inclusion in pre-anesthesia and anesthesia may increase postperative vomiting and nausea, increasing the risk of bleeding, dehiscence, aspiration pneumonia or esophagitis. Therefore, the purpose of this study was to monitor vomiting, excessive salivation and anorexia during 24 hours of the post-surgical period on 100 dogs ASA I and II. Group A (n: 40) was pre-medicated with acepromazine at 0.08 mg/kg with fentanyl at 5 μg/kg i.v; group X (n: 60) with xylazine at 0.3 mg/kg i.v. with fentanyl at 5 μg/kg i.v. Anesthesia induction was made with propofol at 4 mg/kg and maintained with isofluorane at 1.5-3% for both groups. The overall vomiting produced was 12% and there were no significant differences in vomiting manifestation at 2 (p=0.837), 6 (p=0.439) and 24 hours (p= 0.639) between the groups. In the same way, there were no major differences neither for excessive salivation nor anorexia. There was a significant association between postanesthesia vomiting and reproductive surgery in female dogs (p=0.02). As a conclusion, a single bolus of fentanyl at 5 μg/kg with acepromazine at 0.08 mg/kg or xylazine 0.3 mg/kg in pre-anesthesia does not increase post-surgery vomiting in dogs in the first 24 hours.

Keywords : Acepromazine; canine; fentanyl; xylazine; vomit.

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