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Vet Rec ; 173(22): 550, 2013 Dec 07.
Article in English | MEDLINE | ID: mdl-24218416

ABSTRACT

To document the suitability of intravenous propofol and ketamine following sedation with xylazine for routine anaesthetic induction in horses. Retrospective. 100 client-owned horses. Anaesthetic records were evaluated to determine: signalment, anaesthetic drug and dosages, need for additional induction agents, notation of any adverse events, duration of anaesthesia and recovery characteristics (rough or smooth, and rapid or prolonged). Horses were sedated with xylazine 0.99±(0.2) mg/kg intravenous and 23 horses were also administered butorphanol 0.02±(0.001) mg/kg intravenous. Horses were anaesthetised with a combination of propofol 0.40±(0.1) mg/kg intravenous and ketamine 2.8±(0.3) mg/kg intravenous. Six horses required additional ketamine. None became apnoeic and no adverse events were noted. Anaesthesia was maintained with isoflurane in 66 horses and a combination of guaifenesin, ketamine and xylazine (GKX) in 34 horses. Total anaesthesia time was 125.4±(46) minutes. Fifty-one horses were administered romifidine 0.016 (±0.008) mg/kg intravenous at recovery. Time from orotracheal extubation to standing was 27.6±(25) minutes. Of the 58 records with recovery characteristics, the number per category was: rapid n=6, prolonged n=3, smooth n=46, rough n=6. Intravenous propofol and ketamine following xylazine provided satisfactory anaesthetic inductions and recoveries in a varied population of horses without any clinically relevant adverse events.


Subject(s)
Anesthesia, General/veterinary , Anesthetics, Combined/administration & dosage , Anesthetics, Intravenous/administration & dosage , Horses , Ketamine/administration & dosage , Propofol/administration & dosage , Anesthesia Recovery Period , Anesthesia, General/methods , Anesthetics, Combined/adverse effects , Anesthetics, Intravenous/adverse effects , Animals , Dose-Response Relationship, Drug , Ketamine/adverse effects , Propofol/adverse effects , Records , Retrospective Studies , Veterinary Medicine , Xylazine/administration & dosage
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