Article (Scientific journals)
Comparison of the effects of ketamine and fentanyl-midazolam-medetomidine for sedation of rhesus macaques (Macaca mulatta)
Bertrand, Henri; Ellen, Yvette C; O'Keefe, Stevie et al.
2016In BMC Veterinary Research, 12
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Keywords :
Sedation; Ketamine; fentanyl; midazolam; medetomidine; recovery; macaque
Abstract :
[en] Background: This study assessed the effects of sedation using a combination of fentanyl, midazolam and medetomidine in comparison to ketamine. Rhesus Macaques (Macaca mulatta), (n = 16, 5 males and 3 females randomly allocated to each treatment group) received either ketamine (KET) (10 mg.kg−1) or fentanyl-midazolam-medetomidine (FMM) (10 μg/kg−1; 0.5 mg.kg−1; 20 μg.kg−1) both IM. Oxygen (100 %) was provided by mask and heart rate, blood pressure, respiratory rate, EtCO2 and depth of sedation were assessed every 5 min for 20 min. After the last time point, FMM monkeys were reversed with atipamezole-naloxone (0.2 mg.kg−1; 10 μg.kg−1). Recovery was scored using clinical scoring scheme. Differences in physiological parameters and quality of sedation were compared using Area Under the Curve (AUC) method and either Mann-Witney or t-student tests. Results: Heart rate (beats/min) (Ket = 119 ± 18; FMM = 89 ± 17; p = 0.0066), systolic blood pressure (mmHg) (Ket = 109 ± 10; FMM = 97 ± 10; p = 0.0313), and respiratory rate (breaths/min) (Ket = 39 ± 9; FMM = 29 ± 10; p = 0.0416) were significantly lower in the FMM group. End-tidal CO2 (mmHg) did not differ between the groups (KET = 33 ± 8; FMM = 42 ± 11; p = 0.0462). Although some depression of physiological parameters was seen with FMM, the variables all remained within the normal ranges in both groups. Onset of a sufficient degree of sedation for safe handling was more rapid with ketamine (KET = 2.9 ± 1.4 min; FMM = 7.9 ± 1.2 min; p = 0.0009), but FMM recovery was faster (KET = 21.4 ± 13.4 min; FMM = 9.1 ± 3.6 min; p = 0.0379) and of better quality (KET = 1.3 ± 0.9; FMM = 7.4 ± 1.9; p = 0.0009) most probably because of the effectiveness of the reversal agents used. Conclusion: FMM provides an easily reversible immobilization with a rapid and good recovery quality and may prove a useful alternative to ketamine. Keywords: Sedation, Ketamine, Fentanyl, Midazolam, Medetomidine, Recovery macaque
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Bertrand, Henri ;  Université de Liège - ULiège > Doct. sc. vété. (paysage)
Ellen, Yvette C
O'Keefe, Stevie
Flecknell, Paul A
Language :
English
Title :
Comparison of the effects of ketamine and fentanyl-midazolam-medetomidine for sedation of rhesus macaques (Macaca mulatta)
Publication date :
2016
Journal title :
BMC Veterinary Research
eISSN :
1746-6148
Publisher :
BioMed Central
Volume :
12
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 February 2017

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