scholarly journals Analgesic and Sedative Effects of Epidural Lidocaine-Xylazine in Elective Bilateral Laparoscopic Ovariectomy in Standing Mule Mares

Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2419
Author(s):  
Cecilia Vullo ◽  
Adolfo Maria Tambella ◽  
Marina Meligrana ◽  
Giuseppe Catone

The purpose of this study was to determine the analgesic efficacy and safety of epidural lidocaine-xylazine administration in standing mules undergoing elective bilateral laparoscopic ovariectomy in order to suppress unwanted behaviour. Eight mule mares were sedated with intramuscular 0.05 mg/kg acepromazine followed by 1.3 mg/kg of xylazine and 0.02 mg/kg of butorphanol intravenously. Sedation was maintained by a constant rate infusion of 0.6 mg/kg/h of xylazine. The paralumbar fossae were infiltrated with 30 mL of 2% lidocaine. Epidural anaesthesia was performed at the first intercoccygeal space with 0.2 mg/kg of lidocaine and 0.17 mg/kg of xylazine. After 15 min, bilateral laparoscopic ovariectomy was performed. Heart rate, respiratory rate, rectal temperature, invasive arterial blood pressure, degree of analgesia, sedation and ataxia were evaluated during surgery. The laparoscopic ovariectomy was successfully completed in all animals. Sedation and analgesia were considered satisfactory in six out of the eight mules. In conclusion, caudal epidural block allowed surgery to be easily completed in six out of eight. The animals did not show any signs of discomfort associated with nociception and were mostly calm during the procedures, however additional studies are needed to establish epidural doses of xylazine and lidocaine that result in reliable abdominal pain control in mules for standing ovariectomy.

Author(s):  
N. E. Ugwu ◽  
C. A. Eze ◽  
R. I. Udegbunam ◽  
T. O. Nnaji

The study evaluated the peri-operative analgesic efficacy of tramadol administered by constant rate infusion as an adjunct to ketoprofen in ovariohysterectomized bitches. Pre- and postoperative assessment of pain was made using physiologic parameters, glucose, cortisol, pain score and body weight. Dogs were randomly assigned to one of the three groups using the protocol: 1.0mg/kg/hr, 2.0mg/kg/hr of CRI tramadol and control. Ketoprofen (5mg/kg, SC) was administered at one, twenty-four and seventy-two hours post-OVH to all the dogs. Mean glucose and cortisol levels of group 3 dogs were at intra- and at one-hour post-OVH higher (pliss than 0.05) than those of groups 1 and 2. Mean pain score of group 3 was significantly higher (p less than 0.05) than those of groups 1 and 2 at one, four, twenty-four and seventy-two hours post-OVH. The use of CRI tramadol at doses of 1.0mg/kg/hr and 2.0mg/kg/hr attenuated rise in pain markers and produced balanced analgesia as an adjunct to ketoprofen.


2020 ◽  
Vol 81 (1) ◽  
pp. 25-32
Author(s):  
Amanda K. Hartnack ◽  
Andrew J. Niehaus ◽  
Jeffrey Lakritz ◽  
Johann F. Coetzee ◽  
Michael D. Kleinhenz

1986 ◽  
Vol 111 (4) ◽  
pp. 516-521
Author(s):  
Nina Clausen ◽  
Per-Eric Lins ◽  
Ulf Adamson ◽  
Bertil Hamberger ◽  
Suad Efendić

Abstract. Hypothyroidism has been alleged to modulate insulin action and influence the secretion of growth hormone and catecholamines. We recently investigated the influence of hypothyroidism on glucose counterregulatory capacity and the hormonal responses to insulin-induced hypoglycaemia in 6 patients with primary hypothyroidism (age 32–52 years, TSH-values 66–200 mU/l). Hypoglycaemia was induced in the hypothyroid state and again when the subjects were euthyroid. After an overnight fast a constant rate infusion of insulin (2.4 U/h) was given for 4 h. Glucose was measured every 15 min and insulin, C-peptide, glucagon, epinephrine, norepinephrine, growth hormone and cortisol every 30 min for 5 h. During insulin infusion somewhat higher concentrations of the hormone were obtained in the hypothyroid state and simultaneously glucose levels were 0.5 mmol/l lower. As expected, basal norepinephrine levels were higher in hypothyroidism. However, no increase in circulating norepinephrine during hypoglycaemia was registered in the two experiments. The responses of counterregulatory hormones showed an enhanced response of cortisol, similar responses of growth hormone and epinephrine while the glucagon response was paradoxically impaired. Our findings suggest that hypothyroidism alters insulin metabolism, and that the glucagon response to hypoglycaemia is impaired in this condition.


2014 ◽  
Vol 75 (8) ◽  
pp. 716-721 ◽  
Author(s):  
Barbara Ambros ◽  
Jane Alcorn ◽  
Tanya Duke-Novakovski ◽  
Alexander Livingston ◽  
Patricia M. Dowling

2012 ◽  
Vol 171 (5) ◽  
pp. 125-125 ◽  
Author(s):  
M. del Mar Granados ◽  
J. Manuel Domínguez ◽  
A. Fernández-Sarmiento ◽  
F. Javier Funes ◽  
J. Morgaz ◽  
...  

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