Analyze Diet
Veterinary research forum : an international quarterly journal2024; 15(6); 291-296; doi: 10.30466/vrf.2024.2013359.4034

Clinical and echocardiographic evaluations of sedative and cardiovascular effects of combination of xylazine-acepromazine versus xylazine-pregabalin in horses.

Abstract: The aim of this study was to compare the sedative and cardiovascular effects of the combination of xylazine-acepromazine versus xylazine-pregabalin - in horses. Four healthy crossbred horses were included in the study and assigned to two treatments. In treatment I (T1), the animals received xylazine hydrochloride (1.00 mg kg) in combination with acepromazine maleate (0.05 mg kg) intravenously. In treatment II (T2), the animals received intragastric administration of pregabalin (4.00 mg kg) followed by xylazine hydrochloride (1.00 mg kg) intravenously after 60 min. Head height above ground (HHAG) and echocardiographic indices were evaluated. In T1, recordings were made 5 minubefore and 5, 15, 30, 60, and 90 minu after drug administration. In T2, recordings were made 5 min before pregabalin, 55 minu after pregabalin administration, and then 5, 15, 30, 60, and 90 min after xylazine hydrochloride acepromazine injection. Analyses of the data showed there were no significant differences regarding HHAG and echocardiographic indices between the two treatments. Intragastric administration of pregabalin prior to xylazine could be considered as an alternative premedication regimen when acepromazine administration is contraindicated or undesirable.
Publication Date: 2024-06-15 PubMed ID: 39035476PubMed Central: PMC11260224DOI: 10.30466/vrf.2024.2013359.4034Google Scholar: Lookup
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
  • Journal Article

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The research investigates the effects of different sedative combinations on horses, namely a combination of xylazine-acepromazine and xylazine-pregabalin. The study found that the two drug combinations had comparable effects on the animals’ cardiovascular condition and level of sedation, suggesting the possibility of using pregabalin before xylazine as an alternative premedication regimen.

The Experiment

  • The study included four healthy crossbred horses which were divided into two treatment groups for a comparison of the sedation and cardiovascular effects.
  • In the first treatment group (T1), the horses received an intravenous dose of xylazine hydrochloride combined with acepromazine maleate. This was evaluated for changes in the horses’ head height above ground (HHAG) and their cardiovascular conditions illustrated via echocardiographic indices.
  • In the second group (T2), the horses were first given an intragastric dose of pregabalin, followed by an intravenous shot of xylazine hydrochloride after 60 minutes. The same HHAG and echocardiographic evaluations were performed as in T1.

The Findings

  • Readings were taken at multiple times after the administration of the drugs in both T1 and T2 groups, allowing the effects of the drugs to be measured over time.
  • The data collected showed no significant differences in both the HHAG and the echocardiographic indices between the two treatment groups. This means that the level of sedation and cardiovascular conditions were similar regardless of whether the horses received acepromazine or pregabalin as the additional drug to the xylazine.
  • This led to the conclusion that the use of intragastric pregabalin before an intravenous dose of xylazine could be seen as a potential alternative premedication regimen, especially in scenarios when the use of acepromazine is contraindicated or not desired.

Implications

  • The result of this study could open up possibilities for new pre-sedation processes in managing horses, particularly when the standard usage of acepromazine is not suitable or preferred.
  • More research could be conducted in this area to further validate these findings and to investigate any additional benefits or drawbacks associated with the xylazine-pregabalin combination preprocessing.

Cite This Article

APA
Shokrollahi S, Mohammadi R, Sarrafzadeh-Rezaei F, Jalilzadeh-Amin G, Hashemi-Asl SM. (2024). Clinical and echocardiographic evaluations of sedative and cardiovascular effects of combination of xylazine-acepromazine versus xylazine-pregabalin in horses. Vet Res Forum, 15(6), 291-296. https://doi.org/10.30466/vrf.2024.2013359.4034

Publication

ISSN: 2008-8140
NlmUniqueID: 101625812
Country: Iran
Language: English
Volume: 15
Issue: 6
Pages: 291-296

Researcher Affiliations

Shokrollahi, Siamak
  • Department of Surgery and Diagnostic Imaging, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
Mohammadi, Rahim
  • Department of Surgery and Diagnostic Imaging, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
Sarrafzadeh-Rezaei, Farshid
  • Department of Surgery and Diagnostic Imaging, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
Jalilzadeh-Amin, Ghader
  • Department of Internal Medicine and Clinical Pathology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
Hashemi-Asl, Seyed Mohammad
  • Department of Surgery and Diagnostic Imaging, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.

Conflict of Interest Statement

There is no conflict of interest to declare.

References

This article includes 25 references
  1. Ghazaleh N, Sharifi D, Ghamsari SM. Evaluation of low-level laser effects on epidural anesthesia in horse. Iran J Vet Surg 2018;13(1):47–53.
  2. Mohammadi R, Hashemi-Asl SM. Management of olecranon fracture in a horse. Iran J Vet Surg 2018;13(1):67–72.
  3. Raayat Jahromi A, Lischer C, Ehrl A. Assessment of analgesic efficacy of intra-articular tramadol administration following arthroscopic surgery in horses - a pilot study. Iran J Vet Surg 2016;11(1):1–7.
  4. Bonagura JD, Blissitt KJ. Review article: echocardiography. Equine Vet J 1995;27(S19):5–17.
    pubmed: 8933064
  5. Buhl R, Ersbøll AK, Larsen NH. The effects of detomidine, romifidine or acepromazine on echocardiographic measurements and cardiac function in normal horses. Vet Anaesth Analg 2007;34(1):1–8.
    pubmed: 17238956
  6. Chou CC, Chen CL, Rice BL. Reduced resident time and pharmacodynamic effects of acepromazine after subclinical multiple dosage in exercised thorough-breds. J Vet Pharmacol Ther 2002;25(5):379–382.
    pubmed: 12423229
  7. Taylor AH, Bolt DM. Persistent penile erection (priapism) after acepromazine premedication in a gelding. Vet Anesth Analg 2011;38(5):523–525.
    pubmed: 21831062
  8. FEI Equine Anti-Doping and Controlled Medication Regulations. Fédération Equestre Internationale. 2nd ed. Switzerland: FEI: Chemin de la Joliette, Lausanne; 2016.
  9. Zareba G. Pregabalin: a new agent for the treatment of neuropathic pain. Drugs Today (Barc) 2005;41(8):509–516.
    pubmed: 16234874
  10. Mullen KR, Schwark W, Divers TJ. Pharmacokinetics of single-dose intragastric and intravenous pregabalin administration in clinically normal horses. Am J Vet Res 2013;74(7):1043–1048.
    pubmed: 23802677
  11. Dezfouli MR, Tavanaeimanesh H, Houshangi AF. Effects of xylazine and acepromazine on echocardiographic parameters in the healthy horse. Pferdeheilkunde Equine Med 2020;36:37–42.
  12. Ringer SK, Schwarzwald CC, Portier KG. Effects on cardiopulmonary function and oxygen delivery of doses of romifidine and xylazine followed by constant rate infusions in standing horses. Vet J 2013;195(2):228–234.
    pubmed: 22841452
  13. Tavanaeimanesh H, Dezfouli MR, Vajhi A. The effect of 7 2% hypertonic saline solution on echocardiographic parameters of healthy horses. Equine Vet J 2015;47(6):741–744.
    pubmed: 26278206
  14. Schwarzwald CC. Equine echocardiography. Vet Clin North Am Equine Pract 2019;35(1):43–64.
    pubmed: 30826106
  15. Steffey EP, Kelly AB, Farver TB. Cardiovascular and respiratory effects of acetylpromazine and xylazine on halothane anesthetized horses. J Vet Pharmacol Ther 1985;8(3):290–302.
    pubmed: 3932674
  16. Schwarzwald CC, Schober KE, Berli AS. Left ventricular radial and circumferential wall motion analysis in horses using strain, strain rate, and displacement by 2D speckle tracking. J Vet Intern Med 2009;23(4):890–900.
    pubmed: 19496916
  17. Parhizkar P, Mohammadi R, Hashami-Asl SM. Comparison of the sedative and cardiovascular effects of the combination of acepromazine-clonidine versus acepromazine-xylazine in horses. Vet Res Forum 2024;15(1):21–26.
    pmc: PMC10921139pubmed: 38464604
  18. Wu Y, Tobias AH, Bell K. Cellular and molecular mechanisms of systolic and diastolic dysfunction in an avian model of dilated cardiomyopathy. J Mol Cell Cardiol 2004;37(1):111–119.
    pubmed: 15242741
  19. Schwarzwald CC, Hamlin RL, Bonagura JD. Atrial, SA nodal, and AV nodal electrophysiology in standing horses: normal findings and electrophysiologic effects of quinidine and diltiazem. J Vet Intern Med 2007;21(1):166–175.
    pubmed: 17338165
  20. Walker M, Geiser D. Effects of acetylpromazine on the hemodynamics of the equine metatarsal artery, as determined by two-dimensional real-time and pulsed Doppler ultrasonography. Am J Vet Res 1986;47(5):1075–1078.
    pubmed: 3521404
  21. Muir WW 3rd, Mason DE. Effects of diazepam, acepromazine, detomidine, and xylazine on thiamylal anesthesia in horses. J Am Vet Med Assoc 1993;203(7):1031–1038.
    pubmed: 8226249
  22. Menzies-Gow NJ. Effects of sedation with acepromazine on echocardiographic measurements in eight healthy thoroughbred horses. Vet Rec 2008;163(1):21–25.
    pubmed: 18603631
  23. MacKenzie G, Snow DH. An evaluation of chemical restraining agents in the horse. Vet Rec 1977;101(2):30–33.
    pubmed: 906217
  24. Parry BW, Anderson GA, Gay CC. Hypotension in the horse induced by acepromazine maleate. Aust Vet J 1982;59(5):148–152.
    pubmed: 6131662
  25. Muir WW, Skarda RT, Sheehan W. Hemodynamic and respiratory effects of a xylazine-acetylpromazine drug combination in horses. Am J Vet Res 1979;40(11):1518–1522.
    pubmed: 43105

Citations

This article has been cited 0 times.