Equis ISSN 2398-2977

Anesthesia: standing chemical restraint

Contributor(s): Adam Auckburally, Kate Baker, Dennis R Gieser, Vetstream Ltd

Introduction

  • Many procedures, some relatively invasive, can be performed under standing sedation.
  • Sedation has been revolutionized by alpha-2 adrenergic agonists.
  • Sedation for surgery can be achieved by injecting a combination of 2 or more drugs, and can be of long duration using infusions of these drugs.
  • Non-steroidal anti-inflammatory drugs should be administered as necessary.

Aims

  • Quiet, non-ataxic horse.
  • Unresponsive to external stimuli.
  • Analgesia   Anesthesia: analgesia - overview   if surgery is intended.
  • Characteristics of the ideal sedative drug:
    • Potent.
    • Non-irritant.
    • Rapid onset.
    • Analgesic.
    • Reliable.
    • No side-effects.
    • Good bioavailability if administered by routes other than IV.
    • Reversible.

Sedative/analgesic drugs

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Doses

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Common mistakes

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Specific cases

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Infusion techniques & doses

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Further Reading

Publications

Refereed papers
  • Recent references fromPubMed.
  • Michou J & Leece E (2012)Sedation and analgesia in the standing horse 2. Local anaesthesia and analgesia techniques. In Pract34(10), 578-587.
  • Michou J & Leece E (2012)Sedation and analgesia in the standing horse 1. Drugs used for sedation and systemic analgesia. In Pract34(9), 524-531.
  • Luukkanen L, Katila T & Koskinen E (1997)Some effects of multiple administration of detomidine during the last trimester of equine pregnancy. Equine Vet J29(5), 400-402PubMed.

Other sources of information

  • Muir W W (2009)Anxiolytics, Nonopioid Sedative-Analgesics, and Opioid Analgesics.In: Equine Anesthesia: Monitoring and Emergency Therapy.2nd edn. Eds: Muir W W & Hubbell J A E. Saunders Elsevier, London, UK. pp 185-209.


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