Standing RLP in Horses Safe, Effective (AAEP 2011)

Regional limb perfusion can be performed safely, effectively, and comfortably without general anesthesia.
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One approach to dangerous joint infections in the horse involves isolating treatment to the infected limb, a procedure that can be performed while the horse is standing and awake or "sleeping" under general anesthesia. So which is best? A group of researchers in South Africa recently sought to answer this question, and Arnold T. Mahne, BVSc, of the University of Pretoria, in Onderstepoort, South Africa, presented the results at the 2011 American Association of Equine Practitioners convention, held Nov. 18-22 in San Antonio, Texas.

Mahne described the study in which he and colleagues conducted "intravenous regional limb perfusion" in horses that were either under general anesthesia or that remained standing, measuring both discomfort caused by the procedure and efficacy.

Intravenous regional limb perfusion (IRLP) involves injecting one or more antibiotics into a vein that supplies blood to the lower limb by isolating it with a tourniquet. This procedure provides very high concentrations of medications to the lower limb, which is difficult to achieve using standard routes of antibiotic administration (i.e., oral, intramuscular, or intravenous ).

Sometimes veterinarians perform IRLP with the horse under general anesthesia (GA) and other times they complete it in the standing, sedated horse, with or without a "nerve block" or other local anesthesia to minimize pain and discomfort. Putting a horse under general anesthesia is expensive and is typically a risky procedure due to, among other factors, the amount of stress it puts on the animal

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Written by:

Stacey Oke, MSc, DVM, is a practicing veterinarian and freelance medical writer and editor. She is interested in both large and small animals, as well as complementary and alternative medicine. Since 2005, she’s worked as a research consultant for nutritional supplement companies, assisted physicians and veterinarians in publishing research articles and textbooks, and written for a number of educational magazines and websites.

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