Effect of Presurgical Iodine-Based Disinfection on Bacterial Colonization of the Equine Peripodal Region.
Abstract: To compare bacterial colonization after diluted iodine tincture or povidone iodine solution for presurgical disinfection of the equine peripodal region. Methods: Complete block design. Methods: Five horses. Methods: Disinfection protocols using iodine tincture or povidone iodine solutions were tested on 5 pairs (n = 10) equine front feet. Iodine tincture was applied to the left feet and povidone iodine to the right feet. Fixed surfaces of the sole, frog, hoof wall, and peripodal skin were swabbed pre-preparation (T0), after a standard pre-disinfection step (T1), after short disinfection with a 4-minute application of 0.5% iodine tincture or povidone iodine (T2), and after long disinfection with 12-hour soaking in 0.25% iodine tincture or povidone iodine (T3). Quantitative bacteriology was performed on each swab. Results: The frog and sole were the most contaminated sites compared to hoof wall and skin at T0. Bacterial counts were significantly decreased at T2 for both solutions. Bacterial counts did not change significantly with iodine tincture at T3 but increased with povidone iodine compared to T2. Skin abrasions were detected on almost all feet but were subjectively more severe on iodine tincture-treated feet. Conclusions: Soaking for 12 hours with either iodine tincture or povidone iodine is not recommended as these solutions damaged the skin and bacterial recolonization was noted with povidone iodine. Four-minute disinfection using either iodine tincture or povidone iodine (0.5% available iodine) is appropriate for presurgical preparation of the equine peripodal region.
© Copyright 2015 by The American College of Veterinary Surgeons.
Publication Date: 2015-05-22 PubMed ID: 25998498DOI: 10.1111/vsu.12338Google Scholar: Lookup
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- Clinical Trial
- Journal Article
Summary
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The research compares the effectiveness of iodine tincture and povidone iodine in pre-surgical disinfection of a horse’s foot, finding both solutions effective in the short term but potentially damaging and less effective over longer periods.
Methods
- The study was conducted using a complete block design and involved five horses.
- The researchers tested disinfection protocols using two different solutions: iodine tincture and povidone iodine, on pairs of equine front feet.
- The iodine tincture was applied to the left feet and the povidone iodine to the right feet, allowing for a direct comparison.
- The researchers took swabs at four different times: before any solution was applied, after a standard pre-disinfection step was carried out, after a short disinfection involving a four-minute application of the solutions, and after a long disinfection that involved a 12-hour soak in the solutions.
- They then performed quantitative bacteriology on each swab to measure the bacterial colonization.
Results
- Initially, the frog and sole of the feet were the most contaminated parts.
- After the short disinfection, bacterial counts significantly decreased for both solutions.
- However, after the long disinfection, the bacterial counts did not change significantly with the iodine tincture, whereas for povidone iodine, the bacterial counts increased.
- Skin abrasions were discovered on the majority of the feet, and were more severe with the feet treated with iodine tincture.
Conclusions
- The research concludes that soaking a horse’s foot for 12 hours in either iodine tincture or povidone iodine is not recommended as these solutions had negative effects on the skin and the bacterial recolonization increased for povidone iodine.
- However, a four-minute disinfection using either solution is deemed appropriate for presurgical preparation of the equine peripodal region.
- This study aids in understanding the proper use of iodine-based solutions for disinfection in equine surgery.
Cite This Article
APA
Johnson J, Messier S, Meulyzer M, Vinardell T, Marcoux M, David F.
(2015).
Effect of Presurgical Iodine-Based Disinfection on Bacterial Colonization of the Equine Peripodal Region.
Vet Surg, 44(6), 756-762.
https://doi.org/10.1111/vsu.12338 Publication
Researcher Affiliations
- Large Animal Surgery, Veterinary Clinical Studies, School of Veterinary Medicine, University College Dublin, Dublin, Ireland.
- D, é, partement de Pathologie et Microbiologie, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, Canada.
- Paardenkliniek de Morette, Asse, Belgium.
- Animal and Crop Science, School of Agriculture and Food Science, University College Dublin, Dublin, Ireland.
- Département de Sciences Cliniques, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, Canada.
- Mid-Atlantic Equine Medical Center, Ringoes, New Jersey.
MeSH Terms
- Animals
- Anti-Infective Agents, Local / therapeutic use
- Bacterial Load / veterinary
- Disinfection / methods
- Hoof and Claw / microbiology
- Hoof and Claw / surgery
- Horses / surgery
- Iodine / therapeutic use
- Povidone-Iodine / therapeutic use
- Preoperative Care / veterinary
- Skin / microbiology
- Skin / pathology
- Time Factors
Citations
This article has been cited 3 times.- Isola M, Piccinotti C, Magro M, Fasolato L, Vianello F, Menandro ML, Memarian P, Rossi M, Falomo ME. Colloidal Iron Oxide Formulation for Equine Hoof Disinfection. Animals (Basel) 2021 Mar 10;11(3).
- Ysebaert MP, Johnson JP, Abbas G, Cavalcante PH, King R, Oikawa M, Puchalski S, David F. Arthroscopic removal of a solitary osteochondroma interfering with the podotrochlear apparatus in a foal. Vet Surg 2021 Jul;50 Suppl 1(Suppl 1):O128-O137.
- Kick BL, Gumber S, Wang H, Moore RH, Taylor DK. Evaluation of 4 Presurgical Skin Preparation Methods in Mice. J Am Assoc Lab Anim Sci 2019 Jan 1;58(1):71-77.
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