Actinomyces species as a cause of abscesses in nine horses.
Abstract: The characteristics, history, clinical signs, treatment and outcome of nine horses with abscesses caused by Actinomyces species were reviewed. dna sequencing was used to determine the species of one of the isolates. The horses were one to 11 years of age, and the abscesses were most commonly located in the submandibular and retropharyngeal regions. The bacterium was usually cultured as the sole isolate and the horses were most often affected in the autumn. Most of the abscesses were treated with antimicrobials and drainage, but some of them recurred. The horses with submandibular abscesses had residual scar tissue that in some cases did not resolve.
Publication Date: 2008-01-08 PubMed ID: 18178933DOI: 10.1136/vr.162.1.18Google Scholar: Lookup
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- Journal Article
Summary
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This research studies nine cases of abscesses in horses caused by the Actinomyces species of bacteria. The assessment covers symptoms, treatments, and results, and uses DNA sequencing to identify the species of bacteria in one case.
Overview of the Research
The paper focuses on equine abscesses caused by Actinomyces species. It investigates nine cases, evaluates their common characteristics, and analyzes treatment protocols and outcomes. Utilizing dna sequencing technology, the researchers identify the species of one of the isolates.
Age and Location of Abscesses
- The horses studied were aged anywhere between one to 11 years.
- The abscesses were most frequently found in the submandibular (under the jaw) and retropharyngeal (behind the throat) regions.
Identification of Bacterial Species
- The researchers used DNA sequencing to specify the species of an isolated strain of bacteria present in the abscesses.
- In most instances, Actinomyces species was the only type of bacteria cultured from the abscesses.
Seasonal Variation in Occurrence
- The paper also noted a seasonal correlation, with horses frequently affected in the autumn.
Treatment Methods and Results
- For most cases, treatment involved the application of antimicrobial medication along with drainage of the abscesses.
- Despite following this treatment regimen, some of the abscesses recurred after an initial resolution.
Post-Treatment Conditions
- According to the study, horses that had abscesses under the jaw (submandibular) often ended up with residual scar tissue.
- In some instances, this scar tissue did not eventually dissolve or disappear, indicating a potential for longer-term effects post-treatment.
Cite This Article
APA
Fielding CL, Magdesian KG, Morgan RA, Ruby RE, Sprayberry KA.
(2008).
Actinomyces species as a cause of abscesses in nine horses.
Vet Rec, 162(1), 18-20.
https://doi.org/10.1136/vr.162.1.18 Publication
Researcher Affiliations
- Loomis Basin Equine Medical Center, 3901 Sierra College Boulevard, Loomis, CA 95650, USA.
MeSH Terms
- Actinomyces / isolation & purification
- Actinomycosis / epidemiology
- Actinomycosis / veterinary
- Animals
- California / epidemiology
- Disease Outbreaks / veterinary
- Female
- Horse Diseases / epidemiology
- Horse Diseases / etiology
- Horse Diseases / microbiology
- Horses
- Male
- Retropharyngeal Abscess / epidemiology
- Retropharyngeal Abscess / veterinary
Citations
This article has been cited 4 times.- van den Wollenberg L, van Maanen C, Buter R, Janszen P, Rey F, van Engelen E. Detection and molecular characterization of Actinomyces denticolens causing lymph node abscessation in horses. Front Vet Sci 2023;10:1225528.
- Murakami S, Kobayashi T, Sekigawa Y, Torii Y, Kanesaki Y, Ishige T, Yokoyama E, Ishiwata H, Hamada M, Tamura T. Actinomyces denticolens as a causative agent of actinomycosis in animals. J Vet Med Sci 2018 Nov 9;80(11):1650-1656.
- Murakami S, Otaki M, Hayashi Y, Higuchi K, Kobayashi T, Torii Y, Yokoyama E, Azuma R. Actinomyces denticolens colonisation identified in equine tonsillar crypts. Vet Rec Open 2016;3(1):e000161.
- Beck A, Baird JD, Slavić D. Submandibular lymph node abscess caused by Actinomyces denticolens in a horse in Ontario. Can Vet J 2011 May;52(5):513-4.
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