| Summary: | In the department of Caqueta, Colombia, 31 horses affected of rhinozigomycosis
(nasal granuloma) and 13 affected of zigomycosis were selected in order to evaluate
the curative effect of potassium iodide (1K) and of acetonide of triamcinolone (VetalogR.
In a first group, consisting of 18 animals affected of rhinozigomycosis and 4
of dermal zigomycosis, curative responses were found on 5 and 2 animals respectively,
when 1K was applied intravenously (55-490 g distributed between 11 to 28
dosages). Group two, that consisted of 15 animals affected of rhinozigomycosis
(include 3 non-responsive of group one) and 6 affected of dermal zigomycosis, were
treated with acetonide of triamcinolone (30-150 mg, dividend on 1-3 dosages at 3
to 10 days interval, IM). Curative responses were observed on 13 and 3 animals
respectively. 1K was able to produce healing of dermal and nasal cases but the
success rate was low. Due to the long term treatment under field conditions there were 9 yugular extravasation causing interruption of treatments and/or death of
animals. Although acetonide of triamcinolone showed a high number of curative
responses at the beginning, 7 cases of rhinozigomycosis showed recurrence at 120
to 490 days after treatment. These recurrences were mainly observed on animals
receiving low dosages. Triamcinolone should be used with caution, avoiding its
application on pregnant or milking mares or in old or weak animals.
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