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Pagnoncelli, Marciélen; França, Raqueli Teresinha; Martins, Danieli Brolo; Howes, Flávia; Lopes, Sonia Teresinha dos Anjos; Mazzanti, Cinthia Melazzo.
Acta Sci. vet.; 39(3): 1-3, 20110000. ilus
Artigo em Inglês | VETINDEX | ID: vti-11582


Background: The family Capillariidae includes several species that parasite a wide variety of domestic and wild animals. Species such as Capillaria plica and Capillaria feliscati are found in the bladder, kidneys and ureters of domestic and wild carnivores. These nematodes are not still well known in Brazil, but have a great importance for studies of urinary tract diseases in domestic animals, mainly cats. The parasites life cycle is still unclear, may be direct or involve a paratenic host, such as the earthworm. Eggs are laid in the bladder and thus are discarded to the environment, where the larvae develop and are ingested by hosts. It is believed that the ingestion of soil and material contaminated with infective larvae derived from the decomposition of dead earthworms may be an alternative pathway for infection of animals. It has been reported in dogs a pre-patent period between 61 and 88 days. In Germany, the prevalence of C. plica in domestic cats was about 6%, with higher incidence in males, whereas in wild cats the prevalence of C. plica and C. feliscati was 7%, also with higher incidence in males. In Brazil, the first report of Capillaria sp. in a domestic cat was only done in 2008. Thus, the purpose of this report is to describe the importance of urinalysis in cases of suspected capillariasis and alert small animals clinicians on the occurrence of this disease as a cause of lower urinary tract disease feline (LUTDF) in the country. Case: It was attended at the Veterinary Hospital of the Universidade Federal de Santa Maria (HVU-UFSM), a male adult feline, mixed breed, presenting urinary incontinence and dysuria. We requested additional tests, including urinalysis, which was observed during the examination of sediment, eggs similars to Capillaria sp. The species was not determined due to the morphological similarity between the eggs of Capillaria plica and Capillaria feliscati. The results of the serum biochemistry were adequate for the feline species, while the CBC showed only eosinophilia. The animal was treated with a single dose of ivermectin (0.2 mg / kg SC), but the animal dead 21 days after initial treatment. Discussion: Cases of Capillaria sp. in the bladder of dogs and cats are rarely reported because, in most cases, clinical signs are not observed due to low parasite load that they show. However, when there are clinical signs can be observed polaciuria, dysuria, cystitis, and inappropriate urination. Infections are usually self limiting, however, in the presence of clinical signs, treatment should be instituted. In the present case, the animal had only urinary incontinence and dysuria. The collection of the urine sample through cystocentesis is indicated in suspected cases of capillariasis, to avoid contamination of urine with feces and eggs of Trichuris sp. what may lead to a misdiagnosis. The urinary sediment is a qualitative test for diagnosis of this infection. Although the infection by the different species of Capillaria be uncommon, it is important that clinicians be alert for refractory cases of LUTDF that dont answer to the conventional treatment, performing urinalysis for possible occurrence of Capillaria sp. eggs in the urinary sediment.(AU)
Biblioteca responsável: BR68.1