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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Altera??es hepatobiliares em gatos dom?sticos (Felis catus domesticus) parasitados por Platynosomum illiciens (Braun, 1901) Kossack, 1910 observadas atrav?s do exame radiogr?fico, ultra-sonogr?fico e de tomografia computadorizada. / Hepatobiliary changes in domestic cats (Felis catus domesticus) infected by Platynosomum illiciens (Braun, 1901) Kossack, 1910 observed through radiography, ultrasound and computed tomography.

Azevedo, Felipe Delorme 26 February 2008 (has links)
Made available in DSpace on 2016-04-28T20:18:29Z (GMT). No. of bitstreams: 1 2008- Felipe Delorme Azevedo.pdf: 2096564 bytes, checksum: df01d12b66d119d793607a54f49e8ea9 (MD5) Previous issue date: 2008-02-26 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / Platynosomum illiciens (Braun 1901) Kossack, 1910, considered by some authors as synonymy of Platynosomum fastosum and Platynosomum concinnum, is the most important trematode found in cats of tropical and subtropical areas, and its prevalence can reach up to 85%. In Brazil it was already found at different localities, but State of Rio de Janeiro is where it presents a higher prevalence and could be found in 56% of the cats. Due to the P. illiciens diagnosis is being done exclusively through the discovery of eggs of this parasite by fecal examination, and this is considered being little sensible, it is necessary the study of complementary tools of diagnosis for the parasite and the hepatic alterations possibly determined by this parasite. Therefore, radiology, ultrasound and computed tomography were used for the evaluation of alterations caused by P. illiciens in order to evidence alterations that aid in the diagnosis of this parasitosis or even to evidenced major alterations caused by the platynosomiasis. A triage was accomplished with 13 animals searching for the presence of P. illiciens eggs in feces. Eight positive cats (61.54%) were found, and submitted to the proposed image diagnosis technics, except for tomography which only seven animals were submitted. The radiologic examination evidenced five animals with enlargement of the liver; one animal was with a normal liver and in two animals the hepatic limits were not observed through the x-ray. In ultrasound scanning, six animals was identified hepatomegaly and in regard of the hepatic parenchyma only one animal presented this parameter altered. All the animals presented normal hepatic vessels and in regard to the biliary ducts, only two animals presented this parameter increased. Besides, the presence of the parasite can be evidenced in one animal during the accomplishment of the ultrasound scanning. In tomography, six cats were observed with enlargement of the liver and in regard to the other findings the results were descriptive. Among the obtained results, it can be concluded that the radiologic study just evaluate the liver size in a restricted way. The ultrasound scanning and computed tomography were considered good diagnostic tools, evaluating with clarity the hepatic size, the hepatic parenchyma, the configuration and width of biliary ducts, the gall bladder and the hepatic vessels. / Platynosomum illiciens (Braun, 1901) Kossack, 1910, considerado por alguns autores como sinon?mia de Platynosomum fastosum e Platynosomum concinnum, ? o mais importante tremat?deo encontrado em gatos de ?reas tropicais e subtropicais, com preval?ncia que pode chegar a 85%. No Brasil j? foi encontrado em diferentes localidades, mas o Estado do Rio de Janeiro ? onde apresenta maior preval?ncia podendo ser encontrado em 56% dos gatos. Devido ao diagn?stico de P. illiciens estar sendo feito exclusivamente atrav?s do achado de ovos deste parasito no exame de fezes, e este ser considerado pouco sens?vel, se faz necess?rio o estudo de meios complementares de diagn?stico do parasito e das poss?veis altera??es hep?ticas determinadas por este. Portanto, o exame radiol?gico, ultra-sonogr?fico e tomogr?fico foram utilizados na avalia??o das altera??es acarretadas pelo parasitismo por P. illiciens a fim de evidenciar altera??es que auxiliassem no diagn?stico desta parasitose ou mesmo evidenciar importantes altera??es causadas pela platinosom?ase. Foi realizada uma triagem em 13 animais em busca de gatos positivos para a presen?a de ovos de P. illiciens nas fezes. Foram encontrados oito gatos positivos (61,54%) os quais foram submetidos aos tr?s exames de diagn?stico por imagem propostos, com exce??o do exame de tomografia no qual apenas sete animais foram submetidos. O exame radiogr?fico evidenciou cinco animais com aumento hep?tico, um animal normal e em dois animais n?o se conseguiu identificar os limites hep?ticos atrav?s da radiografia. Na ultra-sonografia foi poss?vel identificar seis animais com hepatomegalia e em rela??o ao par?nquima apenas um animal apresentou este alterado. Todos os animais apresentaram os vasos hep?ticos normais e em rela??o ?s vias biliares, apenas dois animais apresentaram este par?metro aumentado. Al?m disso, pode-se evidenciar a presen?a do parasito em um animal durante a realiza??o da ultra-sonografia. Na tomografia foram observados seis gatos com o f?gado aumentado e em rela??o aos outros achados os resultados foram descritivos. Dentre os resultados obtidos, pode-se concluir que o exame radiogr?fico serviu apenas para avaliar de forma restrita o tamanho hep?tico. A ultrasonografia e a tomografia computadorizada se mostram como boas ferramentas de diagn?stico, avaliando-se com clareza o tamanho hep?tico, o par?nquima hep?tico, a conforma??o e a espessura das vias biliares, a ves?cula biliar al?m dos vasos hep?ticos.

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