RESUMO

Among the diseases which can afflict the nasal cavities of small ruminants, oestrosis stands out. In Brazil, more specifically in its South-East region, the reports are limited only to the State of São Paulo and to the municipality of Araxá, Minas Gerais. Therefore, it has been sought to assess the parasitic prevalence of Oestrus ovis in sheep farmed in the municipality of Ituiutaba, Minas Gerais-Brazil, while correlating the larval size and stage, and its anatomical localization. Eighty-eight hemiheads of healthy Santa Inês/Dorper crossbreds Ovis aries have been used at random. The larvae in view were then collected and fixated to be quantified and analyzed in regard of size and stage of development. It is concluded that the oestrosis is an existing problem in the municipality of Ituiutaba, this being the first complete study on the prevalence of this parasite in the State of Minas Gerais. By anatomical distribution, only the differences of total larval averages between the frontal sinus and the ventral nasal meatus, the common nasal meatus and the nasopharynx have been significant. In size, the significant difference has been there only upon comparison between the size and the larval stage, information that is crucial for a better understanding of the cyclic progression, of the clinical symptomatology, and animal prophylaxis.

Dentre as doenças que podem atingir as cavidades nasais dos pequenos ruminantes, destaca-se a oestrose. No Brasil, mais especificamente na região Sudeste, os relatos estão limitados ao estado de São Paulo e ao município de Araxá, Minas Gerais. Assim, procurou-se avaliar a prevalência parasitária do Oestrus ovis em ovinos criados no município de Ituiutaba, Minas Gerais-Brasil, correlacionando ao mesmo tempo o tamanho e estágio larval com a sua localização anatômica. Oitenta e oito hemicabeças de Ovis aries mestiços Santa Inês com Dorper saudáveis foram utilizadas aleatoriamente. As larvas visualizadas foram então coletadas e fixadas para serem quantificadas e analisadas em relação ao seu tamanho e estágio de desenvolvimento. Conclui-se que a oestrose é um problema existente no município de Ituiutaba, sendo este o primeiro estudo completo sobre a prevalência deste parasito no estado de Minas Gerais. Por distribuição anatômica, apenas as diferenças das médias larvais totais entre o seio frontal e o meato nasal ventral, meato nasal comum e a nasofaringe foram significativas - o que confirma a preferência das larvas por essa região. Em tamanho, a diferença significativa só ocorreu mediante a comparação entre o tamanho e estágio das larvas, informação crucial para uma melhor compreensão da progressão cíclica, sintomatologia clínica e profilaxia dos animais.

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RESUMO

Background: The equine paranasal sinus have a complex anatomy and large compartiments. For this reason, deseasesthat affect these structures may develop for long periods before the animal show any clinical signs, making it difficult tostablish a definitive diagnosis and institute an adequate treatment. Usually, maxillary hematomas reports come from progression of ethmoidal hematomas, and the descriptions of primary maxillary hematomas are rare. This study aims to reportthe clinical features, diagnosis and treatment of a case of a maxillary hematoma not associated with ethmoidal turbinates.Case: An 8-year-old male horse, Mangalarga Paulista, was referred to the Centro de Apoio ao Ensino e Pesquisa FMVZUSP with history of nasal bleeding for over a year. The animal presented deformity on the right side of the face, with significant volume increase on the maxillary bone region and dull sound at percussion, in addition to great painfull sensibilitywhen palpated. The right nare had no airflow, suggesting complete obstruction of the right nasal cavity. In order to betterevaluate, endoscopic and radiographic exams were performed. At the radiographic exam, in ventrodorsal projection, itwas observed an increase of volume and radiopacity, occupying the right antimer of the nasal cavity, with left nasal septum deviation. In the right dorsoventral oblique projection, it was observed the filling of the rostral and caudal maxillarysinus with the content radiopacity as previously described. At endoscopy exam of the right nasal cavity, it was observeda rounded greenish structure on the middle meatus The diagnosis of maxillary paranasal sinus cist was suggested andsurgical removal, through maxillary sinusotomy was recommended. During the surgical procedure...(AU)

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RESUMO

Um cavalo de 6 anos apresentou secreção nasal unilateral e forte odor associado ao baixo desempenho atlético. Após avaliação clínica e exames de sinoscopia, confirmou-se sinusite primária, com grande quantidade de conteúdo purulento de muco nos seios paranasais esquerdos, além de fratura no osso nasal, sendo a possível causa da patologia. Com o auxílio do endoscópio e uma sonda de Foley, foram realizadas lavagens para remover o conteúdo, associando antibiótico com mucolítico diluído no soro. Como tratamento pós-operatório, foi formulada antibioticoterapia sistêmica, bem como lavagens diárias através da sonda com a mesma solução utilizada na cirurgia.(AU)

A 6-year-old horse presented unilateral nasal discharge and strong odor associated with poor athletic performance. After clinical evaluation and exams of sinoscopy, a primary sinusitis was confirmed, with a large amount of mucus-purulent content in the left paranasal sinuses, as well as a fracture in the nasal bone, being the possible cause of the pathology. With the aid of the endoscope and a Foley probe, washes were performed to remove the contents, associating antibiotic with mucolytic diluted in serum. As postoperative treatment a systemic antibiotic therapy was formulated, as well as daily washes through the probe with the same solution used in the surgery.(AU)

Assuntos

RESUMO

Background: The equine paranasal sinus have a complex anatomy and large compartiments. For this reason, deseasesthat affect these structures may develop for long periods before the animal show any clinical signs, making it difficult tostablish a definitive diagnosis and institute an adequate treatment. Usually, maxillary hematomas reports come from progression of ethmoidal hematomas, and the descriptions of primary maxillary hematomas are rare. This study aims to reportthe clinical features, diagnosis and treatment of a case of a maxillary hematoma not associated with ethmoidal turbinates.Case: An 8-year-old male horse, Mangalarga Paulista, was referred to the Centro de Apoio ao Ensino e Pesquisa FMVZUSP with history of nasal bleeding for over a year. The animal presented deformity on the right side of the face, with significant volume increase on the maxillary bone region and dull sound at percussion, in addition to great painfull sensibilitywhen palpated. The right nare had no airflow, suggesting complete obstruction of the right nasal cavity. In order to betterevaluate, endoscopic and radiographic exams were performed. At the radiographic exam, in ventrodorsal projection, itwas observed an increase of volume and radiopacity, occupying the right antimer of the nasal cavity, with left nasal septum deviation. In the right dorsoventral oblique projection, it was observed the filling of the rostral and caudal maxillarysinus with the content radiopacity as previously described. At endoscopy exam of the right nasal cavity, it was observeda rounded greenish structure on the middle meatus The diagnosis of maxillary paranasal sinus cist was suggested andsurgical removal, through maxillary sinusotomy was recommended. During the surgical procedure...

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RESUMO

Bilateral cysts in the frontal and caudal maxillary sinuses in a filly treated by endoscopic sinus surgery (sinoscopy) and triangulation technique are described. Sinoscopy has the advantage of being a minimally invasive technique and permits a complete inspection of the frontal and maxillary sinuses, which is not possible through flap sinusotomy.

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