Utilização da videoroscopia na investigação de lesões orais

• Ano de defesa: 2007
• Autor(a) principal: Calandro, Terezinha Lisieux Lopes
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Programa de Pós-graduação em Patologia; Patologia
• Palavras-chave em Português: Diagnóstico oral; Oroscopia; Videoroscopia; Azul de toulidina; Histopatologia; Medicina; Patologia Buco-dental; Medicina bucal; Histopatologia oral; Diagnóstico por imagem; CNPQ::CIENCIAS DA SAUDE::MEDICINA
• Link de acesso: https://app.uff.br/riuff/handle/1/17880

A precise and safe evaluation as to the existence, behavior and the evolution of lesions in the oral cavity still isn t consolidated in the clinical practice, and when it doesn t show conclusive aspects of the diagnosis, it needs to be complemented by auxiliary methods. The videoroscopy, for being a simple, innocuous exam, makes it easy to access all the regions of the mouth, it demands little time and is comfortable to the patient. The objective of this essay is to evaluate the utilization of the gathered resources of the amplification and the intense lighting of the intraoral video camera in the diagnosis of the oral lesions, based on the comparison of the images obtained by means of this exam with the results of the toluidine blue and the histopathological diagnosis. The sample was constituted of 180 examined patients, from which 101 showed 110 clinically identifiable lesions, which in its turn 105 were examined in a biopsy. The lesions were evaluated by the conventional clinical exam, aided by the videoroscopy done with the IntraCam apparatus, model V4 from Active Ware Projects and Products, which allows a 28X magnification and intense lighting. Afterwards, several images of each lesion were captured and recorded in a memory card which allowed the transfer and storage of the images in a computer. The conformation of the lesion, its homogeneity or heterogeneity, colors, tones, shades, characteristics of the surface, contour and limits were described, as well as if the lesion was observed in both exams or if it was observed first by the videoroscopy, which in this study allowed the initial visualization of eight lesions, so far only seen through oroscopy. The histopathological diagnosis was considered the gold-standard for the definition of the diagnosis of the lesion. The importance of this essay consisted in the comparison of the images captured by the videoroscopy with other applied exams, such as the toluidine blue and the conventional clinical exam, which correlation allowed the basis for the analysis of the videoroscopy as an auxiliary in the diagnosis of the oral lesions. Out of the 110 lesions found, 31 were positive to the toluidine blue application, 20 being local and 11 diffuse, but, if the toluidine blue application were the only auxiliary method to the clinical exam used to diagnose epithelial precursor lesions, there would be a failure in the diagnosis of 7 lesions that could only be seen after the videoroscopy. The lesions which underwent biopsy were gathered in eight groups: white lesions, carcinomas, inflammatory fibrous hyperplasia, mucoceles, papillomas, pyogenic granulomas, a group entitled other lesions (lesions of low occurrence) and another called non-biopsy tested lesions . There was a match in 93 lesions between this histopathological diagnosis and the clinical diagnosis aided by the videoroscopy. We conclude that the videoroscopy aids in the visualization of the oral lesions mainly in difficult areas to reach, in incipient lesions, with little thickness and/or little size; that the captured and stored images of the lesions of this sample, when compared to the histopathological aspects, showed criteria that, to be established as videoroscopic of diagnosis criteria, is necessary to be analyzed more deeply, and that the videoroscopy aids the following of the oral lesions. We suggest that the videoroscopy be included in the routine clinical exam, mainly in the stomatology, with the objective of facilitating and aiding the diagnosis, follow-up and the choice of the best therapeutic conduct, emphasizing the capacity of the videoroscopy to detect incipient lesions, difficult to be observed by means of the visual exam. The videoroscopy, thus, corroborates and confirms the importance of the employment of high-end technology in the health area.