Estudo comparativo entre os métodos de Stoll e Kato quantitativo

Abstract

A autora realizou a contagem de ovos por gr. de fezes em 129 amostras de fezes pelos métodos de Kato e de Stoll, incluindo 100 casos de parasitismo por Ascaris lumbricoides, 100 por Trichuris trichiura, 70 por ancilostomideos e 40 por S. mansoni. Os resultados foram avaliados estatisticamente, evidenciando-se idênticos com as duas técnicas no que se refere a Ascaris lumbricoides, T. trichiuris e S. mansoni, mostrando-se, no entanto, o método de Stoll mais adequado para a contagem de ovos de ancilostomideos.The author examined 129 specimens of faeces using the techniques of Kato and Stoll. 100 cases of Ascaris lumbricoides infection, 100 of Trichocephalus trichiurus, 70 of hookworm infection and 40 of Schistosoma mansoni were detected. The number of eggs eliminated per gram of faeces was determined using the two methods. The results were statistically analysed using the comparative tests for the two methods at a significance levei of 0,05. The results showed that, for counting eggs, the two techniques presented equal results for A lumbricoides, T. trichiurus and Schistosoma mansoni, but the Stoll technique was more sensitive for hookworms