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Comparison of coproparasitological techniques for the diagnosis of intestinal helminths in Lambayeca children

Carrasco-Solano F.A.; Cruz-López C.Y.S.; Vergara-Espinoza M.A.; Sánchez-Fernandez M. · Gaceta Medica Boliviana (2023) · DOI: 10.47993/gmb.v46i1.636

Resumen

Helminths transmitted through the soil can affect the educational performance and normal development of children. Objective: to compare five coproparasitological techniques for the diagnosis of intestinal geohelminths in Lambayecan children. Methods: Descriptive cross-sectional study. 150 stool samples were collected from children residing in the districts of Túcume and Lambayeque in the department of Lambayeque (Peru), during the year 2021. The boys and girls included were between 4 and 12 years of age. Prior to the collection, the appropriate preclinical conditions are explained to the parents and guardians of the minors. The sensitivity, specificity, concordance, positive and negative predictive value of the Baerman, rapid sedimentation, Willis Molloy, Sheathers Sugar and direct stool examination techniques were calculated. Parents and guardians authorized the participation of minors in the study. The study was approved by the ethics committee of the National University of Jaén. Results: the prevalence of intestinal geohelminths was 20,7%, 19,3% and 18,0% with the Baerman, rapid sedimentation and direct examination techniques, respectively. In addition, the Baerman and rapid sedimentation techniques reported higher sensitivity, specificity, positive and negative predictive value. A high concordance index was obtained for the Baerman (0,894) and rapid sedimentation (0,891) techniques. Conclusions: the Baerman and rapid sedimentation techniques allowed greater recovery of parasites compared to direct stool examination. In addition, the species of intestinal geohelminths most identified in children from Lambaye were Ascaris lumbricoides, Hymenolepis nana and Ancilostomideos.

Instituciones: Universidad Nacional Pedro Ruiz Gallo; Universidad Nacional de Jaén