Paediatrics and international child health · 2016
Should parasitic disease be investigated in immigrant children with relative eosinophilia from tropical and sub-tropical regions?
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Belhassen-García Moncef, Pardo-Lledias Javier, Pérez Del Villar Luis, Muro Antonio, Velasco-Tirado Virginia, Muñoz Bellido Juan Luis, Vicente Belén, Blázquez de Castro Ana, Cordero-Sánchez Miguel
Аннотация
BACKGROUND: Immigrants to Spain are mainly from low- and middle-income countries, and around 20% are children. Absolute eosinophilia is defined as >0.45×109 eosinophilic leucocytes/L of peripheral blood. Absolute eosinophilia in travelers and immigrants from tropical and sub-tropical areas is frequently associated with parasitic diseases. However, the significance of relative eosinophilia in immigrant children, defined as >5% eosinophilic leucocytes in those with <0.45×109 eosinophils/L, is unresolved.
OBJECTIVES: To describe the importance of relative eosinophilia in a cohort of immigrant children (<18 years) from sub-Saharan Africa, North Africa and Latin America.
METHODS: 176 immigrant children without absolute eosinophilia were prospectively evaluated.
RESULTS: 25 of them (14.2%) had relative eosinophilia. 10 patients with relative eosinophilia had no diagnosis. 15 with relative eosinophilia (60%) were diagnosed with a parasitic disease, 7 (46.7%) of whom had only one parasite, while co-infection accounted for 8 of the 15 cases (53.3%). Of the parasitic infections, the most frequent causes of relative eosinophilia were filariasis spp. (7/15, 46.7%), strongyloides spp. (5/15, 33.3%), schistosoma spp. (4/15, 26.6%) and Ascaris lumbricoides (2/15, 13.3%).
CONCLUSION: The findings suggest that relative eosinophilia is frequently associated with helminthic infection in immigrant children from tropical and sub-tropical areas, so a thorough parasitological study is highly advisable in this group of patients.
OBJECTIVES: To describe the importance of relative eosinophilia in a cohort of immigrant children (<18 years) from sub-Saharan Africa, North Africa and Latin America.
METHODS: 176 immigrant children without absolute eosinophilia were prospectively evaluated.
RESULTS: 25 of them (14.2%) had relative eosinophilia. 10 patients with relative eosinophilia had no diagnosis. 15 with relative eosinophilia (60%) were diagnosed with a parasitic disease, 7 (46.7%) of whom had only one parasite, while co-infection accounted for 8 of the 15 cases (53.3%). Of the parasitic infections, the most frequent causes of relative eosinophilia were filariasis spp. (7/15, 46.7%), strongyloides spp. (5/15, 33.3%), schistosoma spp. (4/15, 26.6%) and Ascaris lumbricoides (2/15, 13.3%).
CONCLUSION: The findings suggest that relative eosinophilia is frequently associated with helminthic infection in immigrant children from tropical and sub-tropical areas, so a thorough parasitological study is highly advisable in this group of patients.