Childhood histoplasmosis in Colombia : Clinical and laboratory observations of 45 patients

ABSTRACT: Histoplasmosis is an important mycosis in the Americas; and in children with no immune system abnormalities, histoplasmosis is typically a self-limited process. In contrast, in children with immune problems, disease manifestations are frequently more severe and include dissemination. From...

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Autores:
López Cano, Luisa Fernanda
Valencia, Yorlady
Tobón Orozco, Ángela María
Velásquez, Oscar
Santa Escobar, Cristian David
Cáceres Contreras, Diego Hernando
Restrepo Moreno, Ángela
Cano Restrepo, Luz Elena
Tipo de recurso:
Article of investigation
Fecha de publicación:
2016
Institución:
Universidad de Antioquia
Repositorio:
Repositorio UdeA
Idioma:
eng
OAI Identifier:
oai:bibliotecadigital.udea.edu.co:10495/24128
Acceso en línea:
http://hdl.handle.net/10495/24128
Palabra clave:
Histoplasmosis
Histoplasmosis
Diagnosis
Diagnóstico
Children
Niños
Rights
openAccess
License
http://creativecommons.org/licenses/by-nc/2.5/co/
Description
Summary:ABSTRACT: Histoplasmosis is an important mycosis in the Americas; and in children with no immune system abnormalities, histoplasmosis is typically a self-limited process. In contrast, in children with immune problems, disease manifestations are frequently more severe and include dissemination. From 1984 to 2010, a retrospective study of paediatric patients who had been diagnosed with histoplasmosis was performed. A total of 45 pediatric cases of histoplasmosis were identified. The most important risk factor was malnutrition (37%), followed by environmental exposure (33%). The patients exhibited pulmonary infiltrates (83%), fever (76%), cough, constitutional symptoms (38%), headache (35%), and lymph node hypertrophy (33%). Concerning the clinical forms, 64% of the patients presented with the progressive disseminated form that frequently affected the central nervous system (48%). Diagnostic laboratory tests indicated that the cultures were positive for 80% of the patients, the agar gel immunodiffusion was reactive in 95%, the M band of the precipitate was more commonly observed (81%), and the complement fixation tests were reactive in 88% of the patients. The timely diagnosis of histoplasmosis is important, and for this reason, it is hoped that the results of this study will lead pediatricians toward a better understanding of this mycosis in children.