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  • Title: [Etiology of acute respiratory infections in 87 hospitalized children].
    Author: Esteban RE, Jiménez AM, Orozco AL, Gironés IG, Sánchez PG, García FS.
    Journal: Rev Clin Esp; 1996 Feb; 196(2):82-6. PubMed ID: 8685493.
    Abstract:
    OBJECTIVE: The aim of this study was to assess the effectiveness of two microbiologic methods: viral culture and serology for the etiologic study of acute respiratory infections in children under 14 years of age admitted to our hospital. PATIENTS: From January 1992 to December 1993, a prospective study was carried out in 87 patients with a mean age of two years with the following diagnosis: upper respiratory tract infections (URTI) 19, laryngitis 3, bronchitis 18, bronchiolitis 18, and pneumonia 29. METHOD: Nasopharyngeal aspirates were collected for virologic culture on cell monolayers in 87 patients. Serologic studies by complement fixation test were carried out in 42 patients older than six months. RESULTS: The etiologic agent was detected in 54 (62%) of the 87 patients, being the most frequent the respiratory sincitial virus (VRS) with 18 cases (20%), followed by adenovirus (ADV) in 17 (19%) and Mycoplasma pneumoniae in 9 cases (11%). Viral culture was positive in 32 (37%), being ADV in 14 (41%), and RSV in 9 (26%). Significative serologic studies were obtained in 25 (60%) of the 42 studied patients, with VRS in 9 (32%) and M. pneumoniae in 9 (32%). Concerning clinical diagnosis, the major effectiveness corresponded to serology in pneumonia (76%), and to viral culture in URTI (63%). CONCLUSION: Viral culture and serology are useful methods for the detection of etiologic agents in acute respiratory infections. The serology effectiveness increases with age (p < 0.01) and the severity of the clinical diagnosis. Both methods have limited usefulness from clinical point of view.
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