Our objective was to compare the clinical efficacy of azithromycin vs. erythromycin and amoxicillin in the treatment of presumed bacterial community-acquired pneumonia in ambulatory children, and to evaluate the etiologies of these illnesses. One hundred and ten children, aged 1 month to 14 years, were enrolled between January 1996-January 1999. Children were distributed into two groups according to clinical and radiological patterns: classic or atypical pneumonia. Patients with classic pneumonia were randomly assigned to receive oral amoxicillin 75 mg/kg/day for 7 days, or azithromycin 10 mg/kg/day for 3 days; patients with atypical pneumonia received azithromycin 10 mg/kg/day for 3 days, or erythromycin 50 mg/kg/day for 14 days. Chest X-ray, clinical, and laboratory parameters were obtained on enrollment. Clinic visits were performed on days 3, 7, and 14, and chest X-ray follow-up on days 7 and 14. Microbiological diagnosis of classic pathogens was based on blood and bronchial secretion cultures. The diagnosis of atypical pathogens C. pneumoniae, C. trachomatis, and M. pneumoniae was based on PCR and serologic tests.Forty-seven children met the criteria for classic pneumonia (23 children received azithromycin, and 24 received amoxicillin), and 59 children had atypical pneumonia (33 children were treated with azithromycin, and 26 with erythromycin). Demographic characteristics at enrollment were similar between children with classic pneumonia treated with azithromycin and erythromycin and children treated with azithromycin and erythromycin for atypical pneumonia. However, on day 7, children with classic pneumonia who received azithromycin normalized their chest X-ray more often than those who received amoxicillin (81.0% vs. 60.9%, respectively, P = 0.009). The same was true for children with atypical pneumonia; their chest X-rays had normalized by day 14 (100% in those with azithromycin vs. 81% in those with erythromycin, P = 0.059). Also, children with atypical pneumonia treated with azithromycin had earlier cessation of cough than children treated with erythromycin (3.6 +/- 1.9 vs. 5.5 +/- 3.6 days respectively, P = 0.02). There were only three children with side effects (mild diarrhea, all in the erythromycin group). Etiological agents were identified in 41% of children. In conclusion, azithromycin is an effective therapeutic option for the treatment of community-acquired classic and atypical pneumonia in children.
The incidence of Chlamydia pneumoniae in community‐acquired pneumonia in children was studied prospectively in 112 children aged 1 mo to 14 y. Diagnosis of C. pneumoniae was performed by polymerase chain reaction (PCR) on nasopharyngeal aspirates and serology by the microimmunofluorescence test on a single serum specimen. Three (2.7%) cases of pneumonia due to this agent were diagnosed by both PCR and serology. C. pneumoniae was not found in any of 62 children below 5 y of age. In the age group 5‐8 y, only 1/30 (3%) was found positive, and in the age group 9‐14 y, C. pneumoniae was diagnosed in 2/20 (10%) children.
Conclusion: Although the number of enrolled patients is small, and the diagnostic techniques used may have some limitations, the results of this study suggest that C. pneumoniae plays a minor role in the aetiology of pneumonia in children less than 9 y of age in our country. However, it should be considered as a potential agent in pneumonia in older children.
En los últimos años, ha habido un aumento sostenido del uso de terapias inmunomoduladoras como las terapias biológicas y en un período más reciente, de las terapias con moléculas pequeñas. Estos tratamientos constituyen un factor de riesgo más para enfermar de tuberculosis en adultos y aunque en menor grado, también en niños, especialmente con el uso de anti TNF-a, por lo que antes de iniciar una terapia biológica, hay que descartar la tuberculosis activa y la latente. En el tratamiento de una tuberculosis activa producida por un biológico se debe prolongar la etapa de continuación a 9 meses. Es importante el seguimiento clínico prolongado en años de quienes usan o han completado el uso de estas terapias. Hay que posponer la vacunación BCG en los hijos de madres que usaron terapias biológicas durante la gestación hasta la edad 6 a 12 meses de los niños. El foco de esta revisión está centrado en la tuberculosis por progresión de una forma latente a una activa o por un contacto estrecho con una persona con tuberculosis pulmonar en pacientes que reciben terapias biológicas anti TNF alfa de uso inmunoreumatológico.
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