[Chlamydia infections in children with acquired cicatricial laryngeal and tracheal stenosis].

The examination for Chlamydial infection was carried out in 49 children aged from 1 year 10 months to 15 years (mean age 9 years 6 months +/- 3 years 8 months) with laryngotracheal cicatricial stenosis (CS) provoked by long nasotracheal intubation. Antibodies to C. pneumoniae in diagnostically significant titers were detected in 13 of 49 children (26.5%), to C. trachomatis--in 1 patient who had both infections. All the infected patients except the latter carried tracheal canules or were decanulated. Age of the patients with Chlamydial infection at the time of examination and development of CS was significantly older than of non-infected children. No significant difference was found between these patients by duration of the intubation and of the disease. Consideration of the fact that 12 of 13 children with C. pneumoniae infection carried tracheocanules suggests that the infection may be secondary.