Conclusions
The incidence of LRTI caused by
TFBA is very high. However, the type and history of TFBA,
cervicothoracic CT diagnosis, embedded location, clinical symptoms,
weight, sex and age cannot predict its occurrence. There is no
significant difference in the incidence of LRTI between organic and
inorganic TFBA. Symptoms, cervicothoracic CT diagnosis and embedded
location can only indicate the severity of the TFBA. The retention time
of TFBA is the only indicator of the LRTI. Children with TFBA for a long
retention time should be paid more attention in clinic.