Bronchoscopies:
FB were extracted using rigid Hopkins bronchoscope (Storz, 2.9 mm 37 cm)
or rigid ventilating bronchoscope or flexible bronchoscope (Olympus,
external diameter of 3.6 mm, working channel of 1.2 mm) with the
insertion of retrieval basket or grasping forceps, depend of the nature
and location of the foreign body. All the bronchoscopies were performed
in the OR, with a multidisciplinary team that included anesthesiology
specialist, ENT specialist and pediatric pulmonologist. Most patients
were deeply sedated, and were on oxygen supplement by reservoir mask.
The data about the procedures were taken from the OR reports. We
excluded the reports, where flexible and rigid bronchoscopy were done in
combination, those that the FB was in the gastrointestinal system and
those that FB was not found during the procedure.