title: A clinical analysis of 21 cases of pen sheath bronchial foreign bodies in children.
abstract: OBJECTIVE
  To explore the clinical characteristics of children pen sheath bronchial foreign body, andto conclude rigid bronchoscope and self-made foreign body hook in the value of diagnosis and treatment in childrenpen sheath bronchial foreign body and operating considerations.
  
  
  METHODS
  21 pen sheath bronchial foreign body cases diagnosed and treated by rigid bronchoscopy were retrospective analyzed.
  
  
  RESULTS
  Under the assistance of self-made foreign body hook and latent speculum, 20 cases were successfully removed, 1 case was turned thoracotomy thoracic surgery.
  
  
  CONCLUSIONS
  Rigid bronchoscopy is an effective method to finally diagnose and treat pen sheath bronchial foreign body. Using self-made foreign body hook can significantly improve the success rate of surgery and reduce occurrence of complications.
authors.affiliation: Department of Otorhinolaryngology and Head & Neck Surgery, Shanghai Children Hospital, Shanghai Jiaotong University Shanghai, China.
authors.forename: Jiali
authors.initials: J
authors.lastname: Wu
authors.affiliation: Department of Otorhinolaryngology and Head & Neck Surgery, Shanghai Children Hospital, Shanghai Jiaotong University Shanghai, China.
authors.forename: Meizhen
authors.initials: M
authors.lastname: Gu
authors.affiliation: Department of Otorhinolaryngology, Wuhan Children Hospital Wuhan, China.
authors.forename: Zhinan
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Department of Otorhinolaryngology and Head & Neck Surgery, Shanghai Children Hospital, Shanghai Jiaotong University Shanghai, China.
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Li
keywords: Bronchial foreignbody; complications; foreign body hook; pen sheath; rigid bronchoscopy