title: Risk factors for preoperative respiratory complications in children with tracheobronchial foreign bodies.
abstract: OBJECTIVE
  To identify risk factors for preoperative respiratory complications associated with tracheobronchial foreign body aspiration (TFBA) by retrospectively analysing paediatric cases presenting with or without complications.
  
  
  METHODS
  Paediatric patients who presented with TFBA and were admitted to hospital were enrolled in the study. Patients were divided into two groups based on occurrence of preoperative respiratory complications as confirmed by computed tomography. Age, sex, TFBA symptoms, type of foreign body, retention timeand location of the foreign body were documented and compared between the groups.
  
  
  RESULTS
  In total, 223 children were included: group A (n = 161) included those with respiratory complications; group B (n = 62) included those without respiratory complications. Univariate and multivariate analyses found that type of foreign body, and symptoms differed significantly between the two groups.
  
  
  CONCLUSIONS
  Respiratory complications of TFBA in children were correlated with the type of foreign body and symptoms.
authors.affiliation: Department of Otolaryngology, Ningbo Women and Children's Hospital, Ningbo, Zhejiang Province, China yangyihuizh@163.com.
authors.forename: Yi-Hui
authors.initials: YH
authors.lastname: Yang
authors.affiliation: Department of Otolaryngology, Ningbo Women and Children's Hospital, Ningbo, Zhejiang Province, China.
authors.forename: Xin-Gang
authors.initials: XG
authors.lastname: Zhang
authors.affiliation: Department of Otolaryngology, Ningbo Women and Children's Hospital, Ningbo, Zhejiang Province, China.
authors.forename: Jian-Li
authors.initials: JL
authors.lastname: Zhang
authors.affiliation: Department of Otolaryngology, Ningbo Women and Children's Hospital, Ningbo, Zhejiang Province, China.
authors.forename: Yong-Bo
authors.initials: YB
authors.lastname: Zhang
authors.affiliation: Department of Otolaryngology, Ningbo Women and Children's Hospital, Ningbo, Zhejiang Province, China.
authors.forename: Cui-Ping
authors.initials: CP
authors.lastname: Kou
mesh_terms: D001980:Bronchi / Q000473:pathology / Q000503:physiopathology* / Q000601:surgery; D001999:Bronchoscopy; D002648:Child; D002675:Child, Preschool; D005260:Female; D005547:Foreign Bodies / Q000000981:diagnostic imaging* / Q000473:pathology / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D007223:Infant; D001239:Inhalation; D008297:Male; D015999:Multivariate Analysis; D057234:Preoperative Period; D012189:Retrospective Studies; D012307:Risk Factors; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D014132:Trachea / Q000473:pathology / Q000503:physiopathology* / Q000601:surgery
keywords: Children; complication; preoperative; risk factor; tracheobronchial foreign body