title: [The analysis of protracted inflammation after endoscopic surgery].
abstract: OBJECTIVE
  To study the causes of late inflammation after endoscopic surgery.
  
  
  METHODS
  Sixty-five patients of protracted inflammation after endoscopic surgery were investigated, by observing the pathologic spot and matched control of drug.
  
  
  RESULTS
  The orbit carton and aperture of frontal sinus and maxillary sinus were main spots of protracted inflammation. The drugs had no effect on protracted inflammation.
  
  
  CONCLUSIONS
  The main cause of late inflammations is related to the high risk regions in endoscopic surgery.
authors.affiliation: Department of Otolaryngology, the Affiliated Hospital of Medical College, Qingdao University, Qingdao, 266003, China.
authors.forename: Niankai
authors.initials: N
authors.lastname: Zhang
authors.forename: Na
authors.initials: N
authors.lastname: Li
mesh_terms: D000328:Adult; D004724:Endoscopy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009298:Nasal Polyps / Q000473:pathology* / Q000601:surgery; D010256:Paranasal Sinuses / Q000473:pathology* / Q000601:surgery; D011183:Postoperative Complications