title: [A clinic study on treatment of chronic frontal sinusitis with endoscopic surgery and permanent implantation of a place holder].
abstract: OBJECTIVE
  To investigate the characteristics of chronic frontal sinusitis and to improve the clinical therapeutic efficacy.
  
  
  METHODS
  Sixty-eight patients (130 sides) who underwent endoscopic frontal sinus surgery in our department were randomly divided into three groups: Group 1 included 23 patients (43 operations) underwent endonasal sinus surgery with the frontal sinus opened and drained by two pipes of silicone for 6 months. Group 2 included 24 patients (45 operations) treated as group 1 but added injection of beclomethasone (approximately 1 cc, 94 mcg/100 microliters). Group 3 included 21 patients (42 operations) with only frontal sinus opened.
  
  
  RESULTS
  After an average follow-up of 18 months, the cure rate in group 1, group 2 and group 3 was 93%, 93% and 71% respectively.
  
  
  CONCLUSIONS
  The ultimate success or failure of frontal sinus surgical procedures, whether they are endonasal or external, depends on the restenosis of the frontal sinus outflow tract or neo-ostium postoperatively. Long-term stenting for a period of several months will significantly reduce the possibility of restenosis. We recommend that this type of management be considered in difficult revision cases and before performing an external operation.
authors.affiliation: Department of Otolaryngology, Liaocheng People's Hospital, Liaocheng 252000, China. entfriend@163.com
authors.forename: Zhishen
authors.initials: Z
authors.lastname: Li
authors.forename: Guohua
authors.initials: G
authors.lastname: Shi
authors.forename: Shilong
authors.initials: S
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D000328:Adult; D002408:Catheters, Indwelling; D002908:Chronic Disease; D004322:Drainage / Q000379:methods*; D004724:Endoscopy; D005260:Female; D005626:Frontal Sinus / Q000601:surgery*; D015522:Frontal Sinusitis / Q000601:surgery*; D006801:Humans; D008297:Male; D013517:Otorhinolaryngologic Surgical Procedures / Q000379:methods; D016896:Treatment Outcome; D055815:Young Adult