title: [Revision endoscopic sinus surgery for recurrent nasal polyps].
abstract: OBJECTIVE
  To study the surgical effect and experience of revision endoscopic sinus surgery for the patients with recurrent nasal polyps.
  
  
  METHODS
  From Jul. 1997 to Oct. 1998, a subset of 21 cases with recurrent nasal polyps had been operated by the way of revision endoscopic sinus surgery. All the patients were operated bilaterally at the same time. The operation type included: total ethmoidectomy or sub-total ethmoidectomy, maxillary natural orifice enlargement and maxillary sinus pathological changes tissue eliminated by canine fossa access.
  
  
  RESULTS
  We have followed these patients for 6-12 months and evaluated surgical effect: 7 cases of 21 were cured, 8 were improved, 6 were of no effect, and the total effective rate was 71.4%. There are not any heavy complications in this subset.
  
  
  CONCLUSIONS
  Revision endoscopic sinus surgery is an effective way for recurrent nasal polyps patients, six anatomic marks proposed by May will do good for us to resect the pathological changes tissue thoroughly and prevent heavy complications as could as possible.
authors.affiliation: ENT & HN Surgery Department, Affiliated Sir Run Run Shaw Hospital of Medical College of Zhejiang University, Hangzhou 310016.
authors.forename: L
authors.initials: L
authors.lastname: Zhang
authors.forename: Z G
authors.initials: ZG
authors.lastname: Fan
authors.forename: W Y
authors.initials: WY
authors.lastname: Li
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004724:Endoscopy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009298:Nasal Polyps / Q000601:surgery*; D012008:Recurrence; D012189:Retrospective Studies