title: [Research on failure reasons of surgical treatment of obstructive sleep apnea hypopnea syndrome and reoperation method].
abstract: OBJECTIVE
  To analyze failure reasons of surgical treatment of obstructive sleep apnea hypopnea syndrome (OSAHS), and explore the methods of reoperation.
  
  
  METHODS
  By selecting 27 patients, who accepted surgical treatment for OSAHS and recurred, we analyzed failure reasons and obstructive location by apneagraph, nasopharyngeal 3D-CT, electronic nasopharynlaryngoscope. Among them, 14 patients accepted reoperation, such as uvulopalatopharyngoplasty (UPPP), nasoendoscopic surgery, adenoidectomy, partial glossectomy, tracheotomy were applied matching to differential obstructive location. AHI, lowest SaO2, Epworth sleepiness scale (ESS), complication were recorded after 6 months.
  
  
  RESULTS
  After 6 months, their AHI decreased from 48.19 +/- 13.11 to 11.32 +/- 4. 42, ESS scores decreased from 12.93 +/- 4.60 to 4.93 +/- 1.44, P<0.05. Two of the 14 patients were cured, while the other 12 were efficient. No complications were observed.
  
  
  CONCLUSIONS
  Obstructive location judgement and proper surgical operation are the keys of the treatment. Preoperative AG sleep monitoring, nasopharyngeal 3D CT, electronic nasopharynlaryngoscope examination for determining blocking plane, the decision of surgery which is significant.
authors.affiliation: Department of Otorhinolaryngology, the First Affiliated Hospital, China Medical University, Shenyang, 110001, China.
authors.forename: Chen
authors.initials: C
authors.lastname: Zhao
authors.forename: Xiaotian
authors.initials: X
authors.lastname: Li
authors.forename: Yaqi
authors.initials: Y
authors.lastname: Liu
authors.forename: Xiangguo
authors.initials: X
authors.lastname: Cui
authors.forename: Zhongliang
authors.initials: Z
authors.lastname: Fu
authors.forename: Huaian
authors.initials: H
authors.lastname: Yang
authors.forename: Xuejun
authors.initials: X
authors.lastname: Jiang
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D010159:Palate / Q000601:surgery; D010160:Palate, Soft / Q000601:surgery; D010614:Pharynx / Q000601:surgery; D012008:Recurrence; D012086:Reoperation; D020181:Sleep Apnea, Obstructive / Q000517:prevention & control* / Q000601:surgery*; D016896:Treatment Outcome; D014609:Uvula / Q000601:surgery