title: [Maxillomandibular advancement for obstructive sleep apnea/hypopnea syndrome].
abstract: OBJECTIVE
  To explore effectiveness of maxillomandibular advancement (MMA) in the treatment of obstructive sleep apnea/hypopnea syndrome (OSAHS).
  
  
  METHODS
  MMA was performed in 10 OSAHS patients with mandibular dysplasia diagnosed by mandibular protrusion angle (SNB) < 75 degrees and a posterior airway space (PAS) < 11 mm. Six patients had uvulopalatopharyngoplasty (UPPP) also. Six patients had over 6 months postoperative follow up.
  
  
  RESULTS
  The blood loss was about 250-600 ml in the operation, and the serious complications didn't happen. The patients were satisfied with the postoperative facial change. Based on success criteria of 2009, of 5 patients showed highly responsive result and 1 patient was responsive (valid). rate was 83% and the responsive rate 100%. The snoring loudness score and Epworth sleepy score were reduced from preoperative 8 (6-10) and 15 (11-24) to postoperative 2 (0-4) and 5 (1-8). AHI was reduced from preoperative 52.2 (23.7-83.8) to postoperative 12.6 (7.6-31.8), lowest mean oxygen saturation increased from 0.64 (0.57-0.83) to 0.82 (0.78-0.93). Percentage of time with oxyhemoglobin saturation below 0.90 (CT90) reduced from 21.0% (12.0%-37.2%) to 2.0% (0%-8.0%).
  
  
  CONCLUSIONS
  MMA is effective for the OSAHS patients with mandibular dysplasia.
authors.affiliation: Department of Otorhinolaryngology, Affiliated Shanghai Sixth People's Hospital of Shanghai Jiao Tong University, 200233, China.
authors.forename: Hong-Liang
authors.initials: HL
authors.lastname: Yi
authors.forename: Shan-Kai
authors.initials: SK
authors.lastname: Yin
authors.forename: Jian
authors.initials: J
authors.lastname: Guan
authors.forename: Yu-Jun
authors.initials: YJ
authors.lastname: Zhang
authors.forename: Bin
authors.initials: B
authors.lastname: Chen
authors.forename: Hong-Min
authors.initials: HM
authors.lastname: Wu
authors.forename: Xu-Lan
authors.initials: XL
authors.lastname: Tang
authors.forename: Ting
authors.initials: T
authors.lastname: Chen
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D019186:Mandibular Advancement / Q000379:methods*; D008875:Middle Aged; D020181:Sleep Apnea, Obstructive / Q000601:surgery*; D016896:Treatment Outcome