title: Relations between obstructive sleep apnea syndrome and specific cephalometric measurements, body mass index, and apnea-hypopnea index.
abstract: OBJECTIVE
  To evaluate the relation of specific cephalometric landmarks, body mass index, and the apnea-hypopnea index in patients diagnosed with obstructive sleep apnea syndrome (OSAS) and treated with functional upper airway surgery.
  
  
  METHODS
  This was a retrospective cohort analysis of 89 consecutive patients over a 3-year period diagnosed with overnight-attended polysomnogram-confirmed OSAS who underwent functional upper airway surgery. Five predetermined specific cephalometric parameters were analyzed: posterior airway space, soft palate length, hyoid to mandibular plane angle, sella-nasion to mandibular plane angle, and gonion to gnathion length. Simple and multiple linear regression analyses were used to establish a relation between independent and dependent variables.
  
  
  RESULTS
  There were no statistically significant associations between the 5 specific cephalometric craniofacial structures in combination with other potential confounders, body mass index and apnea-hypopnea index, and the presence of OSAS.
  
  
  CONCLUSIONS
  No one skeletal or soft tissue parameter can be directly linked to OSAS.
authors.affiliation: Division of Oral and Maxillofacial Surgery, Allegheny General Hospital, West Penn Allegheny Health System, Pittsburgh, PA, USA.
authors.forename: Joseph E
authors.initials: JE
authors.lastname: Cillo
authors.forename: Stone
authors.initials: S
authors.lastname: Thayer
authors.forename: Richard M
authors.initials: RM
authors.lastname: Dasheiff
authors.forename: Richard
authors.initials: R
authors.lastname: Finn
mesh_terms: D000328:Adult; D000368:Aged; D059925:Anatomic Landmarks / Q000473:pathology; D015992:Body Mass Index; D002508:Cephalometry / Q000379:methods*; D002680:Chin / Q000473:pathology; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006928:Hyoid Bone / Q000473:pathology; D008297:Male; D008334:Mandible / Q000473:pathology; D008875:Middle Aged; D009295:Nasal Bone / Q000473:pathology; D010160:Palate, Soft / Q000473:pathology; D010614:Pharynx / Q000473:pathology; D017286:Polysomnography; D012189:Retrospective Studies; D012658:Sella Turcica / Q000473:pathology; D020181:Sleep Apnea, Obstructive / Q000145:classification / Q000473:pathology* / Q000601:surgery