title: Test-retest reliability of drug-induced sleep endoscopy.
abstract: OBJECTIVE
  To determine the test-retest reliability of drug-induced sleep endoscopy (DISE).
  
  
  METHODS
  Prospective cohort study. Patients with OSA underwent two separate DISE examinations. The following outcomes were measured: a global assessment of obstruction at the palate and/or hypopharynx; the degree of obstruction at the palate and hypopharynx; and the contribution of individual structures (palate, tonsils, tongue, epiglottis, and lateral pharyngeal walls) to obstruction.
  
  
  RESULTS
  Thirty-two patients underwent two separate DISE examinations. The preoperative sleep study apnea-hypopnea index was 40.7 +/- 21.1, and the lowest oxygen saturation was 79.8 +/- 17.4 percent. Point estimates for the intraclass correlation coefficient analogs related to palatal obstruction ranged from 0.41 to 0.89; related to the hypopharyngeal airway, the point estimates ranged from 0.57 to 0.84.
  
  
  CONCLUSIONS
  The test-retest reliability of DISE appears good, especially in the evaluation of the hypopharyngeal airway. Larger studies can generate more precise confidence interval estimates and test the generalizability of these findings.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, CA, USA.
authors.forename: Krista
authors.initials: K
authors.lastname: Rodriguez-Bruno
authors.forename: Andrew N
authors.initials: AN
authors.lastname: Goldberg
authors.forename: Charles E
authors.initials: CE
authors.lastname: McCulloch
authors.forename: Eric J
authors.initials: EJ
authors.lastname: Kezirian
mesh_terms: D000328:Adult; D000368:Aged; D018686:Anesthetics, Intravenous / Q000008:administration & dosage*; D004724:Endoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015742:Propofol / Q000008:administration & dosage*; D011446:Prospective Studies; D015203:Reproducibility of Results; D020181:Sleep Apnea, Obstructive / Q000175:diagnosis* / Q000503:physiopathology; D016896:Treatment Outcome
chemical_list: D018686:Anesthetics, Intravenous; D015742:Propofol