title: Effects of inhalant anesthesia: tympanometry validation (R98/217).
abstract: OBJECTIVE
  The purpose of this study was to determine the best time to assess middle ear status with tympanometry for tympanometric instrument validation. The research question addressed three logical times for tympanometric reading prior to myringotomy.
  
  
  METHODS
  Fifty-one children, ranging in age from nine months to 10 years, were recruited for this investigation. Participants underwent inhalant anesthesia for myringotomy and grommet placement with or without adenoidectomy and/or tonsillectomy. Tympanometry data was analyzed across three time periods.
  
  
  RESULTS
  Findings indicated that tympanometric readings prior to anesthesia produced the most accurate results.
  
  
  CONCLUSIONS
  Implicated in findings, in order to ensure that tympanometric instruments are reliable, typanometric measurements should be taken prior to the administration of any anesthesia.
authors.affiliation: Special Education/Communication Disorders, P.O. Box 30001 MSC 3SPE, New Mexico State University, Las Cruces, NM 88003, USA. kchinn@nmsu.edu
authors.forename: Kathleen
authors.initials: K
authors.lastname: Chinn
authors.forename: Orval E
authors.initials: OE
authors.lastname: Brown
authors.forename: S C
authors.initials: SC
authors.lastname: Manning
mesh_terms: D000158:Acoustic Impedance Tests / Q000379:methods*; D000233:Adenoidectomy; D018685:Anesthetics, Inhalation / Q000008:administration & dosage*; D002648:Child; D002675:Child, Preschool; D005188:False Negative Reactions; D005189:False Positive Reactions; D005260:Female; D006221:Halothane / Q000008:administration & dosage*; D006801:Humans; D007223:Infant; D008297:Male; D008876:Middle Ear Ventilation; D009609:Nitrous Oxide / Q000008:administration & dosage*; D010033:Otitis Media / Q000503:physiopathology / Q000628:therapy; D038781:Otoscopy; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014068:Tonsillectomy
chemical_list: D018685:Anesthetics, Inhalation; D009609:Nitrous Oxide; D006221:Halothane