title: Acoustical factors of noise created by suctioning middle ear fluid.
abstract: OBJECTIVE
  To quantify the intensity, spectral content, and duration of exposure for suction noise created during aspiration of middle ear fluid following myringotomy.
  
  
  METHODS
  Case series.
  
  
  METHODS
  Tertiary care center.
  
  
  METHODS
  Convenience sample of 245 myringotomies performed on 124 patients ranging in age from 6 months to 14 years (mean age, 2 years 8 months).
  
  
  METHODS
  Intensity, spectral content, and duration of exposure associated with suction noise were defined by electroacoustic analysis of high-fidelity tape recordings of the noise created during suctioning middle ear fluid.
  
  
  RESULTS
  The intensity of suction noise ranged from 74 to 117 dB; most acoustic energy was concentrated in the frequency range between 1.7 and 6.0 kHz, and the duration of exposure varied from 4 to 23 seconds.
authors.affiliation: Department of Otorhinolaryngology and Human Communication, Children's Hospital of Philadelphia.
authors.forename: R F
authors.initials: RF
authors.lastname: Wetmore
authors.forename: W J
authors.initials: WJ
authors.lastname: Henry
authors.forename: D F
authors.initials: DF
authors.lastname: Konkle
mesh_terms: D000162:Acoustics; D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008876:Middle Ear Ventilation; D009622:Noise; D010034:Otitis Media with Effusion / Q000601:surgery*; D011677:Punctures; D013018:Sound Spectrography; D013396:Suction; D014432:Tympanic Membrane / Q000601:surgery*