title: Preoperative Predictors in Chronic Suppurative Otitis Media for Ossicular Chain Discontinuity: A Cross-Sectional Study.
abstract: Ossicular discontinuity may result from chronic suppurative otitis media and is usually detected intraoperatively. Our objective is to determine whether a preoperative audiogram can preoperatively predict the presence or absence of ossicular discontinuity.
  
  
  
  A cross-sectional study was prospectively run on our patients, aged 12-75 years, ultimately operated on for chronic suppurative otitis media. Preoperative audiograms were analyzed to measure frequency-specific air-bone gap (ABG) cutoff values. Intraoperatively, ossicular chain integrity was carefully checked. Logistic regression analysis was done to obtain a predictive model.
  
  
  
  A total of 270 patients (306 ears) were included. Frequency-specific ABG cutoff values can predict ossicular discontinuity, namely: high ABGs at 1,000 Hz (>27.5 dB) and 2,000 Hz (>17.5 dB) are the most reliable variables associated with ossicular discontinuity.
  
  
  
  Preoperative audiograms can predict the presence of ossicular discontinuity in chronic suppurative otitis media. Large ABGs at both 1,000 and 2,000 Hz can predict ossicular discontinuity with a great degree of certainty.
authors.affiliation: Department of Otorhinolaryngology, Head and Neck Surgery, Hamad Medical Corporation, Doha, Qatar.
authors.forename: Rashid
authors.initials: R
authors.lastname: Sheikh
authors.forename: Hassan
authors.initials: H
authors.lastname: Haidar
authors.forename: Hassanin
authors.initials: H
authors.lastname: Abdulkarim
authors.forename: Waqar
authors.initials: W
authors.lastname: Aslam
authors.forename: Aisha
authors.initials: A
authors.lastname: Larem
authors.forename: Ali
authors.initials: A
authors.lastname: Alsaadi
authors.forename: Abdulsalam
authors.initials: A
authors.lastname: Alqahtani
mesh_terms: D000328:Adult; D001301:Audiometry, Pure-Tone; D001844:Bone Conduction; D002908:Chronic Disease; D003430:Cross-Sectional Studies; D004429:Ear Ossicles / Q000503:physiopathology*; D004432:Ear, Middle; D005260:Female; D006314:Hearing Loss, Conductive / Q000503:physiopathology*; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D010035:Otitis Media, Suppurative / Q000503:physiopathology* / Q000601:surgery; D057234:Preoperative Period; D011379:Prognosis; D018058:Tympanic Membrane Perforation / Q000503:physiopathology* / Q000601:surgery; D014433:Tympanoplasty; D055815:Young Adult