Prospective blinded study of computed tomography in congenital aural atresia

Favorable Prognostic Factors for Long-term Postoperative Hearing Results After Canal Tympanoplasty for Congenital Aural Stenosis

“…In contrast, regarding CAS, only 1 report revealed that cases without PAP and ossicular fixation showed significantly better audiologic results compared to those of cases with PAP or ossicular fixation (8). The present study revealed that the presence of PAP was a significant favorable factor in univariate analysis but not so in the multivariate analysis.…”

“…Yellon and Branstetter (8) refined the system by adding 3 components. The total scores calculated by the original and modified Jahrsdoerfer grading system are useful for selecting a proper candidate for surgery in CAA (7,8) as well as CAS in terms of short-term hearing prognosis. The Jahrsdoerfer grading system was reported to be useful in predicting hearing prognosis 1 year after atresiaplasty in CAA (7).…”

Anatomic Variants on Computed Tomography in Congenital Aural Atresia

“…7 Awareness of these anatomic findings is useful for teaching temporal bone anatomy. Clinical correlation with some anatomic variations will never be possible.…”

“…We evaluated Jahrsdoerfer criteria, new/modified considerations, and ISJ angle. 7,8 The following were the specific anatomic criteria and associated points awarded during evaluation of the CT scans of the temporal bones in CAA ( Table 1): 1. Position of tegmen mastoideum.…”

The extent of inferior displacement of the mastoid tegmen is related to the severity of congenital aural atresia

“…High-resolution temporal bone computed tomography (TBCT) analysis is currently the most important radiological test for standard preoperative evaluation before atresiaplasty [7][8][9][10][11][12]. TBCT analysis is based on the grading system developed by Jahrsdoerfer et al [13].…”