Favorable prognostic factors for long-term postoperative hearing results after canal tympanoplasty for congenital aural stenosis.
OBJECTIVE
We aimed to determine favorable prognostic factors for long-term postoperative hearing results after canal tympanoplasty for congenital aural stenosis (CAS).


METHODS
Retrospective case review.


METHODS
Tertiary referral center.


METHODS
Canal tympanoplasty for CAS was performed in 25 ears.


METHODS
Primary repair of CAS.


METHODS
The influences of the following factors on the success of surgery were assessed by univariate and multivariate logistic regression analyses: modified Jahrsdoerfer grading system total score; age at surgery; patterns of presentation (whether sporadic or syndromic); presence of external auditory canal (EAC) cholesteatoma; presence of ossicular fixation, including the malleus bar; presence of a partial atretic plate; exposure of the facial nerve at the tympanic portion; type of tympanoplasty; and each component of the modified Jahrsdoerfer grading system.


RESULTS
The univariate analysis revealed that the absence of EAC cholesteatoma (p = 0.029) and the presence of a partial atretic plate (p = 0.040) were significant predictive factors for favorable hearing prognosis, whereas the multivariate logistic regression analysis showed that an absence of EAC cholesteatoma was the most significant favorable predictive factor (p = 0.011), followed by anterolateral position of the malleus/incus complex with respect to the stapes as the second-most favorable factor (p = 0.021).


CONCLUSIONS
The absence of EAC cholesteatoma and anterolateral position of the malleus/incus complex with respect to the stapes are considered useful in predicting long-term favorable hearing results after canal tympanoplasty for CAS.
*Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, Faculty of Medicine, University of Tokyo, Tokyo; †Department of Otolaryngology and Head and Neck Surgery, University of Teikyo, Tokyo; and ‡Department of Otolaryngology and Head and Neck Surgery, University of Toho, Sakura, Chiba, Japan.
Takashi
T
Sakamoto
Yayoi S
YS
Kikkawa
Shu
S
Kikuta
Makoto
M
Kinoshita
Rumi
R
Ueha
Keigo
K
Suzukawa
Akinori
A
Kashio
Akinobu
A
Kakigi
Ken
K
Ito
Mitsuya
M
Suzuki
Tatsuya
T
Yamasoba
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D000013:Congenital Abnormalities / Q000473:pathology / Q000601:surgery*; D003251:Constriction, Pathologic / Q000601:surgery; D004423:Ear / Q000002:abnormalities* / Q000473:pathology / Q000601:surgery; D004424:Ear Canal / Q000002:abnormalities / Q000601:surgery*; D005260:Female; D006309:Hearing; D006801:Humans; D007188:Incus / Q000601:surgery; D016015:Logistic Models; D008297:Male; D008307:Malleus / Q000601:surgery; D008875:Middle Aged; D015999:Multivariate Analysis; D011237:Predictive Value of Tests; D011379:Prognosis; D012189:Retrospective Studies; D014432:Tympanic Membrane / Q000002:abnormalities / Q000601:surgery*; D014433:Tympanoplasty / Q000379:methods*; D055815:Young Adult