Acta oto-laryngologica · 2026
Correlation between hearing levels and temporal bone malformation in patients with bilateral aural atresia after implantation of an active transcutaneous bone conduction hearing device.
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Yang Jinsong, Wang Danni, Ren Ran, Chen Peiwei, Zhao Shouqin
Аннотация
BACKGROUND: Congenital aural atresia is characterized as malformation of the tympanic bone. Any factor affecting the bone conduction sound perception may influence the hearing level of patients aided with a Bonebridge.
OBJECTIVES: This study aimed to investigate whether hearing levels correlated with temporal bone malformations in patients with bilateral aural atresia aided with Bonebridge.
MATERIAL AND METHODS: In this single-center, retrospective study, 110 patients with bilateral congenital aural atresia were evaluated. The Jahrsdoerfer score (J-score) was used to grade malformations of the temporal bone. Patients were divided into three groups, namely, severe (J-score, 0-3), moderate (J-score 4-6), and mild (J-score 7-10).
RESULTS: Groups defined by J-score correlated positively with the SFT, SRT, and WRS (p < 0.001). Specifically, patients with a J-score ≥ 7 had significantly better hearing improvements than those with a J-score < 7. Patients with oval/round window atresia had significantly poorer hearing levels under both pre-operative and Bonebridge-aided conditions.
CONCLUSIONS: Patients with a score ≥ 7 had significantly preoperative better bone conduction and postoperative aided hearing. The development of oval/round window connection to the middle and inner ear is the most important predictor of hearing outcomes for patients with congenital aural atresia.
OBJECTIVES: This study aimed to investigate whether hearing levels correlated with temporal bone malformations in patients with bilateral aural atresia aided with Bonebridge.
MATERIAL AND METHODS: In this single-center, retrospective study, 110 patients with bilateral congenital aural atresia were evaluated. The Jahrsdoerfer score (J-score) was used to grade malformations of the temporal bone. Patients were divided into three groups, namely, severe (J-score, 0-3), moderate (J-score 4-6), and mild (J-score 7-10).
RESULTS: Groups defined by J-score correlated positively with the SFT, SRT, and WRS (p < 0.001). Specifically, patients with a J-score ≥ 7 had significantly better hearing improvements than those with a J-score < 7. Patients with oval/round window atresia had significantly poorer hearing levels under both pre-operative and Bonebridge-aided conditions.
CONCLUSIONS: Patients with a score ≥ 7 had significantly preoperative better bone conduction and postoperative aided hearing. The development of oval/round window connection to the middle and inner ear is the most important predictor of hearing outcomes for patients with congenital aural atresia.