Congenital aural stenosis surgery offers a reliable path to long-term hearing restoration for patients with narrowed ear canals. Recent clinical findings underscore the effectiveness of the endaural approach combined with canaloplasty and tympanoplasty. This surgical strategy aims to widen the ear canal and improve conductive hearing. Researchers recently evaluated these outcomes over a decade-long period. Their results provide valuable insights into the stability of hearing gains and potential risks of deterioration.

Success Rates of Congenital Aural Stenosis Surgery

The retrospective cohort study included 77 patients who underwent modified meatoplasty between 2014 and 2025. Initially, these patients presented with a significant mean air-bone gap (ABG) of 52.1 dB. Following the intervention, the average improvement reached 23.8 dB. Most importantly, nearly 67% of patients achieved an ABG of 30 dB or less within the first year. These statistics highlight the immediate functional benefits of congenital aural stenosis surgery. Furthermore, adjusted analysis showed that these improvements remained stable across various follow-up intervals, spanning up to 60 months.

Predicting Long-Term Hearing Stability

While most patients experience lasting benefits, some may face hearing deterioration. Notably, the study found that such changes typically occur within the first postoperative year. After this period, audiological thresholds generally stabilize. Researchers identified the preoperative air-conduction (AC) threshold as a critical predictor for this risk. Patients with an initial AC threshold higher than 61.7 dB HL showed a significantly greater likelihood of hearing loss after surgery. Therefore, clinicians should use these preoperative metrics to identify high-risk individuals. Consequently, personalized follow-up schedules during the first year can help manage these patients more effectively.

Frequently Asked Questions

Is hearing improvement after congenital aural stenosis surgery permanent?

Yes, most patients maintain their hearing gains for five years or more. While minor fluctuations can occur, long-term audiological outcomes remain significantly better than preoperative levels.

When is the risk of hearing loss highest after the procedure?

The risk of hearing deterioration is mostly confined to the first postoperative year. If hearing remains stable during these twelve months, long-term stability is highly likely.

How do doctors predict who might experience hearing decline?

Doctors use preoperative air-conduction (AC) thresholds as a primary indicator. Patients with an initial AC threshold exceeding 61.7 dB HL typically face a higher risk and require closer monitoring.

Disclaimer: This content is for informational and educational purposes only. It does not constitute medical advice or a professional relationship. Refer to the latest local and national guidelines for clinical practice.

References

1. Yeh CC et al. Long-Term Audiological Outcomes After Surgical Repair for Congenital Aural Stenosis. Otolaryngol Head Neck Surg. 2026 Mar 22. doi: 10.1002/ohn.70213. PMID: 41865284.


2. Viccaro M, et al. Congenital aural stenosis: surgical results and audiological follow-up. Eur Arch Otorhinolaryngol. 2010;267(8):1219-1225.


3. Moon IJ, et al. Long-term hearing outcomes of canaloplasty for congenital aural stenosis. Otol Neurotol. 2012;33(8):1354-1359.