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. 2012 Jul-Aug;78(4):115-9.
doi: 10.1590/S1808-86942012000400021.

Long term outcome of otosclerosis surgery

[Article in English, Portuguese]
Maria Teresa Bernardo  1 , Joana Dias, Daniela Ribeiro, Diamantino Helena, Artur Condé
Affiliations

Long term outcome of otosclerosis surgery

[Article in English, Portuguese]
Maria Teresa Bernardo et al. Braz J Otorhinolaryngol. 2012 Jul-Aug.

Abstract

The treatment of otosclerosis is eminently surgical. Good immediate results have been well documented when stapedotomy or stapedectomy are chosen.

Objectives: This study aims to assess long term audiometric performance after otosclerosis surgery.

Materials and methods: this retrospective study enrolled stapedotomy and partial stapedectomy patients seen at our service with proven hearing improvement after surgery. Forty-one patients (47 ears) accepted the invitation to be reassessed. Audiometry results before and immediately after surgery were compared.

Results: the median late follow-up was 11 years. To this date, 49% of the patients had normal hearing or mild dysacusis. Preoperative, postoperative, and late postoperative bone and air pure tone averages were 64.4 and 27.0 dB, 35.6 and 22.3 dB, and 44.1 and 29.5 dB respectively.

Conclusion: Otosclerosis surgery offers good long term results. Despite the worsening of thresholds, the level of hypacusis ten years after surgery is lower than the levels observed before surgery.

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Figures

Figure 1
Figure 1
Mean air thresholds for each frequency and air PTA values.
Figure 2
Figure 2
Mean bone thresholds for each frequency and bone PTA values.
Figure 3
Figure 3
Air-bone gap for each frequency and mean ABG values. AT - air threshold; BT - bone threshold.
Figure 4
Figure 4
Mean annual decrease (MAD) of air and bone thresholds, and air-bone gap (ABG) for each frequency. Mean values correspond to the decrease in air and bone PTA and mean ABG values.
Figure 5
Figure 5
Degree of preoperative, postoperative (1) and late postoperative (2) hypacusis.
Figure 6
Figure 6
Comparison of air and bone PTA values of patients with bilateral otosclerosis and unilateral stapedial surgery.
See this image and copyright information in PMC

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