التغيرات السمعية التالية لجراحة حج النتوء الخشائي

Abstract EN

Background & Objective: The aim of this stay was to evaluate the hearing changes after mastoidectomy surgery, and to compare the hearing outcomes using canal wall down mastoidectomy (CWDM) and canal wall up mastoidectomy (CWUM).

Methods & Materials: 78 patients were involved in this study.

62 patients underwent CWDM surgery, whilst 16 patients underwent CWUM surgery in the ENT department at Damascus University.

The hearing changes were observed and compared before and after the surgery.

A t-student statistical analysis was used to evaluate the significant factors (P=0.05).

Result: The hearing outcome was improved in 26 of 56 patients (46.4%) within the CWDM group and in 6 of 16 patients (37.5%) for the CWUM group.

Hearing ability was reduced within 19 of 56 patients (33.9%) in the CWDM group and 3 of 16 patients (18.8%) in the CWUM group with a statistically significantly difference (p=.002).

The hearing was improved by 9dB in the CWDM group and by 13 dB in the CWUM group (p>0.05).

Conclusion: The hearing outcome after mastoidectomy is affected by different factors.

The surgery technique, in the present study, did not affect significantly the hearing outcome and therefore, CWDM approach is recommended to ensure the complete removal of diseased tissues throughout mastoidectomy surgery