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Assessment of ABR and tympanogram before and 6 months after surgery
| Variable | Pre-operation Number (%) | Post-operation Number (%) | P. value |
|---|---|---|---|
| Abnormal ABRa | |||
| Right | 40 (95.2) | 11 (25.6) | P < 0.005 |
| Left | 40 (95.2) | 9 (20.9) | |
| Abnormal Tym. b | |||
| Right | 40 (93.0) | 14 (33.3) | P < 0.005 |
| Left | 40 (93.0) | 12 (28.6) | |
aABR Auditory Brainstem Response
bTym Tympanogram
