Table 1 Preoperative and postoperative ABG in 10 dB interval
From: Retrograde mastoidectomy with canal wall reconstruction with bone graft in acquired cholesteatoma
PTA ABG | Interposition technique (32 ears) | TORP (18 ears) | ||
|---|---|---|---|---|
Number (%) | Number (%) | |||
Preoperative | Postoperative | Preoperative | Postoperative | |
0–10 dB | 0 | 1 (03.10) | 0 | 0 |
11–20 dB | 1 (03.10) | 17 (53.12) | 0 | 7 (38.88) |
21–30 dB | 18 (56.25) | 11 (34.37) | 10 (55.55) | 7 (38.88) |
> 30 dB | 13 (40.62) | 3 (9.37) | 8 (44.44) | 4 (22.22) |