Research Article
Effect of Preoperative Mastoid Ventilation on Tympanoplasty Success
Table 3
Preoperative and postoperative hearing threshold averages and air-bone gaps measured in all the patients and the mastoid ventilation groups.
| | Preoperative | | 1st month | | 3rd month | | 12th month | ac | bc | abg | ac | bc | abg | ac | bc | abg | ac | bc | abg | (dB) | (dB) | (dB) | (db) | (dB) | (dB) | (dB) | (dB) | (dB) | (dB) | (dB) | (dB) |
| Patients | 48 | 22 | 26 | 36.3 | 15.6 | 20.6 | 32.3 | 15.9 | 16.4 | 30.8 | 15.3 | 15.5 | Group I | 39.71 | 16.85 | 22.86 | 34.4 | 13 | 21.4 | 26.1 | 13 | 13.1 | 22.9 | 11.9 | 11 | Group II | 45.14 | 24.35 | 20.79 | 35.3 | 18.3 | 17 | 31.1 | 17.1 | 13.9 | 31.1 | 17.6 | 13.4 | Group III | 46.69 | 21.86 | 24.83 | 37.2 | 17.6 | 19.5 | 34.2 | 18.1 | 16.1 | 32.8 | 17.6 | 17.6 |
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ac: air way conduction; bc: bone conduction; abg: air bone gap.
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