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Study population and eligibility criteria to HPS and hearing outcome according to AAOHNS classification.
| HPS in 322 cases series I, II, III Eligibility criteria |
Hearing outcome AAOHNS ’95, A-B classes |
|---|---|
| I 1976-2000, 207 cases Ø ≤ 30 mm, hearing 50/50 |
27.5% |
| II 2000-2002, 51 cases Ø ≤ 15 mm, hearing 30/70 |
32%* |
| III 2002-2008, 64 cases Ø ≤ 10 mm, hearing 30/70 |
50%* |
Including cases OFF protocol.
