Table 1.
Preoperative case data of 11 children.
| No. | Age, yr | Location of lesions (side, quadrant) | ABG (dB HL) | Tympanometry | Chief complaint | Potsic stage |
|---|---|---|---|---|---|---|
| 1 | 10 | Left, posterior attic + mesotympanum | 30 | B | Hearing loss | III |
| 2 | 6 | Right, mesotympanum | 32 | AS | Hearing loss | I |
| 3 | 3 | Left, anterior hypotympanum + posterior hypotympanum | 20 | B | Physical examination (–) | II |
| 4 | 8 | Right, posterior attic + posterior hypotympanum | 55 | C | Hearing loss | III |
| 5 | 7 | Left, posterior attic | 40 | B | Hearing loss | I |
| 6 | 14 | Left, epitympanum | 21 | C | Hearing loss | III |
| 7 | 4 | Left, epitympanum | 30 | B | Physical examination (-) | I |
| 8 | 11 | Left, posterior epitympanum | 25 | C | Hearing loss | II |
| 9 | 8 | Right, anterior epitympanum + posterior epitympanum | 35 | B | Hearing loss | II |
| 10 | 9 | Left, posterior attic + posterior epitympanum | 20 | C | Hearing loss | III |
| 11 | 7 | Left, posterior attic + posterior epitympanum | 25 | C | Physical examination (–) | II |
ABG = air–bone gap.