Table 1.
Characteristics of patients who underwent simultaneous bilateral cochlear implantation.
| Case | Age | Sex | Electrodes, both sides (company) | Insertion method (side) | Electrode angular insertion depth (side) | Cause of hearing loss |
|---|---|---|---|---|---|---|
| 1 | 70 | F | FLEXSOFT (MED-EL) | RWA (both) | 536° (right), 547° (left) | Cholesteatoma |
| 2 | 38 | M | FLEXSOFT (MED-EL) | RWA (both) | NR | Unknown |
| 3 | 63 | M | FLEXSOFT (MED-EL) | RWA (both) | NR | Unknown |
| 4 | 83 | F | FLEXSOFT (MED-EL) | Cochleostomy (right), eRWA (left) | 522° (right), 559° (left) | Autoimmune sensorineural hearing loss |
| 5 | 75 | M | FLEXSOFT (MED-EL) | RWA (both) | 530° (right), 555° (left) | Unknown |
| 6 | 23 | F | Standard (MED-EL) | eRWA (both) | 579° (right), 536° (left) | Meningitis |
| 7 | 70 | F | Standard (MED-EL) | RWA (right), eRWA (left) | NR | Unknown |
| 8 | 66 | F | FLEX28 (MED-EL) | RWA (both) | 567° (right), 569° (left) | Pendred Syndrome |
| 9 | 39 | F | FLEX24 (MED-EL) | RWA (both) | 519° (right), 506° (left) | KCNQ4 gene mutation |
| 10 | 55 | F | CI632 (Cochlear) | RWA (right), eRWA (left) | 455° (right), 393° (left) | Mitochondrial hearing loss (m.1555A > G) |
M, Male; F, Female; RWA, Round Window Approach; eRWA, extended Round Window Approach; NR, not recorded in the medical record.