Table 4.
Cochlear implant type, sound processor model and MAP parameters for all children (n=161 children, 254 ears) at 5 years of age.
| Number of ears (percentage) | |
|---|---|
| Implant type: | |
| CI512/13 | 21 (8.3%) |
| CI24RE | 202 (79.5%) |
| CI24R | 31 (12.2%) |
|
| |
| Electrode array: | |
| Straight: (CI24R(ST), CI24RE(ST), CI512/13) | 113 (55.5%) |
| Perimodiolar: CI24R(CS), CI24RE(CA) | 141 (44.5%) |
|
| |
| Sound Processor: | |
| CP810 | 84 (33.1%) |
| Freedom | 168 (66.1%) |
| ESPrit 3G | 2 (0.8%) |
|
| |
| Sound Coding strategy: | |
| ACE* | 252 (99.2%) |
| SPEAK | 2 (0.8%) |
|
| |
| Input processing: | |
| ADRO and ASC | 69 (27.2%) |
| ADRO | 173 (68.1%) |
| Nil | 12 (4.7%) |
|
| |
| Stimulation mode: | |
| MP1+2* | 246 (96.8%) |
| MP1 | 4 (1.6%) |
| MP2 | 3 (1.2%) |
| CG | 1 (0.4%) |
|
| |
| Pulse width: | |
| 25 μs* | 190 (74.8%) |
| <25 μs | 2 (0.8%) |
| >25 μs | 52 (20.5%) |
| Variable | 10 (3.9%) |
|
| |
| Maxima: | |
| = 8* | 171 (67.3%) |
| < 8 | 9 (3.6%) |
| > 8 | 74 (29.1%) |
|
| |
| Rate: | |
| = 900 pps* | 217 (85.4%) |
| < 900 pps | 20 (7.9%) |
| > 900 pps | 17 (6.7%) |
|
| |
| Number electrodes used: | |
| 22* | 213 (83.86%) |
| 21 | 7 (2.76%) |
| 20 | 20 (7.87%) |
| 19 | 5 (1.97%) |
| 18 | 5 (1.97%) |
| 17 | 2 (0.79%) |
| 15 | 1 (0.39%) |
| 11 | 1 (0.39%) |
Abbreviations: ACE = Advanced Combination Encoder, MP = Monopolar; stimulation mode; μs = microseconds, pps = pulses per second per channel, SPEAK = Spectral Peak
*
indicates the default parameter settings recommended in Cochlear Limited’s clinical programming software for Nucleus® Freedom™ and Nucleus® CP810 sound processors.