Table 1.
Subject demographics and performance scores. The speech recognition in quiet scores refer to monosyllables at 65 dB(SPL) using the NVA test material. Scores were based on correct phonemes. Speech in noise scores were based on the LIST sentences (van Weiringen and Wouters, 2008) with a 65 dB (SPL) noise level using a keyword score.
| Subject | Tested Ear | Age at surgery [yrs;mo] |
Duration of CI use at time of testing [mo] |
Implant & Electrode type |
Surgical Approach + Notes |
Clinical Strategy & # of Fine Structure Channels |
Speech recognition in quiet [%] |
Speech recognition in noise [SRT at 65dB noise] |
Clinically Deactiviated Electrodes |
Basal Cochlear Diameter (mm) ("A") |
Etiology | Onset |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UZA-M11 | Left | 43;4 | 61 | SONATA Standard | Cochleostomy, Full Insertion | FS4 ; 4 | 76 | +4 dB | 12 | 9 | CX26 mutation | Congenital (progressive) |
| UZA-M3 | Right | 34;5 | 39 | CONCERTO Standard | Cochleostomy, Full Insertion | FS4 ; 4 | 85 | + 1dB | 11, 12 | 9.4 | Bacterial meningitis | 7/3/1905 |
| UZA-M1 | Left | 55;7 | 178 | COMBI 40+ Standard | Cochleostomy, Full Insertion | FS4 ; 4 | 45 | – | Unknown | Unknown | ||
| UZA-M10 | Right | 44;5 | 98 | PULSAR FLEXSOFT | Cochleostomy, Full Insertion | FS4 ; 4 | 91 | 0 dB | – | 8.1 | Unknown | Congenital (progressive) |
| UZA-M4 | Right | 49;9 | 124 | COMBI 40+ Standard | Cochleostomy, Full Insertion | FS4 ; 4 | 94 | 0 dB | – | Meniere’s disease | 1974 (progressive) | |
| UZA-M12 | Right | 44;11 | 61 | SONATA FLEXSOFT | Cochleostomy, Full Insertion | FSP ; 2 | 85 | +1 dB | – | 9 | Unknown (rhesusincompatibility?) | Congenital |
| UZA-M13L | Left | 27;5 | 41 | CONCERTO FLEXSOFT | Round Window, Full Insertion | FS4 ; 4 | 85 | +3.33 dB | – | 8.8 | Unknown | 1998 (progressive) |
| UZA-M13R | Right | 25;8 | 62 | SONATA FLEXSOFT | Cochleostomy, Full Insertion | FS4 ; 4 | 85 | +3.33 dB | – | 8.9 | Unknown | 1998 (progressive) |
| UZA-M5 | Left | 41;9 | 83 | PULSAR FLEXSOFT | Cochleostomy, Full Insertion | FS4 ; 4 | 73 | +7.67 dB | 12 | Unknown | Unknown | |
| UZA-M14 | Right | 40;8 | 91 | PULSAR FLEXSOFT | Cochleostomy, Full Insertion | FS4 ; 4 | 100 | 0.67 dB | – | 7.8 | Unknown (R) + neurinoma (L) | Congenital (progressive) (R+L) + resection neurinoma (L) |
| UZA-M15 | Left | 50;11 | 87 | PULSAR FLEXSOFT | Cochleostomy, Full Insertion | FS4 ; 4 | 83 | – | Unknown | 1998 (progressive) | ||
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| MEAN | 43;4 | 86.3 | ||||||||||