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Xiao-Tian Zhao

Publications and source records attributed to Xiao-Tian Zhao.

2 recordsLinked to original sources

[Analysis of factors effecting satisfaction of cochlear implants in prelingually deafened adolescents].

OBJECTIVE: By means of investigating how the benefit and the influence factors are for the pre-lingual deaf adolescents who received cochlear implantation (CI) METHODS: A questionnaire survey was conducted among 30 prelingually deaf adolescents-cochlear implant recipients, aged 9 approximately 20, 15 of which began to use hearing aid before the age of 6, and 19 of which had received speech testing after the CI, and their families to understand the degree of satisfaction, anticipation of the outcome. Nine of the 15 patients who began to use hearing aid before the age of 6 communicated by the oral communication/labial reading model (oral group), and 10 of the other 15 patients who had not used hearing aid after the age of 6 mainly communicated by sign language (sign group). RESULTS: The satisfaction score of the group with a hearing aid fitting history was 3.93 +/- 0.88, significantly higher than that of the group without a hearing aid fitting history (3.00 +/- 1.13, P < 0.05). The scores of speech production ability in vowel, consonant, single syllable, disyllable, trisyllable, and short sentence in the groups with and without a hearing aid fitting history were 76%/52%, 64%/45%, 71%/26%, 82%/96%, 68%/12%, and 49%/13% respectively (all P < 0.05), and there was no significant difference in the speech production ability in tone (P > 0.05) between these 2 groups. There were no significant differences in the total satisfaction degree, satisfaction degree in speech sound, and satisfaction degree in environmental sound between the oral group and sign group (all P > 0.05). The scores in vowel, consonant, single syllable, disyllable, trisyllable, short sentence, and tone of the oral and sign group were 74%, 60%, 64%, 61%, 57%, 43%, 27% and 43%, 39%, 26%, 26%, 20%, 6%, 5% respectively (all P > 0.01). The anticipation of the patient and the parents about outcome before implantation was negatively correlated with the satisfaction degree after implantation, (gamma = -0.479, P < 0.05). CONCLUSION: Cochlear implantation benefits greatly the deaf adolescent; however, it is necessary to establish a specific evaluation system according to recipients' needs.

Adolescent↗

Comparisons between neural response imaging thresholds, electrically evoked auditory reflex thresholds and most comfortable loudness levels in CII bionic ear users with HiResolution sound processing strategies.

CONCLUSIONS: The data collected in this study indicated that first Neural Response Imaging (NRI) thresholds had a better correlation with HiResolution most comfortable loudness (M) levels than tNRI thresholds. Electrically evoked auditory reflex thresholds (EARTs) had a higher correlation with HiResolution M levels than tNRI thresholds and a lower correlation than first NRI thresholds. NRI is a very useful method for programming the cochlear implants of young children who cannot demonstrate a reliable judgment of loudness. OBJECTIVE: To investigate how HiResolution sound processing, designed to deliver high-rate stimuli, relates to EARTs and electrically evoked compound action potential measurements produced by low-rate stimuli. MATERIAL AND METHODS: Nine profoundly hearing-impaired children and adults aged 6-29 years participated in the study. NRI responses were elicited using pulse trains consisting of biphasic pulses at a pulse width per phase of 32 micros delivered at a frequency of 30 Hz using SoundWave programming software. Stimuli were delivered to the odd electrodes (1, 3, 5, 7, 9, 11, 13 and 15) along the array. tNRI (NRI threshold) and first NRI thresholds were recorded for each stimulating electrode. "Speech bursts" stimuli used in EARTs recording were delivered to four electrodes at a time and stapedial reflexes were recorded from the impedance bridge. The M levels used were those used by each patient in their everyday HiResolution programs. RESULTS: For 8 patients (53 stimulating electrodes) the correlation between tNRI threshold and M level was r=0.675 (p=0.000) and that between first NRI thresholds and M level was r=0.741 (p=0.000). On average the M-level value was 20 CU (Current Unit) lower than the first NRI threshold value and 12 CU higher than the tNRI threshold value. The M-level patterns across the electrode array overall were similar to the tNRI or first NRI threshold patterns. For 7 patients (112 stimulating electrodes) the correlation between EART and M levels was r=0.710 (p=0.000). On average the EART value was 14 CU higher than the M-level value.

Adolescent↗