Objective To evaluate the effect of hearing rehabilitation after cochlear implantation in aged patients with severe or profound sensorineural hearing loss

and to analyze the influencing factors. Methods The data of 27 deaf patients aged 70 years and above with cochlear implantation were analyzed retrospectively

and the rehabilitation behaviors were evaluated

and auditory perception was assessed using the categories of auditory performance（CAP）. Results 22 patients（70-79 years old）

3 patients（80-89 years old）

and 2 patients（91 years old）

with an average age of 75.4 years

underwent single ear implantation

including 13 left ear and 14 right ear. One patient underwent cochlear implantation 9 months after operation due to recurrent dizziness and anxiety. The remaining 26 patients were followed up for 9-24 months and divided into two groups according to the time of daily use of cochlear implantation. 13 patients（Group 1） wore the CI more than 8 hours/day

the mean of CAP before operation was 1.38 ± 0.87. The mean after operation was 5.23 ± 1.09

the difference was statistically significant（P<0.05）. The other 13 patients（Group 2） wore CI irregularly

the mean of CAP before operation was 1.54 ± 1.33

and the mean after operation was 2.92 ± 1.04. The difference was statistically significant（P<0.05）. There was no significant difference between the two groups in gender

ear side

time of deafness

age and follow-up time（P>0.05）

no significant difference in average CAP before operation（P>0.05）

and no significant difference in average CAP after operation（P<0.05）. Conclusion The deaf patients aged 70 years and above can safely accept the home-made cochlear implantation

according to individual difference

the higher the cognitive level and family support

the longer the wearing time

the more regular

the more satisfied the auditory rehabilitation effect.