Objective

2

To compare the changes of hearing ability

speech articulation and rehabilitation effect of children with cochlear implant before and after precise mapping

and to emphasize the importance of precise mapping.

Methods

2

Ten cases of children with cochlear implantation treated at our center from January 2022 to July 2023 were analyzed. We used the categories of auditory performance (CAP) and speech intelligibility of rate (SIR) to compare the changes of the children's hearing ability and speech intelligibility before and after the precise mapping. The current stimulation quantity of 6 electrodes (No. 22

No. 20

No. 15

No. 10

No. 5

No. 1) were analyzed before and after mapping.

Results

2

All the 10 children had the situation of oversetting of current stimulation. Except for electrode No. 5

the C-levels of the other electrodes before and after mapping had significant differences (

P

<

0.05)

the T-levels before and after mapping of the 6 electrodes had significant differences (

P

<

0.05)

and the CAP and SIR Scores had significant differences (

P

<

0.05). The rehabilitation effect has been significantly improved after mapping.

Conclusion

2

The precise mapping after cochlear implantation for hearing-impaired children is very important. we should pay attention to both insufficient current stimulation and excessive stimulation.