Analysis Of The Effect And Related Factors Of Cochlear Implantation In Adult Patients With Postlingual Deafness

Objective: to investigate the effect of auditory and speech rehabilitation and its influencing factors in adult patients with postlingual deafness after cochlear implantation.Methods: 46 adult patients with postlingual deafness who underwent cochlear implantation(cochlear implant,CI)in the first affiliated Hospital of Xinjiang Medical University from January 2011 to January 2022 were collected.Their preoperative implantation age,education level,preoperative residual hearing,hearing loss time and hearing aid use time were collected.The auditory and speech effects of the patients at 1,3,6,9 and 12 months after operation were evaluated by auditory behavior rating(CAP)and speech intelligibility rating(SIR).The auditory speech effects and their changes were observed in male group(n=25),female group(n=21)and general group(n=46).The values of CAP and Sir in 12 months were analyzed by univariate analysis.The results of univariate analysis were analyzed by multiple linear regression analysis.Results: 1.In general,male and female,the scores of CAP and SIR gradually increased with time within12 months after operation.The CAP and Sir values of total,male and female were compared before operation and 1,3,6,9 and 12 months after operation,respectively.There were significant differences in CAP and SIR between the three groups before and after operation.There were significant differences in preoperative cap values between total,male,female and postoperative 1,3,6,9,12 months(P<0.05).There was significant difference between preoperative SIR and postoperative 3,6,9,12 months(P<0.05).There was significant difference between preoperative SIR and postoperative 3,6,9,12 months(P<0.05).There was no significant difference in CAP and Sir between 6 months and 9 and12 months after operation,and between 9 months and 12 months after operation.the auditory and speech function of adult patients with postlingual deafness could be recovered after operation,especially at 6 months after operation.2.Univariate analysis showed that residual hearing and hearing loss time might affect CAP score,while residual hearing,cause of deafness,education level and deafness time might affect SIR score(all P<0.05).3.Multiple linear regression analysis showed that residual hearing(P=0.040)had significant difference in CAP score,while residual hearing(P=0.043),hearing loss time(P=0.010)and education level(P=0.023)had significant difference in SIR score.Conclusion: 1.The hearing and speech function of adult patients with postlingual deafness were significantly improved due to cochlear implant,especially at 6 months after operation.2.The more residual hearing retained before operation,the better the auditory and speech function after operation.3.The shorter the time of preoperative hearing loss and the higher the level of education,the better the recovery of postoperative speech intelligibility.