The Analysis Of Protecting The Acoustic Nerve Function In Acoustic Neuroma And Its Influence Factors

Objective:Hearing decline is a common complication after hearing neuroma.Determination of the location relationship between the nerve and the tumor before surgery can help the surgeon formulate surgical solutions and reduce unnecessary nerve damage.This project uses the inner ear water imaging and the temporal bone CT thin scan assessment of the relative relationship between the hearing neuroma and the inner hearing,evaluate the distribution of the inner nerve in the inner tract,compare the functional conditions of the nerve before and after surgery,and analyze the hearing nerve tumor.The dangerous factor of decline aims to provide a basis for better protecting neuroma listening function.Methods:Looking back at 47 cases of images and pathological diagnosis of neurosurgery diagnosis in the neurosurgery diagnosis of neurotherapy in the Shanxi Provincial People’s Hospital from September 2020 to September 2022.According to the HHIA-S classification in June after the operation,the case of the enrollment was divided into two Group,29 people in the hearing reservation group,18 people who did not retain the hearing group.All patients were operated by the same surgeon.After the pillow under the pillow,the subsequent approach was performed for surgery.The clinical data of patients mainly include age,side,clinical symptoms,positive signs,KOOS classification,cyst solid judgment,internal listening width,internal listening length,tumor invasion and inside length,internal listening nerve display conditions,Functional scoring scale and other information,the basic situation of patients after follow-up of the patient and applied the HHIA-S meter to evaluate the long-term hearing level.Learning differences.Use multi-factor logistic regression analysis The effective factors and correlations of postoperative hearing retention.Results:1.The average age of the research object was 52.23 ± 10.91,including 11 men and 36 women;the lesions were 28 cases on the left and 19 cases on the right side.The decline in hearing and the unstable walking is related to the level of the long-term hearing.There is no statistical difference in gender,side,age,and other clinical symptoms.2.The maximum diameter of the tumor is 2.98 ± 1.03cm,17 patients are cystic tumors,and 30 patients are solid tumors.According to the KOOS hierarchical reminder:11 cases of KOOS Ⅱ,13 cases of Ⅲ,and 23 cases of Ⅳ.The maximum diameter of the tumor and KOOS are related to the long-term hearing level,and there is no statistical difference in cystic.3.There is no statistical difference between the internal listening tract width of the affected side,the length of the inner hearing of the affected side according to the inner ear imaging of the inner ear water and the temporal bone CT,and the proportion of invading the inner listening.Period listening level is related.4.Facial nerve anatomical retention rate is 93.9%.Facial nerve and tumor relative position,tumor full cut,PTA,40Hz AERP and other factors are related to long-term hearing reservations.SRS and ABR have no statistical differences.5.Multi-factor analysis shows that the maximum diameter of the tumor and the inner hearing of the inner tract are the independent risk factors retained by hearing(P<0.05).6.There are statistical differences in PTA and SRS in the hearing retention group.There is no statistical difference in the two in the hearing.Conclusion:1.Listening decrease,unstable walking,KOOS grading,facial nerve position,full cut of tumor,PTA,40Hz AERP and other factors are related to long-term hearing retention.Independent risk factors.2.Inner ear water imaging and temporal bone CT can reflect the three-dimensional structure and movement of the inner ear,the invasion range of the inner tract in the tumor,and the inner inner inner nerve distribution,which is conducive to reducing side damage.Auxiliary surgery plans to develop surgical plans to protect nerve function.3.40Hz AERP has correlation with long-term hearing retention.Objective hearing inspections such as 40Hz Aerp and ABR can improve the diagnostic effectiveness of subjective hearing evaluations such as PTA and SRS.