Analysis The Clinical Feature Of External Auditory Canal Cholesteatoma

Objective:Analysis the external auditory canal cholesteatoma cases data by collecting the cases data,analysis the prone people of EACC,the range of lesions damage,clinical symptoms,the degree of hearing loss and etiology classification of clinical features.Provide the basis for clinical early recognition and tratement of EACC.Methods:Collect clinical data of 237 EACC patients admitted to Chinese PLA General Hospital first medical center from 2015.06.01 to 2020.06.30.Including gender,age,pure tone audiometry data,intraoperative,imaging data,etc,classification the cases according to range of lesions damage,by comparing different type patients in the external auditory canal bone wall damage position and degree of hearing loss,etiological composition,clinical symptoms such as analysis of different damage range of the EACC clinical features.At the same time explore the EACC patients with granulation formation reasons by analysis of statistical data.Results:EACC patients mostly are middle-aged and young(16 to 45 years old),gender,side has no obvious statistical difference(P>0.05),cause hearing damage is more conductive hearing loss,common symptoms of the first five from high to low in turn is:otorrhea,hearing loss,otalgia,ear fullness,tinnitus.Otalgia develops in lesions involving the external auditory canal bone wall only stage,in involving the middle ear and mastoid(or)and(or)outside of the temporal bone cases,degree of hearing loss,on the external auditory canal wall involvement rate,the incidence of otorrhea,tympanic membrane perforation rate is significantly higher than confined to cases of external auditory canal(P<0.05),disease confined to the plane and no obvious bone destruction of the EACC patients with secondary EACC constitute a comparison involving the middle ear,temporal bone bone cases(P<0.05).Granulation may be associated with bone destruction scope and has nothing to do with otorrhea(P<0.05).Involving the middle ear and mastoid(or)and(or)outside the temporal bone of the EACC tympanic membrane perforation more in relaxation,damage confined to the plane of the EACC caused by perforation in tension.Conclusion:Different damage range of the EACC,clinical symptoms,bone wall damage location,degree of hearing loss,and other clinical features have differences,early recognition of these differences in clinical features and improve the EACC prognosis has obvious significance.