慢性中耳炎手術(shù)中多種技術(shù)綜合運(yùn)用的臨床研究
[Abstract]:Objective to study the effects of various techniques in the treatment of chronic otitis media, to reconstruct the structure of middle ear sound transmission, to improve hearing and to prevent recurrence of chronic otitis media. Methods from January 2009 to June 2010, 50 patients (50 ears) with chronic otitis media were enrolled in the department of otorhinolaryngology, first people's hospital of Hefei. All patients were treated with Y-shaped incision, air drill, milling drill, swing saw and ear microsurgical instruments, etc. On the basis of removing the lesions of the patients, the lateral wall of the upper tympanic chamber was reconstructed with the autogenous auditory meatus-mastoid cortex according to the pathological changes of the patients. The wall of external auditory meatus and ossicular chain were fixed by the technique of elastic compression of tympanic cord nerve, and the tympanic membrane was repaired by mezzanine technique of external auditory meatus-mastoid periosteum. The patients were followed up regularly after operation, and the pure tone hearing test was reexamined, and the method of self-control was used. The differences of air-bone conduction before and after operation were compared. Results among 50 ears, 44 ears with 10~30db improved by pure tone audiometry before and after operation, and the successful rate of operation was 88%. The mean air-bone conduction difference was 17.67 鹵14.63 dBHLL before and after operation in the speech band of 50 ears, and the difference of air-bone conduction between pre-operation and post-operation was 17.67 鹵14.63 dBHL in 50 ears. After paired t-test, p0.01 had statistical significance, suggesting that the patients' hearing was improved obviously after operation. During the long-term follow-up observation, 45 ears (90%) had normal external auditory meatus, air-bearing middle ear cavity and normal tympanic membrane. Of the 45 ears, 18 ears (40%) had postoperative air-bone conduction difference of 10 dB, 22 ears (49%) 20 dB, 5 ears (11%) 20 dB. Conclusion in the operation of chronic otitis media, the hearing structure, the wall of the external auditory canal and the lateral wall of the upper tympanic chamber can be reconstructed on the basis of the thorough removal of the lesion, and the normal shape of the middle ear can be maintained to the maximum extent, and the hearing can be improved through the comprehensive application of various techniques in the operation of chronic otitis media. Prevent recurrence.
【學(xué)位授予單位】:安徽醫(yī)科大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2011
【分類號】:R764
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