Study on the Clinical Effect of Creating Upper Tympanic Airway to Prevent Recurrence of Middle Ear Cholestatoma after Operation
Objective To investigate the clinical effect of creating upper tympanic airway to prevent recurrence of middle ear cholesteatoma after operation.Methods A total of 27 patients(27 ears)admitted to our hospital from July 2015 to December 2020 were selected as the study subjects,and divided into three groups according to different treatment methods:① Classic group(5 ears),which underwent complete mastoidectomy,conventional open-face recess,and posterior arch column as far as possible;② The external lateral wall of the upper tympanic cavity was not preserved in 2 cases(2 ears)in the upper tympanic cavity incision group,which was reconstructed with cartilage after resection,and the ossicular chain was intact in all cases.③ 20 cases(20 ears)in the open constriction group were treated with tympanoplasty after radical mastoidectomy.The hearing changes of different groups before and after different surgical methods were compared,and the recurrence of the two groups was analyzed after 6 months of follow-up.Results The mean value of pure tone gas-bone space(ABG)in classic complete group was lower than that in open constriction group(P<0.05).The ABG in the upper tympanotomy group was lower than that in the open constriction group(P<0.05).The 6-month recurrence rate of the open narrowing group was higher than that of the other two groups,but there was no significant difference between the two groups(P>0.05).Conclusion The operation method to ensure the patency of the upper tympanum is beneficial to the gas exchange of the middle ear and the mastoid process,improve the hearing of patients,and reduce the recurrence possibility of cholestatoma.
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