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Do Decreased Mastoid Pneumatization, Bilateral Involvement and Eustachian Tube Function Affect the Success of Type 1 Tympanoplasty?
Indian Journal of Otolaryngology and Head and Neck Surgery 2024 Februrary
AIM: The surgical success rate of tympanoplasty appears to be influenced by a number of variables. Eustachian tube dysfunction has been shown as one of the factors causing failure in tympanoplasty. It is known that bilateral disease and decreased in mastoid pneumatization are associated with Eustachian tube (ET) dysfunction. In this study, the relationship between the success of type 1 tympanoplasty and mastoid pneumatization, bilateral disease and ET function was investigated.
MATERIALS AND METHODS: A total of 44 patients who were operated for chronic otitis media in our clinic were included. The information of the patients was obtained retrospectively, the direction of the disease (bilateral/unilateral), the status of the graft (intact/perforated), mastoid pneumatization status, and hearing levels (preoperative/postoperative 6th month) were noted. Automatic Williams test was used to tympanometrically evaluate ET functions (ETF) in postoperative period. The relationship between tympanoplasty success and mastoid pneumatization, bilateral disease and ETF was investigated by statistical analysis.
RESULTS: The disease aspect was found bilateral in 34.1% (n = 15) of the cases, and unilateral in 65.9% (n = 29) of the cases. Mastoid pneumatization was decreased in 52.2% (n = 23) of the cases, and normal in 45.4% (n = 20). The preoperative air-bone mean difference (gap) of the cases with decreased mastoid pneumatization was found to be statistically significantly higher than the cases with normal mastoid pneumatization (p < 0.05). The closure of the postoperative air-bone gap in patients with unilateral disease direction was found to be statistically significantly higher than in patients with bilateral disease direction (p < 0.05). Also we found significantly worse ET functions both in unilateral and bilateral disease.
CONCLUSION: Preoperative air-bone gap average is higher in ears with decreased mastoid pneumatization, and postoperative air-bone gap closure is higher in unilateral patients. Mastoid ventilation does not make a significant difference in the success of type 1 tympanoplasty. On the other hand, our results support that ET dysfunction can be effective in the occurrence of chronic otitis media (COM).
MATERIALS AND METHODS: A total of 44 patients who were operated for chronic otitis media in our clinic were included. The information of the patients was obtained retrospectively, the direction of the disease (bilateral/unilateral), the status of the graft (intact/perforated), mastoid pneumatization status, and hearing levels (preoperative/postoperative 6th month) were noted. Automatic Williams test was used to tympanometrically evaluate ET functions (ETF) in postoperative period. The relationship between tympanoplasty success and mastoid pneumatization, bilateral disease and ETF was investigated by statistical analysis.
RESULTS: The disease aspect was found bilateral in 34.1% (n = 15) of the cases, and unilateral in 65.9% (n = 29) of the cases. Mastoid pneumatization was decreased in 52.2% (n = 23) of the cases, and normal in 45.4% (n = 20). The preoperative air-bone mean difference (gap) of the cases with decreased mastoid pneumatization was found to be statistically significantly higher than the cases with normal mastoid pneumatization (p < 0.05). The closure of the postoperative air-bone gap in patients with unilateral disease direction was found to be statistically significantly higher than in patients with bilateral disease direction (p < 0.05). Also we found significantly worse ET functions both in unilateral and bilateral disease.
CONCLUSION: Preoperative air-bone gap average is higher in ears with decreased mastoid pneumatization, and postoperative air-bone gap closure is higher in unilateral patients. Mastoid ventilation does not make a significant difference in the success of type 1 tympanoplasty. On the other hand, our results support that ET dysfunction can be effective in the occurrence of chronic otitis media (COM).
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