The Prevalence of Labyrinthine Fistula in Chronic Otitis Media Surgery in Shiraz, Southern Iran
The Prevalence of Labyrinthine Fistula in Chronic Otitis Media Surgery in Shiraz, Southern Iran
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发表时间：
2011-08
影响因子：
0.4
通讯作者：
A. Faramarzi;S. Heydari;M. Rusta
中科院分区：
文献类型：
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作者：
A. Faramarzi;S. Heydari;M. Rusta
背景胆脂瘤型慢性中耳炎手术中瘘管的发生率在不同地区有广泛的报道。这项研究旨在发现迷路瘘在伊朗南部的流行情况。方法对462例(504耳)787例(504耳)慢性中耳炎患者行鼓室成形术联合乳突根治术和非乳突术式鼓室成形术。分析术前临床、术前、术后听力状况及术中表现。结果462例(504耳)慢性中耳炎患者中，术中发现迷路瘘24耳(4.7%)。瘘口位于外侧半规管23例，后半规管1例，海角1例。术前、术后交流阈值在500~3000赫兹、ABG 500~3000赫兹差异有统计学意义，其余变量差异无统计学意义。结论关于迷路瘘术后听力结果，目前尚无通用的听力报告方法。以往文献中的听力评估方法往往可比性差，基于不同的方法学。
Background The incidence of fistulas found during the surgery for chronic otitis media with cholesteatoma has been reported in a wide range in different geographical areas. This study aims to find the prevalence of labyrinthine fistula in the south of Iran. Methods A prospective cross sectional study of 787 (504 ears belong to 462 patients) consecutive tympanoplasty with or without mastoidectomy for chronic otitis media was performed. Data on preoperative clinical and preoperative and postoperative hearing status and intraoperative findings were analyzed. Results A labyrinthine fistula was found at surgery in 24 (4.7%) ears of the total 504 ears belonging to 462 patients undergoing surgery for chronic otitis media. Location of the fistula was the lateral semicircular canal in 23, posterior semicircular canal in 1 and promontory in 1 subject. There was a statistically significant difference in preoperative and postoperative AC threshold in 500-3000 Hz frequency and ABG 500-3000 Hz, but there was no statistically significant difference in the other variables. Conclusion Regarding postoperative hearing outcome in the labyrinthine fistula surgery, it seems that there is no universal method of reporting of hearing results. Past hearing evaluation methods in the literature have been often poorly comparable, based on different methodology.