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          VOLUME 35 / ISSUE 1


The Journal is Indexed in


8 - Early Term Sensorineural Hearing Loss Following in Drill Used Otologic Surgery

Seyhan Alkan,İbrahim Ercan,Sinan Tilki,Tuncal Özdemir,Burhan Dadaş

INTRODUCTION: To investigate early term sensorineural hearing loss (acustic trauma) due to drill used otologic surgeiy.

MATERIAL METHOD: This prospective study is carried out in 40 patients who were underwent drilled otological surgeiy in §ifi Etfal Research and Education Hospital between September 1997 and September 1998. Acustic trauma caused by drill was investigated. Odiometric study were done preoperative and postoperative 24tli and 48th hours.

RESULTS: In 3 cases (%75), statistically significant gap between preoperative bone conduction and postoperative were found in 2000 and 4000 Hz. We found that there was no statistically significant decrease in bone conduction in patients at 24th hour after surgery (p<0.05). CONCLUSION: Sever noise conducted to coclea by bone in drill used otologic surgeiy may cause sensorineural type hearing loss.

Keywords: Otologic surgery, sensorineural hearing loss, drill.

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