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KMID : 0361020000430040430
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Korean Journal of Otolaryngology - Head and Neck Surgery
2000 Volume.43 No. 4 p.430 ~ p.433
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Transtympanic Endoscopic Diagnosis of Perilymph Fistula
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Jang Chul-Ho
Choi Chang-Ik
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Abstract
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Perilymph fistula (PLF) is a disease for which diagnostic criteria have not been established yet. For this
reason, at the present time, the definitive diagnosis of PLF can only be made by direct identification of
perilymphatic leak during exploratory tympanotomy. But it can be difficult to distinguish between serous
transudates from operative incisions and the clear fluid expected with a true fistula. Infiltrated lidocaine
makes the distinction even more difficult as well. Recently, endoscopies have been used in middle ear by
transtympanic or transtubal approach. However, endoscopic diagnosis of PLF in the literature is very rare.
We diagnosed 2 cases of PLF by transtympanic endoscopy. Because transtympanic endoscopy did not
require lidocaine infiltration nor performing a tympanomeatal flap, confirmation of perilymphatic leakage
was easier. This study therefore recommends transtympanic endoscopy as one method of improving
diagnosis of PLF.
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KEYWORD
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Perilymph fistula, Transtympanic endoscopy
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