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Case report: Two cases of hearing impairment due to intracranial hypotension

2008; Elsevier BV; Volume: 36; Issue: 3 Linguagem: Inglês

10.1016/j.anl.2008.05.016

1879-1476

Masakatsu Taki, Fumiaki Nin, Tatsuhisa Hasegawa, Hirofumi Sakaguchi, Satoshi Yamamoto, Toshihiro Suzuki, Yasuo Hisa,

Intracerebral and Subarachnoid Hemorrhage Research

We report two cases of spontaneous intracranial hypotension (SIH) that presented with orthostatic hearing impairment. Pure tone audiometry in case 1 and distortion-produced otoacoustic emissions (DPOAEs) in case 2 clearly revealed orthostatic low-frequency hearing impairment. The symptoms resolved with conservative therapy in case 1, but they did not resolve completely after three treatments with epidural blood patch in case 2. The orthostatic changes at low-frequency that were present in both examinations indicated a relative endolymphatic hydrops due to SIH. Both otological examinations were useful to infer the pathophysiology of hearing impairment associated with SIH.