PMID: 8470538Jan 1, 1993Paper

Delayed endolymphatic hydrops following acoustic tumor removal with intraoperative and postoperative auditory brainstem response improvements

Acta Oto-laryngologica. Supplementum
H KobayashiG D VanderArk

Abstract

A 36-year-old female with delayed endolymphatic hydrops (ELH) after acoustic tumor removal of the same ear is reported. She presented at our clinic with pressure, fullness, and tinnitus involving her right ear. She had an abnormal auditory brainstem response (ABR), and a computed tomography showed a right acoustic tumor. She underwent a complete tumor removal from a suboccipital incision with significant intraoperative and postoperative ABR improvements. Preoperatively, there was no fluctuation in her hearing and her electrocochleography (ECoG) was normal. She did well postoperatively, but 18 months after the tumor surgery she complained of noticeable fluctuating hearing loss with increased tinnitus and aural fullness of her right operated ear and nausea but no vertigo. Neurotological examinations showed a positive right urea dehydration and positive right ECoG for enhanced summating potential to clicks. She was diagnosed as cochlear Meniere's disease with delayed ELH, failed medical management and then underwent a valved shunt surgery for ELH to stabilize her hearing. Eight years after her acoustic tumor surgery and 6 and a half years after her ELH surgery she has stabilized hearing with normal ABR and ECoG. Her clinical cours...Continue Reading

References

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