Journals / The Turkish Journal of Ear Nose and Throat / 2007 / Cilt: 17 - Sayı: 2

Sudden hearing loss in a patient with a 3-mm acoustic tumor

Uç milimetrelik akustik tümörü olan bir hastada ani işitme kaybı

Pages
120–125
Publication Date
2007-03-18
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

He was included in a follow-up with MRI at six-month intervals.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Sudden sensorineural hearing loss SNHL accounts for 1% of ali SNHL cases.
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Key Findings & Data:İt has been reported that acoustic neuroma may be present up to 47.5% of patients with sudden SNHL.
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Conclusion & Impact:He was included in a follow-up with MRI at six-month intervals.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:İşitme kaybı · sensörinöral/etyoloji · akustik nöroma/komplikasyon

Abstract

Sudden sensorineural hearing loss SNHL accounts for 1% of ali SNHL cases. İt has been reported that acoustic neuroma may be present up to 47.5% of patients with sudden SNHL. A 55-year-old man pre- sented with sudden hearing loss in his left ear of 45-day history. Audiologic and transient evoked otoacoustic emission tests showed near-total hearing loss and absence of emissions in the left ear, respectively.Electronystagmography showed left canal paralysis and lack of response to the Kobrak test. The interpeak interval l-V latency and interaural amplitude differences in wave V latency were prolonged in auditory brainstem response. Computed tomography showed an increase in the diameter of the left internal acoustic canal, and magnetic resonance imaging MRI revealed an intra- canalicular mass, 3 mm in size, originating from the left cochlear nerve. Another mass 18x17 mm was detect- ed that filled the right pontocerebellar cistern, suggest- ing a meningioma, but this was not thought to exert an obvious shift effect contributing to the development of left-sided hearing loss. Despite treatment with a tapered course of fluocortolone for 18 days the patient’s hearing level did not change. He was included in a follow-up with MRI at six-month intervals.

Özet

Ani sensörinöral işitme kaybı SNİK tüm SNİK’li olgu- ların yaklaşık %1’ini oluşturur. Ani SNİK’li hastalarda akustik nörinom görülme oranı %47.5’e kadar bildiril- miştir. Sol kulağında 45 gün önce aniden başlayan işit- me kaybı nedeniyle başvuran 55 yaşında erkek hasta- nın odyolojik inceleme ve geçici uyarılmış otoakustik emisyonunda solda tamama yakın SNİK ve emisyon yokluğu görüldü. Elektronistagmografide solda kanal paralizisi ve Kobrak testine yanıtsızlık; işitsel beyin sa- pı odyometrisinde sol I-V interpik latansında ve V. dal- ga latans süresinin kulaklar arası farkında uzama; iç kulak bilgisayarlı tomografisinde sol internal akustik kanal İAK çapında genişleme görüldü ve İAK manye- tik rezonans görüntülemede MRG solda intrakanali- küler 3 mm çaplı koklear sinir kökenli kitleye rastlandı. Hastada aynı zamanda saptanan, sağ pontoserebellar sisterni dolduran, 18x17 mm boyutlarında menenjiyom ile uyumlu ikinci bir kitlenin belirgin kayma etkisi yarat- madığı, dolayısıyla soldaki işitme kaybının gelişmesi- ne katkısının olmadığı düşünüldü. Ani işitme kaybın- dan sonra geç başvuran hastaya, 18 günlük azalan dozda fluokortolon verilmesine rağmen işitme eşikle- rinde değişiklik olmadı ve hasta altı ay aralarla çekile- cek MRG incelemeleriyle izleme alındı

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Cite This Article

YILMAZ, İ., ERBEK, H. S., ERBEK, S., ULUSOY, Ö., ÇALIŞANELLER, T. (2007). Sudden hearing loss in a patient with a 3-mm acoustic tumor. The Turkish Journal of Ear Nose and Throat, Cilt: 17 - Sayı: 2, 120–125. https://ajindex.com/articles/727168

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