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Decision Analysis in Diagnosis of Small Acoustic Tumors

Other Title
작은 청신경종양의 진단접근과정에 대한 연구
Authors
박, 기현; 전, 영명; 박, 홍준; 이, 동훈
Citation
Taehan Ibi Inhukwa Hakhoe chi, 42(1):22-28, 1999
Journal Title
Taehan Ibi Inhukwa Hakhoe chi; Journal of the Korean Otolaryngological Society; 대한이비인후과학회지
ISSN
1225-035X
Abstract
Background and Objectives: With great development that took place in the last 10 years in the imaging techniques such as MRI with gadolinium, small acoustic tumors can be detected before significant symptoms have developed. However,

suspicion of

acoustic neuroma is not easy at its earlier stage due to the lack of its characteristic symptoms. The detection rate of acoustic neuroma using traditional audiologic methods such as ABR and pure tone audiogram with speech discrimination score is

relatively low contrary to expectation. Therefore, there is a need to develop other methods of diagnosis at an earlier stage. the aim of this study was to review symptomatology, diagnostic approach and the management of acoustic neuroma and to

make

a

decision analysis tree of the diagnostic work-up. Materials and Methods: From June 1994 through May 1998, eight patients with a small acoustic neuroma were treated at Ajou University Hospital. We analysed these 8 patients by age, sex,

chief

complaint, size of tumor, preoperative and postoperative audiologic studies, caloric test, treatment modalities and preoperative and postoperative imaging study. Results: Acoustic neuroma had variable symptoms, with the most common initial

symptom of our cases being sudden hearing loss. The sensitivity of ABR was relatively lower than we thought. Two out of three in the observation group showed an abrupt deterioration of hearing. Conclusion: When acoustic neuroma is

suspected

in

patients with unilateral hearing loss, tinnitus and dizziness are very important symptoms to consider. We developed a decision analysis tree for diagnosis of small acoustic neuroma, which should be treated with earlier intervention of MRI.
Keywords
청신경종양자기공명영상청력보존Acoustic neuromaMRIHearing preservation
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Otolaryngology
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