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Proposal for Classification of Isolated Congenital Ossicular anomalies

Other Title
선천성 이소골 기형의 분류법 제안
Authors
박, 기현; 문, 성균; 정, 연훈; 최, 호석
Citation
Taehan Ibi Inhukwa Hakhoe chi, 47(3):212-216, 2004
Journal Title
Taehan Ibi Inhukwa Hakhoe chi; Journal of the Korean Otolaryngological Society; 대한이비인후과학회지
ISSN
1225-035X
Abstract
Background and Objectives: There are many different types of congenital ossicular anomalies, which may be broadly divided into major ear anomalies and minor ear anomalies. Minor congenital anomalies are restricted to the middle ear, while major congenital anomalies are malformations of the middle ear and external meatus and sometimes the auricle. The great diversity of anomalies of the middle ear described in the literature makes it difficult to compare and analyze it. The objective of this study is to review and analyze the isolated congenital ossicular anomalies published in the Korean literatures with special reference to the pattern of anomalies and surgical treatment results, and to propose a new systematic classification of isolated congenital ossicular anomalies.



Subjects and Method: We reviewed retrospectively 10 Korean literatures concerning isolated congenital ossicular anomalies, which included 117 cases. We also reviewed 9 cases of isolated congenital ossicular anomalies from Ajou University Hospital from Jan 2002 to June 2003, which were not reported in the literature. Among the total 126 cases of isolated congenital ossicular anomalies, follow-up on the hearing results was possible in 112 ears.



Results: We proposed a new classification of isolated congenital ossicular anomalies using 5 types based on the stapes status. Twenty-six anomalous patterns were detected out of 126 cases of isolated congenital ossicular anomalies. Using the new classification, the more severe anomaly stapes could be displayed, and the worse postoperative hearing gain could be also predicted.



Conclusion: Ossicular anomalies were detected without a certain rule of pattern, and big variety of those patterns could be detected in the future. Our proposed new classification will be helpful to analyze the pattern and surgical result of congenital ossicular anomalies.
Keywords
Comgenital defectEar ossiclesconductive Hearing loss
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Otolaryngology
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