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Am J Otolaryngol. 2009 May-Jun;30(3):193-202. doi: 10.1016/j.amjoto.2008.04.005. Epub 2008 Oct 1.

Communication routes between intracranial spaces and inner ear: function, pathophysiologic importance and relations with inner ear diseases.

Author information

1
Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital of Tübingen, Germany. ciuman.raphael@cityweb.de

Abstract

OBJECTIVE:

There exist 3 communication routes between the intracranial space and the inner ear, the vestibular aqueduct, the cochlear aqueduct, and the internal auditory canal. They possess a key role in inner ear pressure regulation and fluid homeostasis and are related to inner ear diseases.

REVIEW METHODS:

Relevant literature was reviewed, and the current knowledge of the anatomy, physiologic importance, and relations to inner ear diseases were described. Pathologic communication routes such as semicircular canal dehiscence syndrome were highlighted as well.

CONCLUSION:

Abnormalities in all 3 communication routes may predispose or be the cause of distinct inner ear pathologic condition and involved in other cochlear and vestibular syndromes, in which their role is not completely clear. The increasing knowledge of the underlying mechanisms encourages promising approaches for possible intervention in the future.

PMID:
19410125
DOI:
10.1016/j.amjoto.2008.04.005
[Indexed for MEDLINE]

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