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Year: 2015  Vol. 19   Num. 2  - Apr/Junee
DOI: 10.1055/s-0034-1386505
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Case Report
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Intralabyrinthine Penetrating Ventilation Tube with Preservation of Hearing: An Unusual Clinical Situation
Author(s):
Tantely Razafimahefa Raoelina, Maya Elziere, Justin Michel, Arnaud Devèze
Key words:
labyrinth - trauma - tympanic membrane rupture - perilymph - stapes surgery
Abstract:

Introduction: Traumatic perilymphatic fistula is not a rare event with regards to sport activities or traffic accident. However, iatrogenic damage to the inner ear can occur following the common use of grommets and ventilation tube insertion.

Objectives: To report an unusual case of insertion of aeration tube into the vestibule trough the stapes footplate.

Resumed Report: A 62-year-old woman experienced iatrogenic penetration into the vestibule from a ventilation tube inserted for retraction pocket management. The event was misdiagnosed both by the surgeon and by the emergency room physicians, leading to delay in the management. However, preservation of the hearing function lasted for 2 weeks prior to deafness, thanks to the valve of Bast, which preserved the cochlear fluid.

Conclusion: This case gives us the opportunity to stress the need for systematic clinical examination of traumatic injury to the ear and to recommend performing multiplanar millimetric computed tomography scan with accurate interpretation. Traumatic injuries should be referred to a dedicated traumatic emergency referral center.

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