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. 2016:2016:6591684.
doi: 10.1155/2016/6591684. Epub 2016 Oct 26.

Cerebrospinal Fluid Leak in Cochlear Implantation: Enlarged Cochlear versus Enlarged Vestibular Aqueduct (Common Cavity Excluded)

Giovanni Bianchin  1 , Valeria Polizzi  1 , Patrizia Formigoni  1 , Carmela Russo  1 , Lorenzo Tribi  1
Affiliations

Cerebrospinal Fluid Leak in Cochlear Implantation: Enlarged Cochlear versus Enlarged Vestibular Aqueduct (Common Cavity Excluded)

Giovanni Bianchin et al. Int J Otolaryngol. 2016.

Abstract

Objective. To share our experience of cerebrospinal fluid gusher in cochlear implantation in patients with enlarged cochlear or vestibular aqueduct. Study Design. Case series with comparison and a review of the literature. Methods. A retrospective study was performed. Demographic and radiological results of patients with enlarged cochlear aqueduct or enlarged vestibular aqueduct in 278 consecutive cochlear implant recipients, including children and adults, were evaluated between January 2000 and December 2015. Results. Six patients with enlarged cochlear aqueduct and eight patients with enlarged vestibular aqueduct were identified. Cerebrospinal fluid gusher occurs in five subjects with enlarged cochlear aqueduct and in only one case of enlarged vestibular aqueduct. Conclusion. Based on these findings, enlarged cochlear aqueduct may be the best risk predictor of cerebrospinal fluid gusher at cochleostomy during cochlear implant surgery despite enlarged vestibular aqueduct.

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Figures

Figure 1
Figure 1
Enlarged cochlear aqueduct (ECA) and vestibular aqueduct (VA).
Figure 2
Figure 2
Enlarged cochlear aqueduct.
Figure 3
Figure 3
Enlarged vestibular aqueduct.
See this image and copyright information in PMC

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