title: Cerebrospinal Fluid Leak in Cochlear Implantation: Enlarged Cochlear versus Enlarged Vestibular Aqueduct (Common Cavity Excluded).
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.
authors.affiliation: Otorhinolaryngology and Audiology Department, ASMN-IRCCS Hospital, Reggio Emilia, Italy.
authors.forename: Giovanni
authors.identifier: 0000-0001-9429-4713
authors.initials: G
authors.lastname: Bianchin
authors.affiliation: Otorhinolaryngology and Audiology Department, ASMN-IRCCS Hospital, Reggio Emilia, Italy.
authors.forename: Valeria
authors.initials: V
authors.lastname: Polizzi
authors.affiliation: Otorhinolaryngology and Audiology Department, ASMN-IRCCS Hospital, Reggio Emilia, Italy.
authors.forename: Patrizia
authors.initials: P
authors.lastname: Formigoni
authors.affiliation: Otorhinolaryngology and Audiology Department, ASMN-IRCCS Hospital, Reggio Emilia, Italy.
authors.forename: Carmela
authors.initials: C
authors.lastname: Russo
authors.affiliation: Otorhinolaryngology and Audiology Department, ASMN-IRCCS Hospital, Reggio Emilia, Italy.
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Tribi