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Intrathecal Application of a Fluorescent Dye for the Identification of Cerebrospinal Fluid Leaks in Cochlear Malformation
Published on: February 29, 2020
Enlarged vestibular aqueduct in pediatric sensorineural hearing loss
Karuna Dewan1, Franz J Wippold, Judith E C Lieu
1Department of Otolaryngyology, Head and Neck Surgery, Washington University, St Louis, MO 63110, USA.
Objective:
Comparison of the Cincinnati criteria (midpoint >0.9 mm or operculum >1.9 mm) to the Valvassori criterion (midpoint > or =1.5 mm) for enlarged vestibular aqueduct (EVA) in pediatric cochlear implant patients.
Study Design:
Cohort study.
Subjects:
One hundred thirty pediatric cochlear implant recipients.
Methods:
We reviewed temporal bone CT scans to measure the vestibular aqueduct midpoint and opercular width.
Results:
The Cincinnati criteria identified 44 percent of patients with EVA versus 16 percent with the Valvassori criterion (P < 0.01). Of those with EVA, 45 percent were unilateral and 55 percent were bilateral using Cincinnati criteria; 64 percent were unilateral and 36 percent bilateral using Valvassori criterion (P < 0.01). The Cincinnati criteria diagnosed 70 ears with EVA classified as normal using the Valvassori criterion (P < 0.01); 59 lacked another medical explanation for their hearing loss.
Conclusion:
The Cincinnati criteria identified a large percentage of pediatric cochlear implant patients with EVA who might otherwise have no known etiology for their deafness.
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