Enlarged vestibular aqueduct in pediatric sensorineural hearing loss

Dewan, Karuna; Wippold, Franz J.; Lieu, Judith E. C.

doi:10.1016/j.otohns.2008.12.035

Cited by 46 publications

(40 citation statements)

References 17 publications

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“…In 1978, Valvassori and Clemis (75) were the first to describe an associa tion between sensorineural hearing loss and LVA, diagnosed at polytomography, and coined the term "large vestibular aqueduct syndrome" to describe chil dren with LVA and sensorineural hear ing loss that is frequently progressive. Symptoms of vestibular disturbance may also occur as part of this syndrome (76). Multiple studies since then using CT as the imaging modality have esti mated the prevalence of LVA among pa tients with sensorineural hearing loss to be anywhere from 0.64% to 32% (77).…”

Section: Figure 30mentioning

confidence: 99%

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Imaging Review of the Temporal Bone: Part II. Traumatic, Postoperative, and Noninflammatory Nonneoplastic Conditions

2015

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The first part of this review of the temporal bone discussed anatomy of the temporal bone as well as inflammatory and neoplastic processes in the temporal bone region (1). This second part will first discuss trauma to the temporal bone and posttraumatic complications. The indications for common surgical procedures performed in the temporal bone and their postoperative imaging appearance are then presented. Finally, a few noninflammatory nonneoplastic entities involving the temporal bone are reviewed. They are relatively uncommon diagnoses compared with infectious or inflammatory diseases. However, because patients present with symptoms that are either common (hearing loss) or distinctive (sensorineural hearing loss in a child), they are important for the radiologist to be aware of and recognize.

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Section: Figure 30mentioning

confidence: 99%

“…Highspatialresolution CT is the traditional workhorse, but each modality has relative strengths (76). MR imaging has the advantage of delin eating cranial nerves, including the co chlear nerve, and can offer some infor mation on bony structures such as the otic capsule and vestibular aqueduct based on the contour of the fluid within them.…”

Section: Figure 30mentioning

confidence: 99%

Imaging Review of the Temporal Bone: Part II. Traumatic, Postoperative, and Noninflammatory Nonneoplastic Conditions

2015

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“…28 Regardless of whether the Cincinnati or Valvassori criteria were used for that study in the aggregate analysis, the composite data showed similar results.…”

Section: Resultsmentioning

confidence: 84%

“…In the case where more than 1 system was used to evaluate a single diagnosis in the same subset of patients, the system that the authors espoused in conclusion was used in the analysis. 28 …”

Section: Methodsmentioning

confidence: 99%

Diagnostic Yield of Computed Tomography Scan for Pediatric Hearing Loss: A Systematic Review

Chen

Kachniarz

Shin

2014

Otolaryngol.--head neck surg.

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Background Computed tomography (CT) has been used in the assessment of pediatric hearing loss, but concern regarding radiation risk and increased utilization of magnetic resonance imaging (MRI) have prompted us toward a more quantitative and sophisticated understanding of CT’s potential diagnostic yield. Objective To perform a systematic review to analyze the diagnostic yield of CT for pediatric hearing loss, including subgroup evaluation according to impairment severity and laterality, as well as the specific findings of enlarged vestibular aqueduct and narrow cochlear nerve canal. Data Sources PubMed, EMBASE, and the Cochrane Library were assessed from the date of their inception to December 2013. In addition, manual searches of bibliographies were performed and topic experts were contacted. Review Methods Data from studies describing the use of CT in the diagnostic evaluation of pediatric patients with hearing loss of unknown etiology were evaluated, according to a priori inclusion/exclusion criteria. Two independent evaluators corroborated the extracted data. Heterogeneity was evaluated according to the I2 statistic. Results In 50 criteria-meeting studies, the overall diagnostic yield of CT ranged from 7% to 74%, with the strongest and aggregate data demonstrating a point estimate of 30%. This estimate corresponded to a number needed to image of 4 (range, 2–15). The most commonly identified findings were enlarged vestibular aqueduct and cochlear anomalies. The largest studies showed a 4% to 7% yield for narrow cochlear nerve canal. Conclusion These data, along with similar analyses of radiation risk and risks/benefits of sedated MRI, may be used to help guide the choice of diagnostic imaging.

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“…Enlargement of vestibular aqueduct is defined by criteria established originally by Valvassori and Clemens (2) and further revised in recent years by the Cincinnati group (3). In direct comparison to the Valvassori criterion (midpoint 1.5 mm), Cincinnati criteria (midpoint 0.9 mm or operculum 1.9 mm) identify a larger proportion of pediatric patients with EVA who otherwise have no known etiology of hearing loss (4). EVA can occur as isolated anomaly or can be associated with incomplete partition defects, most commonly IP-II (Classic Mondini deformity).…”

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confidence: 99%

Bilateral Sequential Cochlear Implantation in Patients With Enlarged Vestibular Aqueduct (EVA) Syndrome

Manzoor¹,

Wick²,

Wahba³

et al. 2016

Otology &Amp; Neurotology

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Bilateral sequential cochlear implantation can be performed safely in patients with EVA. Audiometric outcomes are excellent and comparable to pediatric cochlear implant patients with no malformations. CSF gusher rates can be minimized by trans-round window approach. Further long-term studies are needed to identify differences within IP-EVA spectrum deformities, audiometric outcomes, and proportions of EVA patients who will need cochlear implantation for hearing rehabilitation.

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Enlarged vestibular aqueduct in pediatric sensorineural hearing loss

Cited by 46 publications

References 17 publications

Imaging Review of the Temporal Bone: Part II. Traumatic, Postoperative, and Noninflammatory Nonneoplastic Conditions

Imaging Review of the Temporal Bone: Part II. Traumatic, Postoperative, and Noninflammatory Nonneoplastic Conditions

Diagnostic Yield of Computed Tomography Scan for Pediatric Hearing Loss: A Systematic Review

Bilateral Sequential Cochlear Implantation in Patients With Enlarged Vestibular Aqueduct (EVA) Syndrome

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