The large vestibular aqueduct: A new definition based on audiologic and computed tomography correlation

Boston, Mark; Halsted, Mark J.; Meinzen‐Derr, Jareen; Bean, Judy A.; Vijayasekaran, Shyan; Arjmand, Ellis M.; Choo, Daniel I.; Benton, Corning; Greinwald, John H.

doi:10.1016/j.otohns.2006.12.011

Cited by 129 publications

(140 citation statements)

References 17 publications

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“…This study confirms previous findings that the ABG was the largest in patients with LVA at lower frequencies [13,20,21] .…”

Section: Discussionsupporting

confidence: 92%

“…Many studies have analyzed the audiological findings of IEMs [2,10,[12][13][14][15][16][17][18] . This study, however, is the first paper to compare the audiological and radiological findings of patients diagnosed with IP malformations.…”

Section: Discussionmentioning

confidence: 99%

“…An examination of the literature studies revealed that the hearing loss associated with IP-II and LVA malformations is heterogeneous, and the conductive component is not associated with middle ear pathologies [2,12,13,17,18,[20][21][22][23][24][25][26] . Roesch et al [25] found that patients with IP-II and isolated LVA malformations were diagnosed not only with severe to profound hearing loss but also with moderate asymmetrical hearing loss.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Audiological and Radiological Characteristics in Incomplete Partition Malformations

Batuk¹,

Çınar²,

Özgen³

et al. 2017

Int Adv Otol

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OBJECTIVE:To compare the audiological and radiological findings of patients with incomplete partition malformations (IPs) and analyze the relationship between the audiological and radiological findings. MATERIALS and METHODS:The study included 84 patients (168 ears) with IPs as follows: 26 patients with Type I;IP-I (41 ears), 54 patients with Type II;IP-II (108 ears), and 4 patients with Type III;IP-III (8 ears). Remaining 11 ears were diagnosed with other inner ear malformations. Air and bone conduction thresholds were determined with pure tone audiometry, and the air bone gap was recorded in all patients with IPs. Magnetic resonance imaging studies and computerized tomography scans of the temporal bones were analyzed using the PACS system of our university. RESULTS:It was found that all the ears with IP-I were diagnosed with severe to profound hearing loss. The degree of the hearing loss varied from mild to severe/profound in patients with IP-II. Severe to profound mixed hearing loss (MHL) was determined in all ears with IP-III. The air bone gap was larger in the lower frequencies in the IP-II cases diagnosed with MHL. There was not a significant difference between the air bone gap and the size of the vestibular aqueduct in ears with IP-II (p>0.05).CONCLUSION: Each type of IP has different audiological findings. Depending on the type and degree of the hearing loss, it is possible to choose the appropriate audiological intervention. Patients with IP should be evaluated according to the type of malformation.

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“…This study confirms previous findings that the ABG was the largest in patients with LVA at lower frequencies [13,20,21] .…”

Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Audiological and Radiological Characteristics in Incomplete Partition Malformations

Batuk¹,

Çınar²,

Özgen³

et al. 2017

Int Adv Otol

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“…Although the incidence of radiologic abnormalities in children with SNHL has been reported to be as high as 39%, 1 at our institution the incidence is 32%. 2 A large vestibular aqueduct (LVA) is the most commonly identified malformation. 3 There has been no precise definition of normal vestibular aqueduct (VA) size on CT studies.…”

mentioning

confidence: 99%

When Is the Vestibular Aqueduct Enlarged? A Statistical Analysis of the Normative Distribution of Vestibular Aqueduct Size

Vijayasekaran¹,

Halsted²,

Boston³

et al. 2007

American Journal of Neuroradiology

106

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“…Based on a review of 73 CTs from children with known normal hearing, new criteria for the diagnosis of EVA have been proposed. 7 These criteria, which we will refer to as the Cincinnati criteria, were based on a statistical analysis which defined vestibular aqueducts with midpoint width (1.0 mm) or opercular width (2.0 mm) that were greater than the 95 th percentile as enlarged. There is great interest in developing a CT scan evaluation rule to see if the size or shape of the vestibular aqueduct can give some insight into whether the patient is at higher risk of hearing loss.…”

Section: Introductionmentioning

confidence: 99%

Enlarged Vestibular Aqueduct in Pediatric SNHL

Dewan¹,

Lieu²

2008

Otolaryngol.--head neck surg.

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Objective-Comparison of the Cincinnati criteria (midpoint >0.9 mm or operculum >1.9 mm) to the Valvassori criterion (midpoint ≥ 1.5 mm) for enlarged vestibular aqueduct (EVA) in pediatric cochlear implant patients. Study Design-Cohort study Subjects-130 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% of patients with EVA versus 16% with the Valvassori criterion (P<0.01). Of those with EVA, 45% were unilateral and 55% were bilateral using Cincinnati criteria; 64% were unilateral and 36% 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-TheCincinnati 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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The large vestibular aqueduct: A new definition based on audiologic and computed tomography correlation

Abstract: The finding of an LVA in children with SNHL provides diagnostic as well as prognostic information.

Cited by 129 publications

References 17 publications

Audiological and Radiological Characteristics in Incomplete Partition Malformations

Audiological and Radiological Characteristics in Incomplete Partition Malformations

When Is the Vestibular Aqueduct Enlarged? A Statistical Analysis of the Normative Distribution of Vestibular Aqueduct Size

Enlarged Vestibular Aqueduct in Pediatric SNHL

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