Bilateral superior semicircular canal dehiscence in a child with sensorineural hearing loss and without vestibular symptoms

Kanaan, Alyssa; Raad, Roy A.; Hourani, Roula; Zaytoun, Georges

doi:10.1016/j.ijporl.2011.03.019

Cited by 17 publications

(13 citation statements)

References 10 publications

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“…To address these deficiencies, we provide a quantitative summary of published cases of pediatric SSCD and highlight the divergent features of the clinical presentation and management. A total of 14 articles 4,10,11,14,15,18,20,22,23,29,31,32,[34][35][36] comprising 122 cases were reviewed.…”

Section: Discussionmentioning

confidence: 99%

Pediatric superior semicircular canal dehiscence: illustrative case and systematic review

Lagman¹,

Ong²,

Chung³

et al. 2017

Journal of Neurosurgery: Pediatrics

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OBJECTIVEThe purpose of this study is to present an illustrative case of pediatric superior semicircular canal dehiscence (SSCD) and to systematically review the current published literature in the pediatric population.METHODSAn electronic search of the Scopus, Web of Science, PsycINFO, Cochrane, and Embase databases was performed by 2 independent authors through January 2017. Search term combinations included “pediatrics,” “children,” “canal,” and “dehiscence.” Inclusion criteria were as follows: English, full-text clinical studies, case reports, and case series describing pediatric patient(s) (younger than 18 years) with CT evidence of SSCD. Baseline patient demographic characteristics, clinical presentations, dehiscence characteristics, management strategies, and outcome data were extracted.RESULTSA total of 14 studies involving 122 patients were included in the quantitative synthesis. The patients’ mean age was 7.22 years. Male predominance was observed (approximate male-to-female ratio of 1.65:1). Neurodevelopmental disorders were common (n = 14, 11.5%). Auditory signs and symptoms were more common than vestibular signs and symptoms. Hearing loss (n = 62, 50.8%) was the most common auditory symptom and an indicator for imaging evaluation. Vertigo was the most common vestibular symptom (n = 8, 6.6%). Hearing aids were recommended in 8 cases (6.6%), and surgical repair was performed in 1 case (0.8%). Symptom outcomes and follow-up durations were infrequently reported.CONCLUSIONSThe authors’ data suggest that in pediatric SSCD, males are more commonly affected than females. This is different than the adult population in which females are predominantly affected. A history of otologic and/or neurodevelopmental abnormalities was common. There was a preponderance of auditory symptoms in this age group. Conservative management was favored in the majority.

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Section: Discussionmentioning

confidence: 99%

Pediatric superior semicircular canal dehiscence: illustrative case and systematic review

Lagman¹,

Ong²,

Chung³

et al. 2017

Journal of Neurosurgery: Pediatrics

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“…Kanaan et al describe a case of radiologic findings of SSCD in an 11 year old with bilateral sensorineural hearing loss but no other features consistent with the SSCDS . Lee et al report a case series of symptomatic SSCD in the pediatric population but note that the constellation of symptoms is often inconsistent compared with the manifestation of SSCDS in adults .…”

Section: Discussionmentioning

confidence: 99%

Assessment of superior semicircular canal thickness with advancing age

et al. 2015

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“…Reports of patients with complaints of lifelong symptoms of SCD syndrome and of a child with superior SCD syndrome corrected by superior semicircular canal plugging make these arguments more probable [20, 24, 25]. Recent articles describing children with SCD syndrome presenting with hearing loss without vestibular symptoms also support this hypothesis [21, 22]. Another possibility is that while SCD of the affected semicircular canal is necessary, it is not sufficient for development of SCD syndrome [18].…”

Section: Discussionmentioning

confidence: 99%

Prevalence of radiographic semicircular canal dehiscence in very young children: an evaluation using high-resolution computed tomography of the temporal bones

et al. 2012

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Background Previous studies suggest that semicircular canal dehiscences (SCDs) have a developmental origin. Objective We hypothesized that if SCDs originate during development, incidence of radiographic SCDs in young children will be higher than in adults. Materials and methods Thirty-four temporal bone HRCTs of children younger than 2 years and 40 temporal bone HRCTs of patients older than 18 years were reformatted and re-evaluated for presence of SCD or canal thinning. Results were compared with indications for HRCT and clinical information. Results SCDs were detected in 27.3% of children younger than 2 years of age (superior, 13.8%; posterior, 20%) and in 3% of adults (P≤0.004). Of children with one radiographic dehiscence, 55.6% had multiple and 44% had bilateral SCDs on HRCT. No lateral canal SCDs were present. Thinning of bone overlying the semicircular canals was found in 44% of children younger than 2 years and 2.5% of adults (P<0.0001). Conclusion SCDs are more common on HRCTs of very young children. This supports the hypothesis that SCDs originate from discontinuation of bone deposition/maturation. However, SCDs on imaging do not necessarily correlate with canal dehiscence syndrome and should therefore be interpreted carefully.

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Bilateral superior semicircular canal dehiscence in a child with sensorineural hearing loss and without vestibular symptoms

Cited by 17 publications

References 10 publications

Pediatric superior semicircular canal dehiscence: illustrative case and systematic review

Pediatric superior semicircular canal dehiscence: illustrative case and systematic review

Assessment of superior semicircular canal thickness with advancing age

Prevalence of radiographic semicircular canal dehiscence in very young children: an evaluation using high-resolution computed tomography of the temporal bones

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