Boudewyns A, van den Ende J, Peeters N, Van Camp G, Hofkens-Van den Brandt A, Van Schil K, Wouters K, Wuyts W. Targeted Next-Generation Sequencing in Children With Bilateral Sensorineural Hearing Loss: Diagnostic Yield and Predictors of a Genetic Cause.
Otol Neurotol 2023;
44:360-366. [PMID:
36804529 DOI:
10.1097/mao.0000000000003841]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
OBJECTIVE
To investigate the diagnostic yield of targeted next-generation sequencing using hearing loss panels and to identify patient-related factors that are associated with a definite genetic cause.
STUDY DESIGN
Retrospective chart review.
SETTING
Tertiary referral center.
PATIENTS
Children with congenital or late-onset, bilateral sensorineural hearing loss.
INTERVENTIONS
Diagnostic.
MAIN OUTCOME MEASURES
The number of patients with a definite genetic diagnosis.
RESULTS
We report on 238 patients with hearing loss: 130 were male and 108 were female. About 55% had congenital hearing loss. A genetic cause was identified in 94 of the patients (39.5%), with 72.3% of these showing nonsyndromic and 27.6% showing syndromic hearing loss. The diagnostic yield was highest among North African patients (66.7%). A multiple linear regression model shows that profound hearing loss, family history of hearing loss, congenital hearing loss, and North African ethnicity are significantly related to identifying a genetic cause.
CONCLUSIONS
Targeted next-generation sequencing using a panel of hearing loss genes identified a genetic diagnosis in almost 40% of children with bilateral sensorineural hearing loss. We describe the predictors of a genetic diagnosis, and this information may be used during genetic counseling.
Collapse