Benefits of Exome Sequencing in Children with Suspected Isolated Hearing Loss
Purpose: Hearing loss is characterized by an extensive genetic heterogeneity and remains a common disorder in children. Molecular diagnosis is of particular benefit in children, and permits the early identification of clinically-unrecognized hearing loss syndromes, which permits effective clinical m...
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doaj-88ac264084d646e1afe2d775b27460c02021-08-26T13:47:11ZengMDPI AGGenes2073-44252021-08-01121277127710.3390/genes12081277Benefits of Exome Sequencing in Children with Suspected Isolated Hearing LossRoxane Van Heurck0Maria Teresa Carminho-Rodrigues1Emmanuelle Ranza2Caterina Stafuzza3Lina Quteineh4Corinne Gehrig5Eva Hammar6Michel Guipponi7Marc Abramowicz8Pascal Senn9Nils Guinand10Helene Cao-Van11Ariane Paoloni-Giacobino12Division of Genetic Medicine, Geneva University Hospitals, 1205 Geneva, SwitzerlandDivision of Genetic Medicine, Geneva University Hospitals, 1205 Geneva, SwitzerlandDivision of Genetic Medicine, Geneva University Hospitals, 1205 Geneva, SwitzerlandEar-Nose-Throat/Head and Neck Surgery Division, Geneva University Hospitals, 1205 Geneva, SwitzerlandDivision of Genetic Medicine, Geneva University Hospitals, 1205 Geneva, SwitzerlandDivision of Genetic Medicine, Geneva University Hospitals, 1205 Geneva, SwitzerlandDivision of Genetic Medicine, Geneva University Hospitals, 1205 Geneva, SwitzerlandDivision of Genetic Medicine, Geneva University Hospitals, 1205 Geneva, SwitzerlandDivision of Genetic Medicine, Geneva University Hospitals, 1205 Geneva, SwitzerlandEar-Nose-Throat/Head and Neck Surgery Division, Geneva University Hospitals, 1205 Geneva, SwitzerlandEar-Nose-Throat/Head and Neck Surgery Division, Geneva University Hospitals, 1205 Geneva, SwitzerlandEar-Nose-Throat/Head and Neck Surgery Division, Geneva University Hospitals, 1205 Geneva, SwitzerlandDivision of Genetic Medicine, Geneva University Hospitals, 1205 Geneva, SwitzerlandPurpose: Hearing loss is characterized by an extensive genetic heterogeneity and remains a common disorder in children. Molecular diagnosis is of particular benefit in children, and permits the early identification of clinically-unrecognized hearing loss syndromes, which permits effective clinical management and follow-up, including genetic counselling. Methods: We performed whole-exome sequencing with the analysis of a panel of 189 genes associated with hearing loss in a prospective cohort of 61 children and 9 adults presenting mainly with isolated hearing loss. Results: The overall diagnostic rate using exome sequencing was 47.2% (52.5% in children; 22% in adults). In children with confirmed molecular results, 17/32 (53.2%) showed autosomal recessive inheritance patterns, 14/32 (43.75%) showed an autosomal dominant condition, and one case had X-linked hearing loss. In adults, the two patients showed an autosomal dominant inheritance pattern. Among the 32 children, 17 (53.1%) had nonsyndromic hearing loss and 15 (46.7%) had syndromic hearing loss. One adult was diagnosed with syndromic hearing loss and one with nonsyndromic hearing loss. The most common causative genes were STRC (5 cases), GJB2 (3 cases), COL11A1 (3 cases), and ACTG1 (3 cases). Conclusions: Exome sequencing has a high diagnostic yield in children with hearing loss and can reveal a syndromic hearing loss form before other organs/systems become involved, allowing the surveillance of unrecognized present and/or future complications associated with these syndromes.https://www.mdpi.com/2073-4425/12/8/1277isolated hearing lossdeafnessgeneticsmolecular diagnosischildrenwhole-exome sequencing |
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DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Roxane Van Heurck Maria Teresa Carminho-Rodrigues Emmanuelle Ranza Caterina Stafuzza Lina Quteineh Corinne Gehrig Eva Hammar Michel Guipponi Marc Abramowicz Pascal Senn Nils Guinand Helene Cao-Van Ariane Paoloni-Giacobino |
spellingShingle |
Roxane Van Heurck Maria Teresa Carminho-Rodrigues Emmanuelle Ranza Caterina Stafuzza Lina Quteineh Corinne Gehrig Eva Hammar Michel Guipponi Marc Abramowicz Pascal Senn Nils Guinand Helene Cao-Van Ariane Paoloni-Giacobino Benefits of Exome Sequencing in Children with Suspected Isolated Hearing Loss Genes isolated hearing loss deafness genetics molecular diagnosis children whole-exome sequencing |
author_facet |
Roxane Van Heurck Maria Teresa Carminho-Rodrigues Emmanuelle Ranza Caterina Stafuzza Lina Quteineh Corinne Gehrig Eva Hammar Michel Guipponi Marc Abramowicz Pascal Senn Nils Guinand Helene Cao-Van Ariane Paoloni-Giacobino |
author_sort |
Roxane Van Heurck |
title |
Benefits of Exome Sequencing in Children with Suspected Isolated Hearing Loss |
title_short |
Benefits of Exome Sequencing in Children with Suspected Isolated Hearing Loss |
title_full |
Benefits of Exome Sequencing in Children with Suspected Isolated Hearing Loss |
title_fullStr |
Benefits of Exome Sequencing in Children with Suspected Isolated Hearing Loss |
title_full_unstemmed |
Benefits of Exome Sequencing in Children with Suspected Isolated Hearing Loss |
title_sort |
benefits of exome sequencing in children with suspected isolated hearing loss |
publisher |
MDPI AG |
series |
Genes |
issn |
2073-4425 |
publishDate |
2021-08-01 |
description |
Purpose: Hearing loss is characterized by an extensive genetic heterogeneity and remains a common disorder in children. Molecular diagnosis is of particular benefit in children, and permits the early identification of clinically-unrecognized hearing loss syndromes, which permits effective clinical management and follow-up, including genetic counselling. Methods: We performed whole-exome sequencing with the analysis of a panel of 189 genes associated with hearing loss in a prospective cohort of 61 children and 9 adults presenting mainly with isolated hearing loss. Results: The overall diagnostic rate using exome sequencing was 47.2% (52.5% in children; 22% in adults). In children with confirmed molecular results, 17/32 (53.2%) showed autosomal recessive inheritance patterns, 14/32 (43.75%) showed an autosomal dominant condition, and one case had X-linked hearing loss. In adults, the two patients showed an autosomal dominant inheritance pattern. Among the 32 children, 17 (53.1%) had nonsyndromic hearing loss and 15 (46.7%) had syndromic hearing loss. One adult was diagnosed with syndromic hearing loss and one with nonsyndromic hearing loss. The most common causative genes were STRC (5 cases), GJB2 (3 cases), COL11A1 (3 cases), and ACTG1 (3 cases). Conclusions: Exome sequencing has a high diagnostic yield in children with hearing loss and can reveal a syndromic hearing loss form before other organs/systems become involved, allowing the surveillance of unrecognized present and/or future complications associated with these syndromes. |
topic |
isolated hearing loss deafness genetics molecular diagnosis children whole-exome sequencing |
url |
https://www.mdpi.com/2073-4425/12/8/1277 |
work_keys_str_mv |
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