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Reda Del Barrio S, García Fernández A, Quesada-Espinosa JF, Sánchez-Calvín MT, Gómez-Manjón I, Sierra-Tomillo O, Juárez-Rufián A, de Vergas Gutiérrez J. Genetic diagnosis of childhood sensorineural hearing loss. Acta Otorrinolaringol Esp (Engl Ed) 2024; 75:83-93. [PMID: 38224868 DOI: 10.1016/j.otoeng.2023.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/03/2023] [Indexed: 01/17/2024]
Abstract
INTRODUCTION Congenital/early-onset sensorineural hearing loss (SNHL) is one of the most common hereditary disorders in our environment. There is increasing awareness of the importance of an etiologic diagnosis, and genetic testing with next-generation sequencing (NGS) has the highest diagnostic yield. Our study shows the genetic results obtained in a cohort of patients with bilateral congenital/early-onset SNHL. MATERIALS AND METHODS We included 105 children with bilateral SNHL that received genetic testing between 2019 and 2022. Genetic tests were performed with whole exome sequencing, analyzing genes related to hearing loss (virtual panel with 244 genes). RESULTS 48% (50/105) of patients were genetically diagnosed. We identified pathogenic and likely pathogenic variants in 26 different genes, and the most frequently mutated genes were GJB2, USH2A and STRC. 52% (26/50) of variants identified produced non-syndromic hearing loss, 40% (20/50) produced syndromic hearing loss, and the resting 8% (4/50) could produce both non-syndromic and syndromic hearing loss. CONCLUSIONS Genetic testing plays a vital role in the etiologic diagnosis of bilateral SNHL. Our cohort shows that genetic testing with NGS has a high diagnostic yield and can provide useful information for the clinical workup of patients.
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Affiliation(s)
- Sara Reda Del Barrio
- Servicio de Otorrinolaringología, Hospital Universitario 12 de Octubre, Madrid, Spain.
| | | | | | | | - Irene Gómez-Manjón
- Servicio de Genética, Hospital Universitario 12 de Octubre, Madrid, Spain
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Reda Del Barrio S, de Vergas Gutiérrez J, Quesada-Espinosa JF, Sánchez-Calvín MT, Gómez-Manjón I, Sierra-Tomillo O, Juárez-Rufián A, Fernández AG. Diagnostic yield of genetic testing in adults with sensorineural hearing loss. Acta Otorrinolaringol Esp (Engl Ed) 2024:S2173-5735(24)00026-7. [PMID: 38346493 DOI: 10.1016/j.otoeng.2023.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 10/06/2023] [Indexed: 02/19/2024]
Abstract
INTRODUCTION The contribution of genetic causes to sensorineural hearing loss (SNHL) in adults is less clear than in children, and genetic diagnosis is still not standardized in adults. In this study we present the genetic results obtained in a cohort of adult patients with SNHL. MATERIALS AND METHODS We included 63 adults with SNHL that received genetic testing between 2019 and 2022. Whole exome sequencing was performed and variants in genes related to hearing loss (virtual panel with 244 genes) were prioritised and analysed. RESULTS 24% (15/63) of patients were genetically diagnosed: 87% (13/15) of patients had non-syndromic hearing loss and 13% (2/15) had syndromic hearing loss. We identified pathogenic and likely pathogenic variants in 11 different genes. CONCLUSIONS Our results show that a significant proportion of adults with SNHL have a genetic origin, and that implementation of genetic testing improves diagnostic accuracy and allows personalized management of these patients.
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Affiliation(s)
- Sara Reda Del Barrio
- Servicio de Otorrinolaringología, Hospital Universitario 12 de Octubre, Madrid, Spain.
| | | | | | | | - Irene Gómez-Manjón
- Servicio de Genética, Hospital Universitario 12 de Octubre, Madrid, Spain
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Carrasco Colom J, Manzanares Á, Álvaro Gómez A, Serrano Escribano I, Esquivel E, Pérez-Rivilla A, Moral-Pumarega MT, Aguirre Pascual E, De Vergas J, Reda Del Barrio S, Moraleda C, Epalza C, Fernández-Cooke E, Prieto L, Villaverde S, Zamora B, Herraiz I, Galindo A, Folgueira MD, Delgado R, Blázquez-Gamero D. Clinical outcomes and antibody transfer in a cohort of infants with in utero or perinatal exposure to SARS-CoV-2 (Coronascope Study). Eur J Pediatr 2023; 182:4647-4654. [PMID: 37561198 DOI: 10.1007/s00431-023-05147-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 08/11/2023]
Abstract
We aimed to describe the outcomes, focusing on the hearing and neurological development, of infants born to mothers with COVID-19 during pregnancy and to evaluate the persistence of maternal antibodies in the first months of life. An observational, prospective study at a tertiary hospital in Madrid (Spain) on infants born to mothers with COVID-19 during pregnancy between March and September 2020 was conducted. A follow-up visit at 1-3 months of age with a physical and neurological examination, cranial ultrasound (cUS), SARS-CoV-2 RT-PCR on nasopharyngeal swab, and SARS-CoV-2 serology were performed. Hearing was evaluated at birth through the automated auditory brainstem response and at six months of age through the auditory steady-state response. A neurodevelopmental examination using the Bayley-III scale was performed at 12 months of age. Of 95 infants studied, neurological examination was normal in all of them at the follow-up visit, as was the cUS in 81/85 (95%) infants, with only mild abnormalities in four of them. Serology was positive in 47/95 (50%) infants, which was not associated with symptoms or severity of maternal infection. No hearing loss was detected, and neurodevelopment was normal in 96% of the infants (median Z score: 0). CONCLUSION In this cohort, the majority of infants born to mothers with COVID-19 during pregnancy were healthy infants with a normal cUS, no hearing loss, and normal neurodevelopment in the first year of life. Only half of the infants had a positive serological result during the follow-up. WHAT IS KNOWN • Hearing loss and neurodevelopmental delay in infants born to mothers with COVID-19 during pregnancy has been suggested, although data is inconsistent. Maternal antibody transfer seems to be high, with a rapid decrease during the first weeks of life. WHAT IS NEW • Most infants born to mothers with COVID-19 during pregnancy had normal hearing screening, cranial ultrasound, and neurodevelopmental status at 12 months of life. Antibodies against SARS-CoV-2 were only detected in 50% of the infants at two months of life.
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Affiliation(s)
- Jaime Carrasco Colom
- Pediatric Infectious Disease Unit, Hospital Universitario 12 de Octubre, Madrid, Spain
- Pediatric Research and Clinical Trials Unit (UPIC), Instituto de Investigación Hospital, RECLIP, 12 de Octubre (imas12), Madrid, Spain
| | - Ángela Manzanares
- Pediatric Infectious Disease Unit, Hospital Universitario 12 de Octubre, Madrid, Spain.
- Pediatric Research and Clinical Trials Unit (UPIC), Instituto de Investigación Hospital, RECLIP, 12 de Octubre (imas12), Madrid, Spain.
| | | | | | - Estrella Esquivel
- Pediatric Research and Clinical Trials Unit (UPIC), Instituto de Investigación Hospital, RECLIP, 12 de Octubre (imas12), Madrid, Spain
| | - Alfredo Pérez-Rivilla
- Microbiology Department, Hospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Maria Teresa Moral-Pumarega
- Neonatology Department, Hospital Universitario 12 de Octubre, RICORS Network, ISCIII, Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
| | | | - Joaquín De Vergas
- Pediatric Otorhinolaryngology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Sara Reda Del Barrio
- Pediatric Otorhinolaryngology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Cinta Moraleda
- Pediatric Infectious Disease Unit, Hospital Universitario 12 de Octubre, Madrid, Spain
- Pediatric Research and Clinical Trials Unit (UPIC), Instituto de Investigación Hospital, RECLIP, 12 de Octubre (imas12), Madrid, Spain
| | - Cristina Epalza
- Pediatric Infectious Disease Unit, Hospital Universitario 12 de Octubre, Madrid, Spain
- Pediatric Research and Clinical Trials Unit (UPIC), Instituto de Investigación Hospital, RECLIP, 12 de Octubre (imas12), Madrid, Spain
| | - Elisa Fernández-Cooke
- Pediatric Infectious Disease Unit, Hospital Universitario 12 de Octubre, Madrid, Spain
- Pediatric Research and Clinical Trials Unit (UPIC), Instituto de Investigación Hospital, RECLIP, 12 de Octubre (imas12), Madrid, Spain
| | - Luis Prieto
- Pediatric Infectious Disease Unit, Hospital Universitario 12 de Octubre, Madrid, Spain
- Pediatric Research and Clinical Trials Unit (UPIC), Instituto de Investigación Hospital, RECLIP, 12 de Octubre (imas12), Madrid, Spain
- Universidad Complutense de Madrid, Madrid, Spain
| | - Serena Villaverde
- Pediatric Infectious Disease Unit, Hospital Universitario 12 de Octubre, Madrid, Spain
- Pediatric Research and Clinical Trials Unit (UPIC), Instituto de Investigación Hospital, RECLIP, 12 de Octubre (imas12), Madrid, Spain
| | - Berta Zamora
- Neuropsychology Unit, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Ignacio Herraiz
- Universidad Complutense de Madrid, Madrid, Spain
- Fetal Medicine Unit, Obstetrics and Gynecology Department, Hospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
- Primary Care Interventions to Prevent Chronic Maternal and Child Diseases of Perinatal and Developmental Origin (RICORS Network), Instituto de Salud Carlos III, RD21/0012/0024, Madrid, Spain
| | - Alberto Galindo
- Universidad Complutense de Madrid, Madrid, Spain
- Fetal Medicine Unit, Obstetrics and Gynecology Department, Hospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
- Primary Care Interventions to Prevent Chronic Maternal and Child Diseases of Perinatal and Developmental Origin (RICORS Network), Instituto de Salud Carlos III, RD21/0012/0024, Madrid, Spain
| | - María Dolores Folgueira
- Microbiology Department, Hospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Rafael Delgado
- Microbiology Department, Hospital Universitario 12 de Octubre, Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Daniel Blázquez-Gamero
- Pediatric Infectious Disease Unit, Hospital Universitario 12 de Octubre, Madrid, Spain
- Pediatric Research and Clinical Trials Unit (UPIC), Instituto de Investigación Hospital, RECLIP, 12 de Octubre (imas12), Madrid, Spain
- Universidad Complutense de Madrid, Madrid, Spain
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