Intralabyrinthine neurinoma: Management, exeresis and auditory restoration with cochlear implant.

BACKGROUND AND OBJECTIVE: Vestibular schwannoma is a benign tumour that originates in the eighth cranial nerve. It is termed intralabyrinthine schwannoma (ILS) when it develops in the inner ear, this being a rare origin. We present our experience in the management of three patients with ILS. MATERIALS AND METHODS: The results of tumour excision and cochlear implantation were evaluated in three patients with ILS: two intracochlear schwannomas (ICS) and one intravestibular schwannoma (IVS). RESULTS: Prior to surgery, all patients presented progressive sensorineural hearing loss and tinnitus. Complete tumour resection and cochlear implantation was possible in all patients, with favourable hearing rehabilitation. CONCLUSIONS: The therapeutic approach will depend on tumour size, growth rate, degree of hearing loss and presence of vestibular symptoms. Cochlear implantation (CI) in patients with ILS is possible when the cochlear nerve is present and functional. CI in patients, whether or not preceded by tumour excision, is an option with good hearing results in selected patients.

Neurinoma intralaberíntico: manejo, exéresis y restauración auditiva con implante coclear / Intralabyrinthine neurinoma: Management, exeresis and auditory restoration with cochlear implant

Introducción y objetivo: El schwannoma vestibular es un tumor benigno que se origina en el octavo par craneal. Se denomina schwannoma intralaberíntico (SIL) cuando se origina en el oído interno, siendo este origen poco frecuente. Presentamos nuestra experiencia en el manejo de 3 pacientes con SIL.Material y métodosLos resultados de la exéresis tumoral e implantación coclear fueron evaluados en 3 pacientes con SIL: 2 casos de schwannoma intracoclear y un caso de schwannoma intravestibular.ResultadosPrevio a la cirugía, todos los pacientes presentaban hipoacusia neurosensorial progresiva y acúfeno ipsilateral. La resección tumoral completa y la colocación de un implante coclear fue posible en todos los casos, con una rehabilitación auditiva favorable.ConclusionesLa actitud terapéutica dependerá del tamaño del tumor, el crecimiento, el grado de pérdida auditiva y los síntomas vestibulares. La implantación coclear en pacientes con SIL es posible cuando el nervio coclear está presente y es funcionante. El IC en el SIL, ya sea con exéresis previa o no del tumor, es una opción con buenos resultados auditivos en pacientes seleccionados. (AU)

Introduction and objective: Vestibular schwannoma is a benign tumour that originates in the eighth cranial nerve. It is termed intralabyrinthine schwannoma (ILS) when it develops in the inner ear, this being a rare origin. We present our experience in the management of three patients with ILS.Material and methodsThe results of tumour excision and cochlear implantation were evaluated in three patients with ILS: two intracochlear schwannomas (ICS) and one intravestibular schwannoma (IVS).ResultsPrior to surgery, all patients presented progressive sensorineural hearing loss and tinnitus. Complete tumour resection and cochlear implantation was possible in all patients, with favourable hearing rehabilitation.ConclusionsThe therapeutic approach will depend on tumour size, growth rate, degree of hearing loss and presence of vestibular symptoms. Cochlear implantation (CI) in patients with ILS is possible when the cochlear nerve is present and functional. CI in patients, whether or not preceded by tumour excision, is an option with good hearing results in selected patients. (AU)

Improving the Management of Patients with Hearing Loss by the Implementation of an NGS Panel in Clinical Practice.

A cohort of 128 patients from 118 families diagnosed with non-syndromic or syndromic hearing loss (HL) underwent an exhaustive clinical evaluation. Molecular analysis was performed using targeted next-generation sequencing (NGS) with a custom panel that included 59 genes associated with non-syndromic HL or syndromic HL. Variants were prioritized according to the minimum allele frequency and classified according to the American College of Medical Genetics and Genomics guidelines. Variant(s) responsible for the disease were detected in a 40% of families including autosomal recessive (AR), autosomal dominant (AD) and X-linked patterns of inheritance. We identified pathogenic or likely pathogenic variants in 26 different genes, 15 with AR inheritance pattern, 9 with AD and 2 that are X-linked. Fourteen of the found variants are novel. This study highlights the clinical utility of targeted NGS for sensorineural hearing loss. The optimal panel for HL must be designed according to the spectrum of the most represented genes in a given population and the laboratory capabilities considering the pressure on healthcare.

Guía clínica sobre implantes de conducción de vía ósea / Clinical guideline on bone conduction implants

Introducción y objetivos: En la última década se han producido numerosos y relevantes avances en el tratamiento de la hipoacusia transmisiva y mixta que han desembocado en una ampliación de las indicaciones de los implantes de conducción de vía ósea y la aparición de nuevos dispositivos. La Comisión Científica de Audiología de la Sociedad Española de Otorrinolaringología y Cirugía de Cabeza y Cuello (SEORL-CCC), junto con las comisiones de Otología y Otoneurología, ha llevado a cabo una revisión del estado actual de los implantes de vía ósea con la finalidad de ofrecer a los especialistas de Otorrinolaringología, a los profesionales de la sanidad, a las autoridades sanitarias y a la sociedad en general una guía clínica sobre implantes de conducción de vía ósea. Métodos: Esta guía clínica sobre implantes de conducción ósea contiene información sobre los siguientes temas: 1) definición y descripción de los implantes auditivos de vía ósea; 2) indicaciones actuales y emergentes de los implantes de vía ósea; compatibilidad y resonancia magnética, y 3) requisitos organizativos para un programa de implantes de vía ósea. Resultado y conclusiones: La finalidad de esta guía es describir los diferentes sistemas de conducción ósea, sus particularidades e indicaciones, con el objeto de aportar unas coordenadas que ayuden a todos estos agentes en las tomas de decisiones que deban asumir en los diferentes ámbitos de responsabilidad en los que están enmarcados en sus áreas de trabajo

Introduction and goals: During the last decade there have been multiple and relevant advances in conduction and mixed hearing loss treatment. These advances and the appearance of new devices have extended the indications for bone-conduction implants. The Scientific Committee of Audiology of the Sociedad Española de Otorrinolaringología y Cirugía de Cabeza y Cuello SEORL-CCC (Spanish Society of Otolaryngology and Head and Neck Surgery), together with the Otology and Otoneurology Committees, have undertaken a review of the current state of bone-conduction devices with updated information, to provide a clinical guideline on bone-conduction implants for otorhinolaryngology specialists, health professionals, health authorities and society in general. Methods: This clinical guideline on bone-conduction implants contains information on the following: 1) Definition and description of bone-conduction devices; 2) Current and upcoming indications for bone conduction devices: Magnetic resonance compatibility; 3) Organization requirements for a bone-conduction implant programme. Results and conclusions: The purpose of this guideline is to describe the different bone-conduction implants, their characteristics and their indications, and to provide coordinated instructions for all the above-mentioned agents for decision making within their specific work areas

Clinical guideline on bone conduction implants. / Guía clínica sobre implantes de conducción de vía ósea.

INTRODUCTION AND GOALS: During the last decade there have been multiple and relevant advances in conduction and mixed hearing loss treatment. These advances and the appearance of new devices have extended the indications for bone-conduction implants. The Scientific Committee of Audiology of the Sociedad Española de Otorrinolaringología y Cirugía de Cabeza y Cuello SEORL-CCC (Spanish Society of Otolaryngology and Head and Neck Surgery), together with the Otology and Otoneurology Committees, have undertaken a review of the current state of bone-conduction devices with updated information, to provide a clinical guideline on bone-conduction implants for otorhinolaryngology specialists, health professionals, health authorities and society in general. METHODS: This clinical guideline on bone-conduction implants contains information on the following: 1) Definition and description of bone-conduction devices; 2) Current and upcoming indications for bone conduction devices: Magnetic resonance compatibility; 3) Organization requirements for a bone-conduction implant programme. RESULTS AND CONCLUSIONS: The purpose of this guideline is to describe the different bone-conduction implants, their characteristics and their indications, and to provide coordinated instructions for all the above-mentioned agents for decision making within their specific work areas.

Hallazgos audiológicos en niños con mucopolisacaridosis tipos i-iv / Audiological findings in children with mucopolysaccharidoses type i-iv

Objetivo: Revisión y descripción de la afectación otoaudiológica en el seguimiento de 23 niños con diagnóstico de mucopolisacaridosis (MPS) tipo I, II, III y IV. Métodos: Estudio retrospectivo de los hallazgos clínicos, audiológicos y tratamiento (médico y/o quirúrgico) de 23 niños con diagnóstico de MPS tipo I, II, III o IV en seguimiento en un hospital terciario entre 1997 y 2015. Resultados: Seis casos de MPSI, 8 de MPSII, 4 de MPSIII y 5 de MPSIV fueron revisados. Al inicio del seguimiento el 71,2% de los pacientes presentaban otitis media serosa (OMS) y el 54% de los casos presentaban algún tipo de hipoacusia. El comportamiento de la hipoacusia fue fluctuante en cada uno de los subgrupos de MPS, encontrando mayor afectación y variabilidad en los tipos I y II. Conclusiones: Los niños afectos de MPS tienen un alto riesgo de hipoacusia, siendo MPS tipo I y II los casos con mayor porcentaje de afectación audiológica y con un comportamiento menos homogéneo, mostrando un importante porcentaje de hipoacusias transmisivas que progresan a componentes mixtos o neurosensoriales. Se requiere un seguimiento periódico dada la importante repercusión de esta patología en la calidad de vida y en el desarrollo de estos pacientes (AU)

Objective: The aim of our study is to reflect hearing impairment of 23 children diagnosed with mucopolysaccharidosis (MPS) type I, II, III and IV. Methods: Retrospective study of the clinical, audiological and treatment (medical vs surgical) findings of 23 children diagnosed with MPS type I, II, III or IV followed at a Tertiary Referral Hospital between 1997 and 2015. Results: Six cases of MPSI, 8 of MPSII, 4 of MPSIII and 5 of MPSIV were reviewed. 71.2% of patients had secretory otitis media (SOM) and 54% of patients had some type of hearing loss (HL). The behaviour of hearing loss was variable in each of the subgroups of MPS, finding greater involvement and variability in types I and II. Conclusions: Children with MPS have a high risk of hearing loss. A significant percentage of transmissive HL progressing to mixed or sensorineural HL was observed. This was more common in types I and II. Periodic follow up of these patients is mandatory because of hearing impairment and consequences for their development and quality of life (AU)

Implante coclear en paciente con schwannoma intracoclear / Cochlear implant in patient with intracochlear schwannoma

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Audiological findings in children with mucopolysaccharidoses type i-iv. / Hallazgos audiológicos en niños con mucopolisacaridosis tipos i-iv.

OBJECTIVE: The aim of our study is to reflect hearing impairment of 23children diagnosed with mucopolysaccharidosis (MPS) typeI, II, III and IV. METHODS: Retrospective study of the clinical, audiological and treatment (medical vs surgical) findings of 23children diagnosed with MPS typeI, II, III or IV followed at a Tertiary Referral Hospital between 1997 and 2015. RESULTS: Six cases of MPSI, 8 of MPSII, 4 of MPSIII and 5 of MPSIV were reviewed. 71.2% of patients had secretory otitis media (SOM) and 54% of patients had some type of hearing loss (HL). The behaviour of hearing loss was variable in each of the subgroups of MPS, finding greater involvement and variability in typesI and II. CONCLUSIONS: Children with MPS have a high risk of hearing loss. A significant percentage of transmissive HL progressing to mixed or sensorineural HL was observed. This was more common in typesI and II. Periodic follow up of these patients is mandatory because of hearing impairment and consequences for their development and quality of life.

Malformaciones del octavo par en niños / Malformation of the eighth cranial nerve in children

Introducción y objetivos: La prevalencia de la hipoacusia neurosensorial (HNS) congénita es aproximadamente de 1,5-6 de cada 1.000 nacimientos. La disfunción del nervio auditivo (neuropatía auditiva) puede estar presente hasta en el 1-10% de los casos de HNS en niños, siendo menos frecuentes aquellas pérdidas debidas a una aplasia o hipoplasia del nervio auditivo. Los objetivos del estudio son describir la clínica, umbrales auditivos y etiología en una muestra de niños con HNS y aplasia o hipoplasia del octavo par. Metodología: Presentamos 34 niños (edad media 20 meses) con malformación del nervio auditivo e HNS profunda de una muestra de 385 niños implantados en los últimos 10 años. Estudiamos las características demográficas, clínicas y malformaciones asociadas (clasificaciones de Casselman y Sennaroglu). Los datos fueron procesados usando un análisis estadístico descriptivo bivariante (p<0,05). Resultados: Un 58,8% fueron bilaterales (IIa/IIa y I/I fueron los más frecuentes). De los unilaterales el IIb fue el más frecuente. La sensibilidad del cribado auditivo fue de un 77,4%. Encontramos diferencias estadísticamente significativas entre el grado de hipoacusia y los distintos tipos de aplasia (clasificación de Casselman). La sensibilidad de la TC fue del 46,3% y la especificidad del 85,7%. La RNM fue la prueba de imagen más sensible. Conclusiones: Un 10% de los niños en estudio para un implante coclear tienen una aplasia o hipoplasia del nervio auditivo. El grado de pérdida auditiva está directamente relacionado con los distintos tipos de aplasia (clasificación de Casselman). Aunque la TC y la RNM son complementarias, la RNM es el test de elección para la detección de malformaciones del nervio auditivo (AU)

Introduction and objectives: Prevalence of congenital sensorineural hearing loss (SNHL) is approximately 1.5-6 in every 1,000 newborns. Dysfunction of the auditory nerve (auditory neuropathy) may be involved in up to 1%-10% of cases; hearing losses because of vestibulocochlear nerve (VCN) aplasia are less frequent. The objectives of this study were to describe clinical manifestations, hearing thresholds and aetiology of children with SNHL and VCN aplasia. Methodology: We present 34 children (mean age 20 months) with auditory nerve malformation and profound HL taken from a sample of 385 children implanted in a 10-year period. We studied demographic characteristics, hearing, genetics, risk factors and associated malformations (Casselman's and Sennaroglu's classifications). Data were processed using a bivariate descriptive statistical analysis (P<.05). Results: Of all the cases, 58.8% were bilateral (IIa/IIa and I/I were the most common). Of the unilateral cases, IIb was the most frequent. Auditory screening showed a sensitivity of 77.4%. A relationship among bilateral cases and systemic pathology was observed. We found a statistically significant difference when comparing hearing loss impairment and patients with different types of aplasia as defined by Casselman's classification. Computed tomography (CT) scan yielded a sensitivity of 46.3% and a specificity of 85.7%. However, magnetic resonance imaging (MRI) was the most sensitive imaging test. Conclusions: Ten percent of the children in a cochlear implant study had aplasia or hypoplasia of the auditory nerve. The degree of auditory loss was directly related to the different types of aplasia (Casselman's classification) Although CT scan and MRI are complementary, the MRI is the test of choice for detecting auditory nerve malformation (AU)

Malformation of the eighth cranial nerve in children. / Malformaciones del octavo par en niños.

INTRODUCTION AND OBJECTIVES: Prevalence of congenital sensorineural hearing loss (SNHL) is approximately 1.5-6 in every 1,000 newborns. Dysfunction of the auditory nerve (auditory neuropathy) may be involved in up to 1%-10% of cases; hearing losses because of vestibulocochlear nerve (VCN) aplasia are less frequent. The objectives of this study were to describe clinical manifestations, hearing thresholds and aetiology of children with SNHL and VCN aplasia. METHODOLOGY: We present 34 children (mean age 20 months) with auditory nerve malformation and profound HL taken from a sample of 385 children implanted in a 10-year period. We studied demographic characteristics, hearing, genetics, risk factors and associated malformations (Casselman's and Sennaroglu's classifications). Data were processed using a bivariate descriptive statistical analysis (P<.05). RESULTS: Of all the cases, 58.8% were bilateral (IIa/IIa and I/I were the most common). Of the unilateral cases, IIb was the most frequent. Auditory screening showed a sensitivity of 77.4%. A relationship among bilateral cases and systemic pathology was observed. We found a statistically significant difference when comparing hearing loss impairment and patients with different types of aplasia as defined by Casselman's classification. Computed tomography (CT) scan yielded a sensitivity of 46.3% and a specificity of 85.7%. However, magnetic resonance imaging (MRI) was the most sensitive imaging test. CONCLUSIONS: Ten percent of the children in a cochlear implant study had aplasia or hypoplasia of the auditory nerve. The degree of auditory loss was directly related to the different types of aplasia (Casselman's classification) Although CT scan and MRI are complementary, the MRI is the test of choice for detecting auditory nerve malformation.

Meningitis de repetición asociada a síndrome de Duane tipo 1 / Recurrent meningitis associated with Duane syndrome type I

Presentamos el caso de un paciente varón de 17 meses con síndrome de Duane tipo 1 bilateral asociado a displasia cocleovestibular unilateral, fístula perilinfática y meningitis de repetición. El diagnóstico se realizó mediante TC de peñascos y RM cerebral. Se describe su manejo y tratamiento, así como la evolución postoperatoria. Debido a la poca frecuencia de este síndrome, así como a la de sus complicaciones de tipo otoneurológico, consideramos que se trata de un caso excepcional(AU)

We present the case of a 17-month-old male patient with a bilateral Duane syndrome type 1 associated to unilateral cochleovestibular dysplasia, perilymphatic fistula and recurrent meningitis. Diagnosis was carried out by MRI and CT scan. His management and treatment are described, as well as the postoperative evolution. We believe this is an exceptional case due to the low frequency of this syndrome, as well as to the otoneurological complications(AU)

Agenesia aislada del VIII par de diagnóstico tardío / Late diagnosis of isolated agenesis of cranial nerve VIII

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Recurrent meningitis associated with Duane syndrome type I.

We present the case of a 17-month-old male patient with a bilateral Duane syndrome type 1 associated to unilateral cochleovestibular dysplasia, perilymphatic fistula and recurrent meningitis. Diagnosis was carried out by MRI and CT scan. His management and treatment are described, as well as the postoperative evolution. We believe this is an exceptional case due to the low frequency of this syndrome, as well as to the otoneurological complications.