RESUMO
La pared del conducto auditivo externo (CAE) parte de la formación del hueso timpánico; integrándose posteriormente a la porción petrosa del hueso temporal. El agujero timpánico o foramen de Huschke corresponde a un defecto en la osificación en donde existe fusión incompleta de porciones anteriores y posteriores del anillo timpánico dejando una abertura que comunica el CAE hacia anterior. Su presencia es normal hasta los 5 años de edad, tiempo en que se debiese obliterar. Su incidencia es baja (3-24%), pero la persistencia en adulto, conlleva sintomatología inespecífica caracterizada por otalgia, dolor en articulación temporomandibular (ATM), tinnitus, hipoacusia o manifestaciones complejas como descarga salival en CAE durante la masticación. Clínicamente puede complicar procedimientos de infiltración y artroscopias de ATM. Rara vez ocasiona, en pacientes mayores de 50 años, herniación de la cabeza del cóndilo mandibular. Su diagnóstico puede ser clínico por medio de otoscopia, donde se observa protuberancia de tejido en pared anterior del CAE, que aumenta de tamaño con la boca cerrada. También puede ser imagenológico con una tomografía computarizada. El tratamiento incluye desde medidas conservadoras para manejo del dolor e inflamación, hasta quirúrgicas con la implantación de injertos, placas o prótesis para cerrar la estructura o para reemplazar el cóndilo mandibular. El presente estudio pretende aportar incidencia dentro del área de estudio. Se analiza por observación directa, cráneo seco, completo, masculino, edad entre 12 a 15 años (según morfología del cóndilo mandibular y erupción dental). Se observa agujero de Huschke, bilateral, ambos permeables de diámetro 4 mm en ambos casos, determinados con regla milimetrada. La relevancia del defecto se asocia a la práctica clínica de otorrinolaringólogos, cirujanos maxilofaciales y odontólogos, ya sea como diagnóstico diferencial asociado a los síntomas inespecíficos, como para procedimientos más invasivos en la zona tales como infiltraciones o artroscopias de ATM
The wall of the external auditory canal (EAC) starts from the formation of the tympanic bone; later it is integrated to the petrous portion of the temporal bone. The tympanic foramen or foramen of Huschke corresponds to a defect in ossification where there is incomplete fusion of the anterior and posterior portions of the tympanic ring leaving an opening that communicates the EAC to its anterior aspect. Its presence is normal until 5 years of age, when it should be absolutely obliterated. Its incidence is low (3-24%), but its persistence in adults leads to non specific symptoms characterized by otalgia, pain in the temporomandibular joint (TMJ), tinnitus, hearing loss, or complex manifestations such as salivary discharge in the CAE during mastication. Clinically, it may complicate TMJ infiltration and arthroscopy procedures. It rarely causes herniation of the mandibular condyle head in patients older than 50 years. Its diagnosis can be clinical by means of otoscopy, where tissue protrusion is observed in the anterior wall of the CAE, which increases in size when the mouth is closed. It can also be imaging with computed tomography. Treatment includes from conservative measures to treat pain and inflammation, to surgical measures with the implantation of grafts, plates or prosthesis to close the structure or to replace the mandibular condyle. The present study aims to provide incidence within the study area. It is analyzed by direct observation, dry skull, complete, male, age between 12 to 15 years (according to mandibular condyle morphology and dental eruption). Huschke's foramen was observed, bilateral, both permeable, diameter 4mm in both cases, determined with a millimeter ruler. The relevance of the defect is associated with the clinical practice of otolaryngologists, maxillofacial surgeons and dentists, either as a differential diagnosis associated with nonspecific symptoms, or for more invasive procedures in the area such as infiltrations or TMJ arthroscopies.
Assuntos
Humanos , Masculino , Criança , Adolescente , Anormalidades Craniofaciais/epidemiologia , Meato Acústico Externo/anormalidades , Crânio , Incidência , Observação/métodosRESUMO
OBJECTIVE: To describe, in terms of functional gain and word recognition, the audiological results of patients under 18 years of age implanted with the active bone conduction implant, Bonebridge™. DESIGN: Retrospective case studies conducted by reviewing the medical records of patients receiving implants between 2014 and 2016 in the public health sector in Chile. STUDY SAMPLE: All patients implanted with the Bonebridge were included (N = 15). Individuals who had bilateral conductive hearing loss, secondary to external ear malformations, were considered as candidates. RESULTS: The average hearing threshold one month after switch on was 25.2 dB (95%CI 23.5-26.9). Hearing thresholds between 0.5 and 4 kHz were better when compared with bone conduction hearing aids. Best performance was observed at 4 kHz, where improvements to hearing were observed throughout the adaptation process. There was evidence of a significant increase in the recognition of monosyllables. CONCLUSIONS: The Bonebridge implant showed improvements to hearing thresholds and word recognition in paediatric patients with congenital conductive hearing loss.
Assuntos
Condução Óssea , Microtia Congênita/cirurgia , Meato Acústico Externo/cirurgia , Perda Auditiva Bilateral/cirurgia , Perda Auditiva Condutiva/cirurgia , Prótese Ossicular , Substituição Ossicular/instrumentação , Percepção da Fala , Adolescente , Comportamento do Adolescente , Desenvolvimento do Adolescente , Limiar Auditivo , Criança , Comportamento Infantil , Desenvolvimento Infantil , Pré-Escolar , Chile , Microtia Congênita/diagnóstico , Microtia Congênita/fisiopatologia , Microtia Congênita/psicologia , Meato Acústico Externo/anormalidades , Meato Acústico Externo/fisiopatologia , Feminino , Perda Auditiva Bilateral/diagnóstico , Perda Auditiva Bilateral/fisiopatologia , Perda Auditiva Bilateral/psicologia , Perda Auditiva Condutiva/diagnóstico , Perda Auditiva Condutiva/fisiopatologia , Perda Auditiva Condutiva/psicologia , Humanos , Masculino , Desenho de Prótese , Reconhecimento Psicológico , Recuperação de Função Fisiológica , Estudos Retrospectivos , Resultado do TratamentoRESUMO
Descreve-se o caso de um cão, Pinscher, fêmea de 11 meses de idade, com alteração anatômica da orelha do lado direito. Após avaliação, foi realizado o diagnóstico clínico e o radiográfico de microtia com atresia do canal auditivo do lado direito. Como o animal não apresentava sinais de alterações no sistema vestibular ou otite, optou-se pelo acompanhamento clínico do caso. A microtia, caracterizada pela hipoplasia parcial ou completa da pina, assim como outras anomalias do conduto auditivo, é raramente descrita em medicina veterinária. De acordo com a revisão de literatura realizada, este é o primeiro relato ocorrido no Brasil de um cão com microtia e atresia congênita do canal auditivo sem a associação de síndrome vestibular.(AU)
This paper describes an 11-month-old female Pinscher dog, with anatomical changes of the ear on the right side. After physical exam, clinical and radiographic diagnosis of microtia with ear canal atresia on the right side was made. As the animal did not show any signs of vestibular system changes or ear infections, the veterinarians opted for monitoring the patient. Microtia, characterized by the partial or complete hypoplasia of pina, as well as other abnormalities of ear canal are rarely described in veterinary medicine. As far as the author´s knowledge by literature review carried out, this is the first report of a dog with microtia and congenital ear canal atresia not associated with vestibular syndrome in Brazil.(AU)
Assuntos
Animais , Cães , Anormalidades Congênitas/veterinária , Microtia Congênita/veterinária , Meato Acústico Externo/anormalidades , Vestíbulo do Labirinto , Variação Anatômica , Orelha/anormalidades , Orelha/anatomia & histologia , Otite/diagnóstico , Otite/veterináriaRESUMO
Introduction Hearing loss is the most common clinical finding in patients with malformation of the external ear canal. Among the possibilities of treatment, there is the adaptation of hearing aids by bone conduction and the adaptation of implantable hearing aids. Objective To assess speech perception with the use of Vibrant Soundbridge (VBS - MED-EL, Innsbruck, Austria) associated with additional amplification in patients with bilateral craniofacial malformation. Method We evaluated 11 patients with bilateral malformation over 12 years with mixed hearing loss or bilateral conductive. They were using the Softband (Oticon Medical, Sweden) and bone conduction hearing aid in the ear opposite the one with the VSB.We performed the evaluation of speech perception using the Hearing in Noise Test. Results Participants were eight men and three women with a mean of 19.5 years. The signal / noise ratio presented significant results in patients fitted with VSB and bone conduction hearing aid. Conclusion The results of speech perception were significantly better with use of VBS combined with bone conduction hearing aids.
Assuntos
Humanos , Masculino , Feminino , Meato Acústico Externo/anormalidades , Orelha Externa , Percepção da Fala , Condução Óssea , Auxiliares de Audição , Perda AuditivaRESUMO
Descreve-se o caso de um cão, Pinscher, fêmea de 11 meses de idade, com alteração anatômica da orelha do lado direito. Após avaliação, foi realizado o diagnóstico clínico e o radiográfico de microtia com atresia do canal auditivo do lado direito. Como o animal não apresentava sinais de alterações no sistema vestibular ou otite, optou-se pelo acompanhamento clínico do caso. A microtia, caracterizada pela hipoplasia parcial ou completa da pina, assim como outras anomalias do conduto auditivo, é raramente descrita em medicina veterinária. De acordo com a revisão de literatura realizada, este é o primeiro relato ocorrido no Brasil de um cão com microtia e atresia congênita do canal auditivo sem a associação de síndrome vestibular.(AU)
This paper describes an 11-month-old female Pinscher dog, with anatomical changes of the ear on the right side. After physical exam, clinical and radiographic diagnosis of microtia with ear canal atresia on the right side was made. As the animal did not show any signs of vestibular system changes or ear infections, the veterinarians opted for monitoring the patient. Microtia, characterized by the partial or complete hypoplasia of pina, as well as other abnormalities of ear canal are rarely described in veterinary medicine. As far as the author´s knowledge by literature review carried out, this is the first report of a dog with microtia and congenital ear canal atresia not associated with vestibular syndrome in Brazil.(AU)
Assuntos
Animais , Cães , Microtia Congênita/veterinária , Anormalidades Congênitas/veterinária , Meato Acústico Externo/anormalidades , Vestíbulo do Labirinto , Variação Anatômica , Orelha/anormalidades , Orelha/anatomia & histologia , Otite/diagnóstico , Otite/veterináriaRESUMO
Se expone el caso poco frecuente de colesteatoma congénito del conducto auditivo externo en un lactante de 6 meses de edad que se presentó inicialmente como absceso.
We review the unusual presentation of a congenital cholesteatoma of the external auditory meatus in a 6 months old infant, initially presented as an abscess.
O caso raro de colesteatoma congênito do canal auditivo externo em crianças de 6 meses de idade, que apresentou inicialmente como abscesso está exposto.
Assuntos
Masculino , Humanos , Lactente , Colesteatoma/diagnóstico , Colesteatoma/cirurgia , Meato Acústico Externo/anormalidadesRESUMO
La atresia de conducto auditivo externo tiene una incidencia de 1 por 1.000 ó 2.000 nacidos vivos, predominantemente unilateral. Su manejo actual es controversial, en especial la cirugía de reconstrucción. En el último tiempo se han desarrollado dispositivos osteointegrados, que han revolucionado el tratamiento y cuestionado la indicación de cirugía. El liderazgo por un tiempo importante lo ha tenido el dispositivo tipo BAHA, pero que ha tenido problemas en el largo plazo, principalmente en relación con el tornillo del implante. En respuesta a estos problemas, se ha diseñado un nuevo implante osteointegrado de nombre Bonebridge®, con beneficios frente a su antecesor. Como en nuestro medio se tiene poca experiencia en este dispositivo se presenta una revisión a propósito de un caso clínico exitoso. El caso corresponde a un paciente de 18 años con hipoacusia de conducción máxima bilateral congénita, con diagnóstico de atresia de conducto auditivo externo bilateral, con inadecuada ganancia auditiva del cintillo óseo tradicional. Tanto la revisión bibliográfica como el caso clínico nos permiten aseverar que Bonebridge® corresponde a tratamiento adecuado en el manejo de la atresia del conducto auditivo externo, con ciertos beneficios sobre otros dispositivos y la cirugía.
The external auditory canal atresia has an incidence of 1 per 1000 or 2000 live births predominantly unilateral. Its management is controversial, especially with the decision of reconstructive surgery. Lately, have developed osseo integrated bone conduction devices, which have come to revolutionize the treatment and questioning the indication for surgery. The leadership for a long time its has had it the BAHA device type, but has several problems in long-term, mainly in relation to the screw used in the implant. In response to this problems, was designed a new osseo integrated implant named Bonebridge®, showing benefits over its predecessor. As in our setting there is little experience with this device, we present a review about a successful clinical case. The case is a patient of 18 years with a maximal bilateral hearing loss caused by a congenital bilateral atresia of the external auditory canal, and inadequate audition gain with traditional bone headband. As much the bibliographical overhaul as the clinical case allows to assert that Bone-bridge® corresponds to an alternative of treatment in the atresia of the external auditory canal and with certain benefits by on the other devices, as the surgery.
Assuntos
Humanos , Masculino , Adolescente , Próteses e Implantes , Condução Óssea , Meato Acústico Externo/anormalidades , Perda Auditiva Condutiva/cirurgia , Perda Auditiva Condutiva/etiologiaRESUMO
This manuscript reports an uncommon case of inferior third molar facial abscess with purulent secretion drainage through the left external acoustic meatus. The patient's left external acoustic meatus was filled with a purulent secretion observed on a CT scan. He underwent surgery to drain the facial abscess. Despite facial abscesses being routine occurrences, the literature does not contain many case reports of odontogenic facial abscesses with drainage via the external acoustic meatus. These situations occur in two possible ways: multiple fissures in the anterior wall of the cartilaginous portion of the external acoustic meatus; and congenital defects that are occasionally present in the anterior-superior aspect of the external acoustic meatus, known as the foramen of Huschke, which allow communication between the external acoustic meatus and mandibular fossa. These defects may also predispose the patient to the spread of the infection or tumour from the external auditory canal to the infratemporal fossa and vice versa. No otological sequelae were observed in this case. The authors conclude that the hypothesis of bone malformation cannot be excluded, and affirm that any facial abscess requires appropriate and immediate treatment for adequate resolution, by removing the causal factor and providing systemic support.