Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 482
Filter
1.
Int. j. morphol ; 38(6): 1676-1680, Dec. 2020. tab, graf
Article in Spanish | LILACS | ID: biblio-1134497

ABSTRACT

RESUMEN: La dehiscencia timpánica o Foramen de Huschke (FH) se considera un rasgo craneal morfológico menor, hipostósico, no estocástico, transitorio, ubicado en laplaca timpánica del hueso temporal, cuya expresión se considera fisiológica hasta los 5 años de edad, denominándose como persistente su presencia a mayor edad. La mención de este rasgo en la literatura anatómica se presenta de manera escasa, debido a una muy baja presencia en poblaciones modernas, situación que cambia al estudiar poblaciones arqueológicas. El propósito de este estudio es describir la expresión del foramen de Huschke en una población arqueológica de Chile central. Fueron analizados 27 huesos temporales obtenidos de los restos óseos de la población del Monumento Arqueológico Cementerio Tutuquén, los cuales están depositados en el Museo Regional de Rancagua, Chile. Se evaluó presencia y ubicación del foramen, sexo, temporalidad y rango etáreo para cada muestra incluida. El FH se presentó en un 77,78% de los temporales, siendo 47,62% restos masculinos, 28,57% femeninos y 23,81% de sexo indeterminado. La totalidad de los restos de niños y subadultos presentaron FH, mientras que en adultos su expresión disminuye hasta un 68,42%. La ubicación fue un 38,10% en cuadrante inferomedial, 33,33% superolateral, 23,81% superomedial, 4,71% central. No se encontraron FH de ubicación inferolateral. El único temporal observable del período 10.000 AP (antes del presente, 1950) presentó FH, mientras que, en el período 7.000 AP se presentó en 6/7 temporales y en 14/19 temporales del período 1.000 AP. Los datos aportados complementan el conocimiento anatómico del proceso de osificación del hueso timpánico y la expresión de la dehiscencia timpánica como rasgo morfológico menor desde el estudio de poblaciones arqueológicas.


SUMMARY: The tympanic dehiscence or Foramen of Huschke (FH) is considered a transient minor, hypostosic, non-stochastic cranial feature, located in the tympanic plate of the temporal bone. Its expression is considered physiological until the age of five, and its presence is constant after that. This characteristic is seldom mentioned in anatomical literature since it is infrequent in modern populations. However, there is a difference when archaeological populations are studied. The purpose of this study is to describe the expression of the Huschke foramen in an archaeological population of central Chile. For this analysis, 27 temporal bones were obtained from human skeletal remains of the Tutuquén Cemetery Archaeological Monument. Presence and location of the foramen, sex, time period and age range were evaluated for each sample. The FH occurred in 77.78% of the temporal bones, with 47.62% male, 28.57% female and 23.81% of undetermined sex. All children and subadults presented FH, while in adults it decreased to 68.42%. The location was 38.10% in the inferomedial quadrant, 33.33 % superolateral, 23.81% superomedial, 4.71% central, and no FH was found at the inferolateral position. The only temporal bone identified in the 10,000 BP (before the present 1950) presented FH, while in the 7,000 BP period, it presented in 6/7 temporal bones and in the 1000 BP period, it was found in 14/ 19 temporal bones. The data provided complements anatomical knowledge of the tympanic bone ossification process, and in archaeological population studies, tympanic dehiscence presents as a lesser morphological characteristic.


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Adolescent , Adult , Middle Aged , Temporal Bone/anatomy & histology , Ear Canal/anatomy & histology , Archaeology , Chile
3.
Prensa méd. argent ; 106(4): 203-207, 20200000. ilus
Article in Spanish | LILACS, BINACIS | ID: biblio-1367969

ABSTRACT

La queratosis folicular invertida es una neoplasia benigna poco frecuente originada en el epitelio folicular a nivel del infundíbulo. Si bien no posee una clínica característica ni patognomónica, suele presentarse como una lesión solitaria, asintomática, de crecimiento lento, en la cara. El diagnóstico de certeza se realiza con el estudio histopatológico, que evidencia una proliferación de células basaloides y de células escamosas queratósicas con remolinos escamosos, que se extienden a la dermis. El tratamiento de elección es la extirpación quirúrgica, con buen pronóstico y escasa tendencia a la recurrencia. La localización en conducto auditivo externo es extremadamente infrecuente (en la literatura revisada hemos encontrado sólo tres casos comunicados) y representa un desafío tanto diagnóstico como terapéutico. Se presenta un paciente con una queratosis folicular invertida localizada en conducto auditivo externo izquierdo de 5 años de evolución que comprometía significativamente su calidad de vida por la sintomatología (dolor, otorrea, hipoacusia) y que evolucionó satisfactoriamente con el tratamiento instaurado (extirpación quirúrgica y posterior topicación de la zona con ácido tricloroacético 50%)


Inverted follicular keratosis is a rare benign neoplasm originating from the infundibulum of the follicular epithelium. Although it does not have a characteristic or pathognomonic clinic, it usually presents as a solitary, asymptomatic, slow-growing lesion on the face. The certain diagnosis is made with the histopathological study, which shows a proliferation of basaloid cells and squamous keratotic cells with squamous eddies, which extend to the dermis. The treatment of choice is surgical removal, with a good prognosis and little tendency to recur. Localization in the external auditory canal is extremely rare (in the reviewed literature we have found only three reported cases) and represents both a diagnostic and therapeutic challenge. We present a patient with an inverted follicular keratosis located in the left external auditory canal of 5 years of evolution that significantly compromised his quality of life due to the symptoms (pain, otorrhea, hearing loss) and that evolved satisfactorily with the established treatment (surgical excision and subsequent topication of the area with 50% trichloroacetic acid).


Subject(s)
Humans , Male , Adult , Trichloroacetic Acid/therapeutic use , Diagnosis, Differential , Ear Canal/pathology , Darier Disease/surgery , Darier Disease/therapy
5.
Article in English | AIM, AIM | ID: biblio-1268313

ABSTRACT

Introduction: aural foreign bodies (FB) are frequent in pediatric otorhinolaryngology and in pediatric emergencies. The objective of this study was to describe the socio-demographic, clinical and therapeutic aspects of aural FB in children in a pediatric hospital in Senegal. Methods: this was a four-year hospital-based descriptive study performed in the Otorhinolaryngology department of the Children's Hospital of Diamniadio, from 1st January 2013 to 31 December 2016 including all children under 15 years of age received for aural FB. The variables studied were age, gender, provenance, presenting symptom, time to consultation, the type of FB and morbidity. Results: sixty three FB were extracted. Mean age was 6 years 4 months. 52.4% of patients were under 5 years old. There was a slight female predominance (32/63). Location was in the right ear canal in 55.6%. Seventy three percent of patients presented in our office were asymptomatic. The median time to consultation was 4 days. Within the first 24 hours after insertion, 22.2% of children presented to our office. Beads were the first FB (29.68%), followed by seeds and cotton (12.5% respectively). Foreign bodies' extraction were performed in consultation for 79.4% of patients. The morbidity was 20.6%. It was primarily otitis externa (8%). Myringoplasty was performed in one patient who had sequelae of tympanic membrane perforation. Conclusion: aural FB is a common accident in under-5 year-olds. In our context there is a delayed consultation. Morbidity is similar to that of the literature


Subject(s)
Child , Ear Canal , Foreign Bodies , Hospitals, Pediatric , Otolaryngology , Senegal
6.
Audiol., Commun. res ; 24: e1973, 2019. tab, graf
Article in Portuguese | LILACS | ID: biblio-1001368

ABSTRACT

RESUMO Objetivo Analisar os achados audiológicos em indivíduos com desordem temporomadibular e comparar esses achados com indivíduos sem desordem temporomanbibular. Métodos A amostra foi composta por 39 participantes adultos, de ambos os gêneros, com diagnóstico prévio de desordem temporomandibular (grupo de estudo) e 39 participantes adultos, sem desordem temporomandibular (grupo controle). Todos os participantes foram submetidos à audiometria tonal limiar em altas frequências, imitanciometria e pesquisa das emissões otoacústicas evocadas por produto de distorção. Resultados Observou-se prevalência de desordem temporomandibular no gênero feminino e a média de idade ficou acima da quarta década de vida. Na audiometria tonal limiar, foi observada ocorrência de perda auditiva do tipo neurossensorial e condutiva, no grupo de estudo, além de piores limiares auditivos em altas frequências. Em ambos os grupos, houve maior ocorrência de curva timpanométrica do tipo A, bem como diferenças entre os grupos na pesquisa do reflexo acústico ipsilateral e contralateral e no registro das emissões otoacústicas evocadas por produto de distorção. Conclusão Indivíduos com desordem temporomandibular apresentam piores resultados nos limiares auditivos, na timpanometria, nos reflexos acústicos ipsilaterais e contralaterais e nas emissões otoacústicas evocadas, quando comparados com o grupo controle.


ABSTRACT Purpose To analyze the audiological findings in individuals with temporomandibular disorder and compare these findings with individuals without temporomandibular disorder. Methods The sample was composed by 39 adult participants, both genders, with previous diagnosis of temporomandibular disorder (study group) and 39 adult participants, without temporomandibular disorder (control group). All the participants were submitted to audiometry including high frequencies, Immittance acoustic (Tympanometry and contralateral acoustic reflexes) and distortion product evoked otoacoustic emissions. Results The prevalence of temporomandibular disorder on female gender was observed, average age was over forty years old. In the audiometry, it was observed the incidence of hearing loss of a sensorineural and conductive type in the Study Group, besides worst hearing thresholds in high frequencies. In both groups, there was a bigger incidence of a type A tympanometric curve, as well as there were differences between the groups in the research of the ipsilateral and contralateral acoustic reflex and in the recording of distortion product evoked otoacoustic emissions. Conclusion It's possible to conclude that individuals with temporomandibular disorder show worst results in the hearing thresholds, in the tympanometry, in the ipsilateral and contralateral acoustic reflexes, in the evoked otoacoustic emissions, when compared to the control group.


Subject(s)
Humans , Male , Female , Adult , Acoustic Impedance Tests , Temporomandibular Joint Dysfunction Syndrome , Hearing Loss, Mixed Conductive-Sensorineural , Evoked Potentials, Auditory , Reflex, Acoustic , Audiometry , Auditory Threshold , Ear Canal , Hearing Loss , Hearing Tests
7.
Article in Portuguese | LILACS | ID: biblio-1051127

ABSTRACT

Introdução: os apêndices pré-auriculares, em conjunto com outras malformações craniofaciais e do osso temporal, estão associados à deficiência auditiva. Dentre as malformações do pavilhão auricular, encontram-se os apêndices pré-auriculares, formados por pele e cartilagem, e que podem estar presentes em qualquer ponto entre o trágus da orelha e o ângulo da boca, uni ou bilaterais. Objetivo: avaliar a resposta auditiva em 906 recém-nascidos sem indicadores de risco para deficiência auditiva e com apêndices pré-auriculares isolados (uni ou bilaterais) quanto a: prevalência de recém-nascidos com apêndices pré-auriculares; respostas de reflexo cócleo-palpebral; características das emissões otoacústicas; características do potencial evocado auditivo de tronco encefálico; e a incidência dessa causuística que apresente perda auditiva. Método: a identificação de indicadores de risco para deficiência auditiva foi realizada a partir da carteira do recém-nascido, do prontuário médico e de uma entrevista com os pais. Foram avaliados o meato acústico externo e a membrana timpânica através de otoscopia e espéculos auriculares. O reflexo cócleo-palpebral foi testado percutindo-se um agogô próximo ao recém-nascido. Pesquisa das emissões otoacústicas foi realizada com o aparelho ero scan etymotic research. Avaliou-se o potencial evocado auditivo do tronco encefálico. Resultado e discusssão: a prevalência de apêndices pré-auriculares foi de 1,1%. Todos apresentaram reflexo cócleo palpebral presente, passaram pelas EOA e o potencial evocado auditivo de tronco encefálico apresentou resposta eletrofisiológica dentro dos padrões de normalidade em todos os pacientes estudados. Conclusão: não houve correlação entre a perda auditiva e a presença de apêndices pré-auriculares


Introduction: pre-auricular appendages, together with other craniofacial malformations and temporal bone, are associated with hearing loss. Among the malformations of the auricle are the preauricular appendages, formed by skin and cartilage, and that can be present at any point between the tragus of the ear and the angle of the mouth, uni or bilateral. Objective: to evaluate the auditory response in 906 newborns without risk indicators for hearing loss and with isolated pre-auricular appendages (uni- or bilateral) for: prevalence of newborns with pre-auricular appendages; responses of cochlear-eyelid reflex; characteristics of otoacoustic emissions; characteristics of auditory brainstem evoked potential; and the incidence of this cause that presents hearing loss. Method: identification of risk indicators for hearing loss was carried out from the newborn's wallet, the medical record and the interview with the parents. The external acoustic meatus and the tympanic membrane were evaluated through otoscopy and atrial speculum. The cochlear-eyelid reflex was tested by percututing an agogot close to the newborn. Research on otoacoustic emissions was performed using the ero scan etymotic research apparatus. The auditory evoked potential of the brainstem was evaluated. Results and discussion: the prevalence of pre-auricular appendages was 1.1%. All of them presented a palpebral cochlear reflex present, passed through the OAE, and the auditory evoked potential of the brainstem presented an electrophysiological response within normality patterns in all patients studied. Conclusion: there was no correlation between hearing loss and the presence of pre-auricular appendages alone.


Subject(s)
Otoacoustic Emissions, Spontaneous , Persons With Hearing Impairments , Ear Canal
8.
Article in French | AIM, AIM | ID: biblio-1264235

ABSTRACT

L'absence de méat acoustique externe constitue 5.7% de l'ensemble des malformations de l'oreille. Il peut être isolé ou associé à d'autres malformations de l'oreille dont la fixation du malléus à la paroi latérale de la caisse du tympan. Nous rapportons un cas d'absence de méat acoustique externe gauche associée à une fixation pariétale antérieure bilatérale du malléus à la caisse tympanique


Subject(s)
Benin , Case Reports , Ear Canal , Malleus , Tympanic Membrane
9.
Article in Korean | WPRIM | ID: wpr-719319

ABSTRACT

A malignant tumor of the external auditory canal (EAC) is a rare tumor, with a prevalence of between 1 and 6 people per 1 million population. Common symptoms of the EAC cancer include otorrhea, hearing loss, otalgia, or tinnitus, which are similar to symptoms of otitis media or otitis externa. Therefore, diagnosis may be delayed due to lack of EAC cancer-specific symptoms and the prognosis is also relatively poor despite intensive treatment. The most malignant tumor of the EAC is squamous cell carcinoma (SCC), which usully invades the ear unilaterally. SCC of bilateral EAC is extremely rare. We report here a rare case of bilateral EAC SCC. In this case, unilateral EAC SCC was treated via stereotactic radiosurgery and contralateral EAC SCC developed subsequently. This case implicates that radiosurgery can be a treatment option for EAC SCC but it may have carcinogenic effect. This case also shows that the ear should be examined bilaterally even when unilateral EAC cancer is encountered.


Subject(s)
Carcinoma, Squamous Cell , Diagnosis , Ear , Ear Canal , Earache , Epithelial Cells , Hearing Loss , Otitis Externa , Otitis Media , Prevalence , Prognosis , Radiosurgery , Tinnitus
10.
Article in Korean | WPRIM | ID: wpr-760133

ABSTRACT

BACKGROUND AND OBJECTIVES: External auditory canal osteoma is an uncommon benign lesion and represents as unilateral solitary pedunculated mass. The aim of this study is to evaluate the clinical symptoms of osteoma and its treatment outcomes over a 10-year period in a tertiary hospital. SUBJECTS AND METHOD: Eight patients underwent operation to remove an external auditory canal osteoma at Chungbuk National University Hospital from 2008 to 2017. The medical records were retrospectively reviewed with regard to clinical characteristics, size and location of osteoma, method of surgery and treatment outcomes. RESULTS: The average age of patients was 41.8 years with the male predominance of 6:2. All of the lesions in the osteoma were unilateral and solitary (average size 5.0 mm). All of the eight cases were pedunculated: in four cases, the stalks of the osteoma were found on the tympanomastoid suture line and in three cases, it was found on the tympanosquamous suture line. Four patients were asymptomatic, where the lesions were found incidentally during unrelated evaluations. No patients were found with conductive hearing loss in the pure tone audiometry. Transcanal and endaural approach were used in five and three cases, respectively. Most of the cases were removed by curettage only, except for the two who needed additional drilling. The average surgery time was 15.6 minutes. There was no postoperative complication or recurrence. CONCLUSION: The external auditory canal osteoma was mostly unilateral and solitary. The removal of osteoma in the early stage was relatively easy with no recurrence or complication.


Subject(s)
Audiometry , Curettage , Ear Canal , Exostoses , Hearing Loss, Conductive , Humans , Male , Medical Records , Methods , Osteoma , Postoperative Complications , Recurrence , Retrospective Studies , Sutures , Tertiary Care Centers
11.
Article in Korean | WPRIM | ID: wpr-760121

ABSTRACT

Both neoplasm and infections arising from the external auditory canal (EAC) can involve the temporomandibular joint (TMJ) but rarely the reverse. A benign TMJ mass that presents as an EAC mass is a rare otologic entity as only seven cases have been reported worldwide. The authors experienced a 72-year-old male patient presenting with EAC mass with fluctuation when opening the mouth, which turned out to be caused by venous malformation of the TMJ. Surgical excision of the mass via endaural approach was successful. We present this case with a review of the literature.


Subject(s)
Aged , Constriction, Pathologic , Ear Canal , Humans , Male , Mouth , Temporomandibular Joint , Vascular Malformations , Veins
12.
Article in English | WPRIM | ID: wpr-739234

ABSTRACT

OBJECTIVES: The purposes of this study were to evaluate the clinical characteristics of temporal bone metastasis (TBM) and to determine whether the characteristics differed according to primary malignancy. METHODS: We retrospectively analyzed data on 20 patients diagnosed with TBM between January 2000 and January 2017. Demographics, the period from diagnosis of primary malignancy to TBM diagnosis, the period from TBM diagnosis to death, the type and staging of primary malignancy, otologic manifestations, and TBM sites were assessed. After the primary malignancies were divided into solid cancers and hematologic malignancies, each parameter was compared between the two groups. RESULTS: The most common primary malignancy with TBM was lung cancer (45%). The most common otologic symptoms and signs were facial palsy (30.5%) and hearing loss (30.5%). The temporal squama (23%) and the facial nerve (20%) were the most commonly involved. Most TBMs occurred late in the disease process after the primary malignancy first metastasized to other organs. Hematologic malignancies metastasized significantly more frequently to the external auditory canal and the middle ear/mastoid compared to solid cancers (P=0.001 and P=0.004, respectively). CONCLUSION: If otologic manifestations such as facial palsy and hearing loss are presented in patients at advanced stages of malignancy, TBM of primary malignancy should be suspected. In addition, hematologic malignancies tend to metastasize to the external auditory canal and the middle ear cleft more commonly than solid cancers do.


Subject(s)
Demography , Diagnosis , Ear Canal , Ear, Middle , Facial Nerve , Facial Paralysis , Head and Neck Neoplasms , Hearing Loss , Hematologic Neoplasms , Humans , Leukemia , Lung Neoplasms , Neoplasm Metastasis , Retrospective Studies , Temporal Bone
13.
Article in English | WPRIM | ID: wpr-740354

ABSTRACT

BACKGROUND AND OBJECTIVES: To determine the efficacy of filling the external auditory meatus with 1% clotrimazole at a single visit for the treatment of otomycosis. SUBJECTS AND METHODS: This prospective study included 40 patients who were referred to our clinic with complaints of ear itching, pain, and fullness, and were diagnosed with unilateral otomycosis. After cleaning the mycotic hyphae from the external auditory meatus, the ear canal was filled with 1% clotrimazole, using an intravenous catheter and syringe. The patients received follow-up examinations on post-treatment days 7, 15, and 45. RESULTS: The follow-up otomicroscopic examinations revealed that 95% of the ear canals were entirely clean and that all symptoms had resolved. The post-treatment scores of pain, aural fullness and itching were significantly lower than the pre-treatment scores (p < 0.01). CONCLUSIONS: Filling the external auditory meatus with 1% clotrimazole at a single visit is an easy, efficient, and cost-effective treatment for otomycosis. Additionally, high patient compliance makes this treatment superior to long-term topical therapy.


Subject(s)
Catheters , Clotrimazole , Ear , Ear Canal , Follow-Up Studies , Humans , Hyphae , Otomycosis , Patient Compliance , Prospective Studies , Pruritus , Syringes
14.
Article in English | WPRIM | ID: wpr-740347

ABSTRACT

Primary tumors arising from the external auditory canal (EAC) are rare. We describe two cases of mass lesions within the EAC causing slowly progressive hearing loss without otorrhea or otalgia. Otoendoscopic examination demonstrated total obstruction of the EAC, and pure tone audiometry revealed conductive hearing loss. Based on the findings of the histopathologic examination, one patient was diagnosed with venous hemangioma that was treated using surgical resection, and the other patient was diagnosed with diffuse large B-cell lymphoma (DLBCL) that was treated using external-beam radiation therapy. Although primary tumors in the EAC are rare, both benign tumors such as venous hemangiomas and malignant lesions such as DLBCL should be considered as possible differential diagnoses of mass lesions in the EAC.


Subject(s)
Audiometry , Diagnosis, Differential , Ear Canal , Earache , Hearing Loss , Hearing Loss, Conductive , Hemangioma , Humans , Lymphoma, B-Cell
15.
CoDAS ; 31(3): e20180058, 2019. tab, graf
Article in English | LILACS | ID: biblio-1001844

ABSTRACT

ABSTRACT Purpose This study aimed to evaluate the effects of complete external ear canal occlusion on hearing thresholds with aging. The goal was to decide which tuning fork is more appropriate to use for the contralateral occlusion test (COT), in individuals of different ages. Methods Forty-two normal hearing subjects between 21 and 67 years were divided into three age groups (20-30 years, 40-50 years, and 60-70 years). Participants underwent sound field audiometry tests with warble tones, with and without ear canal occlusion. Each ear was tested with the standard frequencies (250, 500, 1000, and 2000 Hz). The contralateral ear was suppressed by masking. Results Hearing thresholds showed an increase as the frequency increased from 20.85 dB (250 Hz, 20-30 years group) to 48 dB (2000 Hz, 60-70 years group). The threshold differences between occlusion and no occlusion conditions were statistically significant and increased ranging from 11.1 dB (250 Hz, 20-30 years group) to 32 dB (2000 Hz, 20-30 years group). We found statistically significant differences for the three age groups and for all evaluations except to 500 Hz difference and average difference. The mean hearing loss produced by occlusion at 500 Hz was approximately 19 dB. We found no statistically significant differences between right and left ears and gender for all measurements. Conclusion We conclude that the use of the 512 Hz tuning fork is the most suitable for COT, and its use may allow clinicians to distinguish mild from moderate unilateral conductive hearing loss.


RESUMO Objetivo O objetivo deste estudo foi avaliar o efeito da oclusão completa do canal auditivo externo nos limiares auditivos, em indivíduos de idades distintas, para apurar qual o diapasão mais adequado na realização do teste de oclusão contralateral (TOC). Método 42 indivíduos normo-ouvintes (21-67 anos) foram divididos em três grupos etários (20-30, 40-50 e 60-70 anos). Os participantes foram avaliados com testes de audiometria tonal liminar em campo livre, com e sem oclusão completa do canal auditivo externo. Cada ouvido foi testado para as frequências 250, 500, 1000 e 2000 Hz. No ouvido contralateral, foi realizado mascaramento, para evitar a ocorrência de audição contralateral. Resultados Verificou-se aumento dos limiares auditivos, diretamente proporcional ao aumento da frequência (desde 20.85 até 48 dB). A diferença nos limiares auditivos entre a condição de oclusão e de não oclusão foi estatisticamente significativa em todas as frequências e aumentou de forma diretamente proporcional com a frequência (desde 11.1 até 32 dB). Foram também encontradas diferenças estatisticamente significativas para os três grupos etários, em todos os parâmetros, exceto na diferença a 500 Hz e na diferença total média. A perda auditiva média resultante da oclusão aos 500 Hz foi de 19 dB. Não se encontraram diferenças estatisticamente significativas entre o ouvido direito e o esquerdo, e entre o gênero. Conclusão A utilização do diapasão de 512 Hz é a mais adequada para o TOC. A sua utilização pode permitir aos clínicos, em ambiente de consulta e de forma rápida, a distinção entre perda condutiva de grau leve a moderada.


Subject(s)
Humans , Male , Female , Adult , Aged , Young Adult , Aging/physiology , Ear Canal/physiology , Hearing Loss, Conductive/diagnosis , Hearing Tests/methods , Audiometry, Pure-Tone , Auditory Threshold , Cross-Sectional Studies , Hearing Loss, Conductive/physiopathology , Middle Aged
17.
Rev. otorrinolaringol. cir. cabeza cuello ; 78(4): 378-384, dic. 2018. tab, graf, ilus
Article in Spanish | LILACS | ID: biblio-985742

ABSTRACT

RESUMEN Introducción: El tratamiento de la otitis media crónica (OMC) colesteatomatosa es quirúrgico, cuyo objetivo es erradicar la enfermedad, evitar complicaciones y prevenir recurrencias. El gold standard es la timpanomastoidectomía con canal wall down (TCWD). Estudios en cadáver han definido que TCWD disminuye la audición 1-5 dB en frecuencias <1.000 Hz y 0-10 dB entre 1.000 y 3.000 Hz. De aquí nuestro interés por definir la influencia acústica de la pared posterosuperior del conducto auditivo externo (CAE). Objetivo: Determinar en cuantos decibeles se corrige la audición al reconstituir pared posterior del CAE pos-TCWD. Material y método: Trabajo experimental. A pacientes pos-TCWD se reconstituye de manera transitoria la pared posterior del CAE, realizándose audiometría pre y posprocedimiento. Resultados: 23 pacientes (25 oídos), promedio 48,8 años (18-72 años). En 96% existió una diferencia favorable al reconstruir la pared posterior, presentando una mejoría auditiva entre 1,2 y 10,6 dB (4,2 ± 2,8 dB). En frecuencias <1.000 Hz la mejoría fue de 6,0 dB (p <0,001), entre 1.000-3.000 Hz fue 2,6 dB (p <0,001) y >3.000 Hz no hubo diferencia. Considerando PTP de vía aérea la mejoría fue 4,6 dB (p <0,001). Conclusión: Nuestro estudio demuestra que existe mejoría auditiva en la gran mayoría de oídos evaluados al reconstituir la pared posterosuperior del CAE, alcanzando 6 dB en frecuencias <1.000 Hz y 2,6 dB en frecuencias medias. Si consideramos los PTP de vía aérea la mejoría es de 4,6 dB en presencia de pared posterior.


ABSTRACT Introduction: Cholesteatomas treatment is surgical and the goals are complete resection of it, to prevent complications and recurrences. The gold standard operative technique is canal wall down tympanomastoidectomy (CWDT), which reduces the recurrence rate lower than 2%. Studies on human temporal bones have defined that CWDT causes a decrease of 1 to 5 dB at frequencies below 1000 Hz and 0 to 10 dB between 1000 and 3000 Hz. Aim: To determine how many decibels the hearing is improved by reconstituting the posterior wall of the ear canal (EC) in patients after CWDT. Material and method: Experimental study. In patients after CWDT, the posterior wall of EC was reconstructed temporarily. Audiometry was performed before and after the procedure. Results: 23 patients were enrolled (25 ears evaluated). Average age 48.8 years (range 18 to 72 years). In 96% of the ears there was a difference after the procedure with a hearing improvement of 4.2 ± 2.8dB. In frequencies below 1000 Hz, hearing improvement was 6.0 dB (p<0.001), between 1000-3000 Hz, the improvement was 2.6 dB (p<0.001) and >3000 Hz there was no difference. When considering the airway-conduction pure tone average (PTA), the difference was a 4.6 dB improvement (p<0.001). Conclusions: Our study shows that there is a hearing improvement in the vast majority of ears that were evaluated by reconstituting the posterior wall of the EC, reaching a gain of 6 dB at frequencies <1000 Hz and 2,6 dB at mid frequencies. Considering the airway PTA, the improvement is 4.6 dB in the presence of posterior canal wall.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Young Adult , Otitis Media/surgery , Otologic Surgical Procedures , Cholesteatoma, Middle Ear , Audiometry , Chile , Recovery of Function , Ear Canal/surgery
18.
Rev. argent. neurocir ; 32(2): 86-93, jun. 2018. ilus
Article in Spanish | LILACS, BINACIS | ID: biblio-1223519

ABSTRACT

Introducción: El abordaje suboccipital retrosigmoideo es la vía principal para la resección de los schwannomas vestibulares (SV). La relación vascular más constante de los nervios del conducto auditivo interno es la arteria cerebelosa anteroinferior (ACAI); pudiendo su recorrido presentarse como un serio obstáculo para la resección completa de la lesión. Descripción del caso: Paciente varón de 38 años, con diagnóstico presuntivo de SV por resonancia magnética (Grado T3B). Se realiza cirugía por vía retrosigmoidea. Se observa a la ACAI totalmente recubierta por tejido dural y óseo, cuya liberación fue posible mediante fresado en la fosa subarcuata. Se logra una exéresis completa del tumor. El paciente evolucionó durante el estado posoperatorio sin déficit neurológico agregado. Discusión: La ACAI ha sido descripta fijada a la duramadre y/o incrustada en el hueso de la fosa subarcuata en escasas publicaciones, impidiendo la resección completa de un SV, especialmente de la porción intracanalicular. Sin embargo, su liberación supone riesgo adicional de lesión vascular. Conclusión: La lesión de la ACAI puede ser causal de alta morbilidad, por lo que el neurocirujano debe estar preparado para reconocer y resolver este tipo de situaciones.


Introduction: A retrosigmoid suboccipital approach is the route most commonly utilized to resect vestibular schwannomas (VS). However, the anterior inferior cerebellar artery (AICA) usually runs adjacent to internal auditory canal nerves, and its course may severely impede total tumor resection. Case report: A 38-year-old male patient presented with presumed grade T3B VS, diagnosed by magnetic resonance imaging (MRI). Surgery was performed using a retrosigmoid approach, during which the AICA was identified to be completely covered by dural and bone tissue. Further drilling in the subarcuate fossa was necessary to release the AICI, allowing for total gross resection of the VS. No neurological deficits were observed post-operatively. Discussion: On rare occasion, the AICA has been described fixed to the dura and/or embedded within subarcuate fossal bone, thereby preventing removal of the intra-canalicular portion of the VS and, hence, total resection. However, AICA release adds the risk of vascular injury. Conclusion: Injury to the AICA may cause high morbidity in patients with a vestibular schwannoma. Neurosurgeons must be able to recognize and deal with certain anatomical configurations that place patients at particularly-high risk.


Subject(s)
Humans , Neurilemmoma , Arteries , Neuroma, Acoustic , Ear Canal
20.
Health sci. dis ; 19(2): 61-64, 2018. ilus
Article in French | AIM, AIM | ID: biblio-1262797

ABSTRACT

Introduction. La survenue d'un corps étranger (CE) est un motif fréquent de consultation en ORL. Le but de notre étude était d'analyser les données épidémiologiques, cliniques et thérapeutiques des sujets porteurs de corps étrangers à l'Hôpital National Ignace Deen (CHU de Conakry). Matériels et méthodes. Il s'agit d'une étude prospective de type descriptif, étalée de Janvier ­à décembre 2015 (un an), portant sur tous les cas de corps étrangers des conduits auditifs externes et des voies aérodigestives supérieures colligés au service d'ORL de l'Hôpital National Ignace Deen. Nos variables d'intérêt étaient les données épidémiologiques, cliniques et thérapeutiques Résultats. Durant la période d'étude, 192 cas de CE ont été colligés parmi les 2177 consultations, soit une fréquence de 8,82%. L'âge des patients variait de 2 à 60 ans avec une prédominance des enfants de moins de 10 ans (42,71%). Le sex-ratio homme/femme était de deux. Le délai moyen d'admission était de 48h avec des extrêmes de 0 à 30 jours. Les circonstances de survenue des CE étaient représentées par les jeux dans 54,17 % des cas. Le conduit auditif externe était la localisation la plus fréquente (64,58%). La nature des CE était inorganique dans 76,56 % des cas et organique dans 23,44 % des cas. Tous les CE ont été extraits par la voie d'introduction, le plus souvent au fauteuil de consultation (90,10 % des cas). L'évolution a été favorable chez tous les patients. Conclusion. Les corps étrangers ORL constituent un motif fréquent de consultation et affectent surtout les enfants de sexe masculin.ils sont habituellement inorganiques et affectent surtout le conduit auditif externe. L'évolution est en règle favorable après extraction


Subject(s)
Ear Canal , Foreign Bodies/diagnosis , Foreign Bodies/epidemiology , Foreign Bodies/therapy , Guinea , Otolaryngology
SELECTION OF CITATIONS
SEARCH DETAIL