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2.
Laryngoscope ; 125(10): 2371-5, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25891786

RESUMO

OBJECTIVE: To evaluate vestibular function before and after cochlear implantation (CI) STUDY DESIGN: A prospective descriptive study. MATERIAL AND METHODS: Thirty consecutive patients with profound sensorineural hearing loss undergoing CI. Objective assessment of vestibular function was performed with the caloric test and video head impulse test (vHIT) in patients before and after CI. Dizziness Handicap Inventory (DHI) was used for subjective assessment before and after CI. RESULTS: Thirty patients received CI with 21 by round window approach and nine by anteroinferior cochleostomy. Vestibular results were categorized into four groups: no changes (20 patients), changes in the caloric test and vHIT (3 patients, all with DHI changes; P = 0.0001), changes in vHIT gain but not in caloric test (3 patients, all with DHI changes; P = 0.005), no changes in the caloric test and vHIT gain but only saccades appear (4 patients, all with DHI changes; P = 0.011). CONCLUSIONS: Although CI is a safe surgery with few major complications, it is a procedure that can produce dizziness. The vHIT reveals that 30% of patients demonstrate postoperative change in vestibular function. Therefore, when examining a CI patient with postoperative symptoms of dizziness, results of the vHIT test and gain as well as the presence of saccades, along with an increase DHI score, are parameters to consider in their evaluation. LEVEL OF EVIDENCE: 4.


Assuntos
Perda Auditiva Neurossensorial/reabilitação , Vestíbulo do Labirinto/fisiopatologia , Implante Coclear , Humanos , Estudos Prospectivos , Resultado do Tratamento , Testes de Função Vestibular
4.
Cochlear Implants Int ; 15(5): 272-5, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24679133

RESUMO

OBJECTIVE AND IMPORTANCE: The objective was to report the effectiveness of salvage treatment in soft tissue infection around cochlear implants with an absorbable gentamicin collagen sheet and a periosteum and skin rotation flaps. CLINICAL PRESENTATION: Three patients with cochlear implant and persistent surrounding soft tissue infection are included. All of them underwent antibiotic treatment prior to surgery without any response. INTERVENTION: In this study preoperative and postoperative audiograms were practiced. Surgical excision of infectious skin and a periosteum and skin rotation flaps were performed. The cochlear implant was refixed in the temporal bone and a gentamicin-impregnated collagen sheet was located covering the cochlear implant. CONCLUSION: headings In all patients with soft tissue infection around the cochlear implant, infection was completely resolved. It was not necessary to remove the device in any case. The use of an absorbable gentamicin-impregnated collagen sheet is not described for the management of soft tissue complications in pediatric cochlear implant patients. The local application of high concentrations of antibiotic administered by this sheet may be effective against resistant bacteria and, in conjunction with surgery, may resolve this type of complications.


Assuntos
Antibacterianos/administração & dosagem , Implante Coclear/efeitos adversos , Implantes Cocleares , Gentamicinas/administração & dosagem , Infecções dos Tecidos Moles/tratamento farmacológico , Infecção da Ferida Cirúrgica/tratamento farmacológico , Pré-Escolar , Colágeno , Feminino , Infecções por Haemophilus/diagnóstico , Infecções por Haemophilus/tratamento farmacológico , Infecções por Haemophilus/etiologia , Haemophilus influenzae , Humanos , Lactente , Masculino , Staphylococcus aureus Resistente à Meticilina , Infecções dos Tecidos Moles/diagnóstico , Infecções dos Tecidos Moles/etiologia , Infecções Estafilocócicas/diagnóstico , Infecções Estafilocócicas/tratamento farmacológico , Infecções Estafilocócicas/etiologia , Retalhos Cirúrgicos , Infecção da Ferida Cirúrgica/diagnóstico , Infecção da Ferida Cirúrgica/etiologia
7.
Acta Otorrinolaringol Esp ; 60 Suppl 1: 9-17, 2009 Feb.
Artigo em Espanhol | MEDLINE | ID: mdl-19245770

RESUMO

Paragangliomas are tumors that arise in the extraadrenal paraganglia and result from migration of neural crest cells during embryonic development. Based on their anatomical distribution, innervation and microscopic structure, these tumors can be classified into interrelated families: branchiomeric paraganglia (related to the branchial clefts and arches), intravagal, aortic-sympathetic and visceral-autonomic. Head and neck paragangliomas belong mainly to the first two of these families. The present article is divided into two parts. The first part reviews the embryological origin of these tumors. Special emphasis is placed on the process of neurulation or neural tube formation, neurosegmentation (with a summary of the mechanisms involved in the initial segmentation of the neural tube and of the hindbrain and spinal medulla), and the development of the sensory placodes and secondary inductions in the cranial region. Subsequently, the neural crest is analyzed, with special attention paid to the cranial neural crest. The embryonogenesis of paragangliomas is also described. The second part describes the topographical distribution of head and neck paragangliomas according to their localization: jugulotympanic, orbit, intercarotid, subclavian and laryngeal. The embryonogenesis and most important anatomical characteristics are described for each type.


Assuntos
Neoplasias de Cabeça e Pescoço/embriologia , Neoplasias de Cabeça e Pescoço/patologia , Paraganglioma/embriologia , Paraganglioma/patologia , Neoplasias de Cabeça e Pescoço/irrigação sanguínea , Humanos , Paraganglioma/irrigação sanguínea
8.
Acta otorrinolaringol. esp ; 60(supl.1): 9-17, feb. 2009. ilus
Artigo em Espanhol | IBECS | ID: ibc-59844

RESUMO

Los paragangliomas son neoplasmas procedentes de paraganglios extra adrenales que derivan de la migración de las células de la cresta neural durante el desarrollo embrionario. Según su distribución anatómica, su inervación y su estructura microscópica, pueden ser agrupados en familias interrelacionadas, diferenciándose paraganglios branquioméricos (relacionados con los arcos y hendiduras branquiales),intravagales, aórtico-simpáticos y autonómicos-viscerales. Los paragangliomas cervicocefálicos pertenecen principalmente a las 2 primeras de estas familias. El presente capítulo está divido en 2 partes. En la primera parte se hace una revisión sobre su origen embriológico, poniendo especial énfasis en el proceso de neurulación o formación del tubo neural; la neurosegmentación, resumiendo los mecanismos implicados en la segmentación inicial del tubo neural y la segmentación del rombencéfalo y la médula espinal, y la evolución de las placodas sensitivas e inducciones secundarias en la región craneal. Posteriormente, se analiza la cresta neural, con especial atención a la cresta neural craneal, para terminar con la embriogénesis de los paragangliomas. En la segunda parte se desarrolla la distribución topográfica de los paragangliomas cervicocefálicos, diferenciándolos conforme a su localización: yúgulo-timpánicos, orbitarios, intercarotídeos, subclavios y laríngeos. Cada tipo se asocia con su embriogénesis y con los detalles anatómicos más relevantes (AU)


Paragangliomas are tumors that arise in the extra adrenalparaganglia and result from migration of neural crest cells during embryonic development. Based on their anatomical distribution, innervation and microscopic structure, these tumors can be classified into interrelated families: branchiomeric paraganglia (related to the branchial clefts and arches), intravagal, aortic-sympathetic and visceral-autonomic. Head and neck paragangliomas belong mainly to the first two of these families. The present article is divided into two parts. The first part reviews the embryological origin of these tumors. Special emphasis is placed on the process of neurulation or neuraltube formation, neurosegmentation (with a summary of the mechanisms involved in the initial segmentation of the neuraltube and of the hindbrain and spinal medulla), and the development of the sensory placodes and secondary inductions in the cranial region. Subsequently, the neural crest is analyzed, with special attention paid to the cranial neuralcrest. The embryonogenesis of paragangliomas is also described. The second part describes the topographical distribution of head and neck paragangliomas according to their localization: jugulotympanic, orbit, intercarotid, subclavian and laryngeal. The embryonogenesis and most important anatomical characteristics are described for each type (AU)


Assuntos
Humanos , Neoplasias de Cabeça e Pescoço/embriologia , Neoplasias de Cabeça e Pescoço/patologia , Paraganglioma/embriologia , Paraganglioma/patologia , Neoplasias de Cabeça e Pescoço/irrigação sanguínea , Paraganglioma/irrigação sanguínea
11.
O.R.L.-DIPS ; 28(2): 92-95, mar. 2001.
Artigo em Es | IBECS | ID: ibc-7868

RESUMO

La sinusitis esfenoidal aguda aislada es una enfermedad inflamatoria poco común pero potencialmente peligrosa.Su diagnóstico se realiza raramente de forma inicial debido a la poca especificidad de su sintomatología, sin embargo, dada la gravedad de sus complicaciones, debe ser tenida en cuenta y considerarse como una urgencia terapéutica.El síntoma de presentación más común es una cefalea inespecífica, seguido de las alteraciones visuales y las parálisis de pares craneales. La TAC es actualmente el examen radiológico de elección. Su tratamiento es médico, asociado eventualmente a un drenaje quirúrgico por vía endoscópica.Se presenta un caso de sinusitis esfenoidal aguda aislada diagnosticada y tratada en nuestro servicio y realizamos una revisión de la bibliografía (AU)


Assuntos
Adulto , Feminino , Humanos , Sinusite Esfenoidal/cirurgia , Sinusite Esfenoidal/complicações , Sinusite Esfenoidal/diagnóstico , Sinusite Esfenoidal/etiologia , Paralisia Cerebral/complicações , Paralisia Cerebral/diagnóstico , Paralisia Cerebral/cirurgia , Paralisia Cerebral/etiologia , Paralisia/complicações , Paralisia/diagnóstico , Paralisia/etiologia , Paralisia/cirurgia , Crânio/patologia , Crânio , Transtornos da Visão/complicações , Transtornos da Visão/diagnóstico , Transtornos da Visão/etiologia , Conchas Nasais/patologia , Doenças Nasais/cirurgia , Doenças Nasais/complicações , Doenças Nasais/diagnóstico , Doenças Nasais/etiologia , Streptococcus pneumoniae/isolamento & purificação , Oximetazolina/uso terapêutico , Oximetazolina/metabolismo , Diplopia/complicações , Diplopia/diagnóstico , Diplopia/patologia , Tomografia Computadorizada por Raios X/métodos , Endoscopia/métodos , Cefaleia/complicações , Cefaleia/diagnóstico , Cefaleia/etiologia , Doenças do Nervo Oculomotor/complicações , Doenças do Nervo Oculomotor/diagnóstico , Doenças do Nervo Oculomotor/etiologia , Antibacterianos/uso terapêutico , Seio Esfenoidal/patologia , Sucção/métodos , Drenagem/métodos , Sinusite/classificação , Cegueira/complicações , Cegueira/diagnóstico , Cegueira/etiologia
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