Navegando por Palavras-chave "temporal bone"
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- ItemAcesso aberto (Open Access)Anatomia microscópica do canal carótico e suas relações com a cóclea e a cavidade timpânica(ABORL-CCF Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial, 2005-08-01) Penido, Norma de Oliveira [UNIFESP]; Borin, Andrei [UNIFESP]; Fukuda, Yotaka [UNIFESP]; Lion, Cristina Navarro Santos [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)The knowledge of the relations between the noble and vital structures of temporal bone is still a great challenge for the otologic surgeon. The microscopic anatomic studies of the temporal bone are one of the greatest help to prevent lesions during surgical intervention. AIM: To study the anatomic correlations between the carotid canal and the cochlea, and the occurrence of dehiscence of the carotid canal in the middle ear tympanic cavity. MANTERIAL AND METHODS: Microscopic study of 122 human temporal bones. RESULTS: The average distance between the carotid canal and the cochlea were: the shortest distance, 1.05mm; basal turn, 2.04mm; middle turn, 2.32mm; and apical turn, 5.70mm. The occurrence of dehiscence of the carotid canal inside the tympanic cavity was 35.2%. CONCLUSION: The small distances between the cochlea and carotid canal, and the high incidence of dehiscence in the tympanic cavity remind us that anatomical knowledge of the temporal bone is required for the best qualification of otologists.
- ItemAcesso aberto (Open Access)Complicações intratemporais das otites médias(Associação Brasileira de Otorrinolaringologia e Cirurgia Cervicofacial, 2013-04-01) Maranhão, André Souza de Albuquerque [UNIFESP]; Andrade, José Santos Cruz de [UNIFESP]; Godofredo, Valéria Romero [UNIFESP]; Matos, Rafaella Caruso [UNIFESP]; Penido, Norma de Oliveira [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Otitis media (OM) is considered a potentially severe disease due to the risk of complications. OBJECTIVE: To establish the annual incidence of intratemporal complications (ITC) resulting from OM and to prospectively assess patients for epidemiological and clinical factors. METHOD: This prospective cohort study included patients admitted during one year at a university hospital diagnosed with intratemporal complications of OM. Patients were analyzed for age, gender, type of intratemporal complication, treatment, and clinical outcome. The overall incidence of complications and the specific incidence rates of each type of complication were determined. RESULTS: 1,816 patients were diagnosed with OM; 592 (33%) had chronic OM; 1224 (67%) had acute OM. Fifteen patients were diagnosed with OM ITC, adding up to an annual incidence of 0.8%. Nineteen diagnoses of ITC were made in 15 patients. Seven (36.8%) patients were diagnosed with labyrinthine fistula, five (26.3%) with mastoiditis, four (21.1%) with peripheral facial palsy, and three (15.8%) with labyrinthitis. CONCLUSION: The incidence of intratemporal complications remains significant when compared to the rates seen in developed countries. Chronic cholesteatomatous otitis media is the most frequent etiology of intratemporal complications. Labyrinthine fistula is the most common intratemporal complication.
- ItemSomente MetadadadosDevelopmental study of the round window region(Karger, 1997-01-01) Bonaldi, Lais Vieira [UNIFESP]; Angelis, Marco Antonio de [UNIFESP]; Smith, Ricardo Luiz [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)A silicone impression method to study the anatomy of the round window region was used in 102 temporal bones belonging to individuals aged from 4 months of fetal life to 3-year-old children as well as adults. A total of 2,142 measurements of the round window, oval window and round window fossula was made in the molds. The data demonstrate that the round window shows a diameter from 1.21 mm (average for the short axis) to 1.74 mm (average for the long axis) and the circular shape was present in 55% of the adult temporal bones and in 18.18% of the fetal and infantile ones, The adult dimensions of the measured structures are reached during fetal development.
- ItemAcesso aberto (Open Access)Epidemiology of Intratemporal Complications of Otitis Media(Fundação Otorrinolaringologia, 2014-04-01) Maranhão, André Souza de Albuquerque [UNIFESP]; Andrade, José Santos Cruz de [UNIFESP]; Godofredo, Valéria [UNIFESP]; Matos, Rafaela [UNIFESP]; Penido, Norma de Oliveira [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)IntroductionDespite the advent of antibiotics and immunizations in the last century, complications of otitis media remain quite frequent, have high morbidity and mortality rates, and pose a challenge to the otorhinolaryngologist. ObjectiveTo establish the annual incidence of intratemporal complications of otitis media and prospectively evaluate patients via an analysis of epidemiologic and clinical aspects. MethodProspective, observational study. Between February 2010 and January 2011, patients admitted to a tertiary care, university-based otology practice with diagnosis of otitis media and an associated intratemporal complication (ITC) were included in the study. The following data were evaluated: age, sex, type of ITC, treatment, imaging tests findings, type and degree of hearing loss, and clinical outcome. The overall incidence of all complications and of each complication individually was determined. ResultA total of 1,816 patients were diagnosed with otitis media. For 592 (33%) individuals, the diagnosis was chronic otitis media; for 1,224 (67%), the diagnosis was acute otitis media. ITCs of otitis media were diagnosed in 15 patients; thus, the annual incidence of intratemporal complications was 0.8%. We identified 19 ITC diagnoses in 15 patients (3 patients had more than one diagnosis). Labyrinthine fistulae were diagnosed in 7 (36.8%) individuals, mastoiditis in 5 (26.3%), facial palsy in 4 (21.1%), and labyrinthitis in 3 (15.8%). ConclusionThe incidence of intratemporal complications in Brazil remains significant when compared with developed countries. Chronic otitis media with cholesteatoma is the most frequent etiology of intratemporal complications. Labyrinthine fistula is the most common intratemporal complication.
- ItemAcesso aberto (Open Access)Estudo anatômico do osso temporal de um primata não-humano (Callithrix sp)(ABORL-CCF Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial, 2008-06-01) Borin, Andrei [UNIFESP]; Covolan, Luciene [UNIFESP]; Mello, Luiz Eugenio Araujo de Moraes [UNIFESP]; Okada, Daniel Mochida [UNIFESP]; Cruz, Oswaldo Laércio Mendonça [UNIFESP]; Testa, Jose Ricardo Gurgel [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Universidade Federal São Paulo Departamento OtorrinolaringologiaThe search for experimental (animal) models is essential to the development of clinical studies. AIM: To demonstrate, by means of micro dissection techniques, the anatomical structures of temporal bones from the primate Callithrix sp. STUDY DESIGN: Experimental. METHODS: Dissection of temporal bone structures of Callithrix sp and photographic documentation. RESULTS: We identified the main constituents of the temporal bone (external, medium and inner ear and facial nerve). CONCLUSION: The non-human primate Callithrix sp. is an adequate experimental model for the studies of temporal bone structures given its close anatomical similarities to that found in humans.
- ItemAcesso aberto (Open Access)Estudo comparativo entre achados radiológicos e cirúrgicos na otite média crônica(Fundação Otorrinolaringologia, 2011-03-01) Prata, Anelise Abrahao Salge; Antunes, Marcos Luiz [UNIFESP]; Abreu, Carlos Eduardo Cesario De [UNIFESP]; Frazatto, Ricardo [UNIFESP]; Lima, Bruno Thieme [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); faculdade de medicina do ABC; Hospital Estadual de DiademaINTRODUCTION: The chronic otitis media (COM) is a prevalent disease and the most frequent cause of indication to mastoidectomy. Many studies have evaluated the use of tomography (CT) of temporal bones for preoperative evaluation of COM and its indication in the preoperative approach is still controversial nowadays. OBJECTIVE: To evaluate the sensitivity of the clinical and radiological findings of COM according to the intraoperative surgical results and histopathological findings. METHOD: Transversal retrospective study through collection of record data of patients with COM submitted to mastoidectomy in the period from 2007 through 2008 in our service. RESULTS: From a total of 82 ears, 40.24% had cholesteatoma. The CT presented 72.73% of sensitivity in the identification of cholesteatoma, 56.67% in the identification of changes to the ossicular chain and 100% in that of erosion of the lateral semicircular canal. CONCLUSION: The clinical and radiological findings showed a high level sensitivity with intraoperative findings as regards to the presence of cholesteatoma, large changes of the ossicular chain and erosion of the lateral semicircular canal. For minor changes to the ossicular chain, the facial nerve canal and the tympanic tegmen they described low sensitivity.
- ItemSomente MetadadadosInternal auditory canal: Pre- and postnatal growth(B C Decker Inc, 2004-08-01) Bonaldi, Lais Vieira [UNIFESP]; Lago, Aline do [UNIFESP]; Crema, Luciana C. [UNIFESP]; Fukuda, Yotaka [UNIFESP]; Smith, Ricardo Luiz [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Objective: the purpose of this study was to describe the size and shape of the internal auditory canal (IAC) during development.Study Design: the study was conducted in 98 dried temporal bones from 7-month-old fetuses to adults. Silicone mould casts of the IAC were used.Methods: the length of the IAC was measured on the moulds corresponding four walls as the diameter on the fundus, middle portion, and porus.Results: Although size and shape vary considerably among individuals, the data showed no significant differences between the right and left sides of the same individual. the values of the wall length and porus diameter increase as a function of age, especially for the upper wall and horizontal diameter. Both middle portion diameters suffer variations at different ages, increasing and decreasing until reaching the final shape. the diameter of the fundus, near the inner ear, remains stable.Conclusions: Our results showed that during development, the shape of the IAC adapts to cranial growth, with those of adults and fetuses having a similar shape but different dimensions, which was quite evident near the porus.
- ItemSomente MetadadadosMorphological analysis of the vestibular aqueduct by computerized tomography images(Elsevier B.V., 2007-01-01) Marques, Sergio Ricardo; Smith, Ricardo Luiz; Isotani, Sadao; Alonso, Luis Garcia; Anadao, Carlos Augusto; Prates, Jose Carlos; Lederman, Henrique Manoel; Universidade Federal de São Paulo (UNIFESP); Universidade de São Paulo (USP)Objective: in the last two decades, advances in the computerized tomography (CT) field revise the internal and medium ear evaluation. Therefore, the aim of this study is to analyze the morphology and morphometric aspects of the vestibular aqueduct on the basis of computerized tomography images (CTI).Material and method: Computerized tomography images of vestibular aqueducts were acquired from patients (n = 110) with an age range of 1-92 years. Thereafter, from the vestibular aqueducts images a morphometric analysis was performed. Through a computerized image processing system, the vestibular aqueduct measurements comprised of its area, external opening, length and the distance from the vestibular aqueduct to the internal acoustic meatus.Results: the morphology of the vestibular aqueduct may be funnel-shaped, filiform or tubular and the respective proportions were found to be at 44%, 33% and 22% in children and 21.7%, 53.3% and 25% in adults. the morphometric data showed to be of 4.86 mm(2) of area, 2.24 mm of the external opening, 4.73 mm of length and 11.88 mm of the distance from the vestibular aqueduct to the internal acoustic meatus, in children, and in adults it was of 4.93 mm(2), 2.09 mm, 4.44 mm, and 11.35 mm, respectively.Conclusions: Computerized tomography showed that the vestibular aqueduct presents high morphological variability. the morphometric analysis showed that the differences found between groups of children and adults or between groups of both genders were not statistically significant. (C) 2006 Elsevier Ireland Ltd. All rights reserved.
- ItemAcesso aberto (Open Access)Osteodistrofias do Osso Temporal: Revisão dos Conceitos Atuais, Manifestações Clínicas e Opções Terapêuticas(ABORL-CCF Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial, 2002-05-13) Cruz, Oswaldo Laércio Mendonça [UNIFESP]; Pessoto, Jurandy [UNIFESP]; Pezato, Rogério [UNIFESP]; Alvarenga, Eliézia Helena de Lima [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Osteodysplasia of the temporal bone included a significant amount of osseous diseases sharing bone matrix structural and composition damage. Otospongiosis is, by far, the most frequent form of this involvement in the temporal bone. Nevertheless, fibrous dysplasia and osteogenesis imperfecta are not rare and deserve attention. In this article, the authors present a discussion about the recent concepts of those less frequent forms of osteodysplasia of temporal bone, its options of treatment, illustrated with three clinical cases.
- ItemAcesso aberto (Open Access)Paraganglioma timpânico: a propósito de dois casos(ABORL-CCF Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial, 2007-02-01) Tiago, Romualdo Suzano Louzeiro [UNIFESP]; Gil, Fábio Marangoni; Ribeiro, Juparethan Trento; Anjos, Patricya Santos Figueiredo Dos; Sens, Patrícia Maria; Valle, Lupércio Oliveira Do; Universidade Federal de São Paulo (UNIFESP); Hospital do Servidor Público Estadual de São Paulo Serviços de Otorrinolaringologia; Hospital do Servidor Público Municipal de São Paulo Serviços de Otorrinolaringologia; Santa Casa de São Paulo Faculdade de Ciências Médicas programa de Pós-graduação em Otorrinolaringologia; HSPM Serviço de Otorrinolaringologia; PUC
- ItemAcesso aberto (Open Access)Tumor neuroectodérmico primitivo periférico: caso raro de paralisia facial periférica(ABORL-CCF Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial, 2007-02-01) Tiago, Romualdo Suzano Louzeiro [UNIFESP]; Pio, Marcio Ricardo Barros; Silva, Marcelo Nery; Valle, Lupércio Oliveira Do; Universidade Federal de São Paulo (UNIFESP); Hospital do Servidor Público Estadual de São Paulo Serviços de Otorrinolaringologia; Hospital do Servidor Público Municipal de São Paulo Serviços de Otorrinolaringologia; Hospital do Servidor Público Municipal de São Paulo Serviço de Otorrinolaringologia; Hospital do Servidor Público Municipal de São Paulo Serviço de Neurocirurgia; PUC-SP