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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

CONTRIBUIÇÃO DO PEATE NA AVALIAÇÃO DE PACIENTES COM QUEIXAS VESTIBULOCOCLEARES / RESULTS OF ELECTROPHYSIOLOGY IN DIZZY PATIENTS

Munaro, Gisiane 17 July 2009 (has links)
The otoneurological evaluation consists of exams to investigate auditory and vestibular pathologies, among them, the auditory brainstem response and vectonystagmography are tests commonly used in clinical practice. The evoked potentials are useful in cases of peripheral neural involvement and/or brainstem diseases, rarely asked for evaluating patients with vertigo complaints only, dizziness or balance disorders. Because of this, its applicability in these cases remains still unknown. The purpose of this study is to describe the otoneurologic results in patients with vestibular complaints, normal-hearing and with hearing loss, comparing their results in auditory brainstem response to the control-group. For this, 66 dizzy patients were evaluated and then were grouped: group A consisted of 31 normal hearing patients, mean age 40 years old, group B with 25 hearing loss patients, mean age 58 years, control group of ten normal hearing patients, mean age 26 years, without any vestibular or auditory complaints. These people were evaluated through audiometry, vectonystagmography and electrophysiology exams at Centro Clínico Mãe de Deus Center, Porto Alegre city. The corresponding data were grouped according to symptomatology and the exams results. The statistical analysis ANOVA and F significance test, the electrophysiological results were compared to the control group. The patients of groups A and B showed an increased of absolute latency of waves I, III e V statistically significant when compared to control group, although the latency values were within the normal patterns. The absence of wave I occurred in both groups of normal hearing and with hearing loss. In two patients of the group B the vectonystagmography showed central vestibular disease but the electrophysiological measures were normal in these cases. Conclusion: patients with vestibulochoclear complaints showed different electrophysiologyc results when compared to the control-group. / A avaliação otoneurológica consiste em exames para investigação de patologias auditivas e vestibulares, entre eles o potencial evocado de tronco encefálico e a vectoeletronistagmografia. Os potenciais evocados são utilizados em casos de suspeita de acometimento neural periférico e/ou de tronco encefálico, raramente indicado para sujeitos com queixas isoladas de vertigem, tontura ou desequilíbrio, de forma que sua contribuição na avaliação desses pacientes é pouco conhecida. Este estudo tem como objetivo descrever os achados da avaliação otoneurológica em pacientes com queixas vestibulococleares, normo-ouvintes e com perda auditiva, comparando os resultados do PEATE ao grupo-controle. Foram avaliados 66 pacientes e formaram-se os grupos A com 31 pacientes sintomáticos normo-ouvintes com média de idade de 40 anos, o grupo B com 25 pacientes sintomáticos e com perda auditiva, média de 58 anos de idade, e o grupo-controle, média de 26 anos, constituído por dez pacientes normo-ouvintes sem queixas vestibulares ou auditivas. Exames auditivos, vestibulares e eletrofisiológico foram realizados no Centro Clínico Mãe de Deus Center, em Porto Alegre, cujos dados foram agrupados conforme a sintomatologia e os resultados dos exames. Pela análise estatística ANOVA e teste F verificou-se a significância dos resultados eletrofisiológicos confrontados com o grupo-controle. Os pacientes dos grupos A e B apresentaram aumento em monobloco das latências absolutas das ondas I, III e V estatisticamente significativa, quando comparados ao grupo-controle, embora com valores dentro da normalidade. A ausência da onda I ocorreu em ambos os grupos, normo-ouvintes e com perda auditiva. Nos dois casos do grupo B em que a vectoeletronistagmografia acusou alteração vestibular central não foram verificadas alterações nos parâmetros eletrofisiológicos. Conclusão: os pacientes com sintomas vestibulares diferiram do grupo-controle quanto aos resultados eletrofisiológicos.
42

Medical Students' Self-Perceived Preparedness in Managing Patients with BPPV

Hicks, Courtney, Fagelson, Marc, Riska, Kristal, Schairer, Kim 05 April 2018 (has links)
Benign paroxysmal positional vertigo (BPPV) is a specific type of short-duration vertigo that is provoked by changes in head position and usually lasts less than one minute. It is a common vestibular pathology that can have significant effects on patient safety, quality of life, and medical costs. Therefore, it is crucial that medical students are educated and trained to facilitate and coordinate care of patients who may have undiagnosed BPPV. Because there is evidence to suggest that physicians—specifically primary care physicians—may not be properly equipped in their education to manage patients with BPPV, the purpose of this study was to investigate medical students’ evaluations of their preparedness to provide evidence-based care in the diagnosis and treatment of BPPV. An anonymous survey was administered via email to medical students in their fourth and final year of medical school at East Tennessee State University’s Quillen College of Medicine. This survey includes statements about the evidence-based Clinical Practice Guideline on BPPV provided by the American Academy of Otolaryngology. Respondents rated the degree to which they agreed or disagreed with how prepared they felt to address each item using a 5-point response scale from “strongly disagree” to “strongly agree.” Of the 70 students in the current fourth year class, 41 (59%) completed the survey. Students felt prepared for some aspects of diagnosing and treating BPPV, especially with regard to their general knowledge of BPPV, its impact on patients’ lives, and the options available to manage it. They felt less prepared to know when or if it is appropriate to recommend additional testing, imaging, or medication. They did not feel confident in their ability to perform the maneuvers to diagnose and treat BPPV. Overall, these results suggest medical students have a good foundation in their knowledge of BPPV. These results also propose topics to support more specialized training during their residencies to build upon the foundational knowledge obtained during their didactic training and optimize diagnosis and management of BPPV.
43

Strach / Fear

Pechánková, Petra January 2013 (has links)
Scaffolding and videoprojection on the gallery floor act like challenge to watch videos from the right focus – from the top of the safoolding. Instalation should mostly force the audience to get in touch with situation, which is unbearable for someone, who is scared from the heights – acrophobic.
44

Reimaging Desire: Queer Time, Liminal Space, and Narrative Anxiety

Mitchell, Aidan 01 January 2015 (has links) (PDF)
Media shapes and supports certain ideas about how we view ourselves and others. The narratives that we consume train us to desire a particular formula of what critic Lauren Berlant calls "the good life": growing up, becoming a man or a woman, getting married, having children, and retiring. People who fail to fit into these narratives are often punished and excluded from society. However, queer theorist Jack Halberstam asks us to reconsider failure as a means of resistance. The texts that I examine fail to conform to narrative expectations or to fit formulae that are easily consumable or defined. They present queer characters and relationships that exceed social norms and generic conventions. These characters and relationships encourage us to reconsider the models of desire given to us, and to embrace a more nebulous state of anxiety found in liminal space. In Chapter 1, I discuss Argentine-Spanish-French film XXY (2007), which follows the story of Alex, an intersex teen who refuses to fit within the binary of male or female. In Chapter 2, I argue that Hitchcock's Vertigo (1958) lays the groundwork for the visual representation of anxiety and desire in the Japanese manga Aku no Hana (Flowers of Evil ), which explores non-monogamous relationships structured around sadistic voyeurism. In the conclusion I turn briefly to children's cartoons Steven Universe and Adventure Time, in which failure has been reimagined as queer utopia. By focusing on media that resist heteronormative conventions we can start to reimagine models for more empathetic and compassionate communities.
45

« Vertigo's British Invasion » : la revitalisation par les scénaristes britanniques des comic books grand public aux Etats-Unis (1983-2013) / “Vertigo's British Invasion” : British scriptwriters and the revitalisation of US mainstream comic books (1983-2013)

Licari-Guillaume, Isabelle 08 December 2017 (has links)
Cette thèse porte sur la trajectoire éditoriale et artistique de la collection Vertigo créée en 1993 par DC Comics, maison d’édition états-unienne spécialisée dans la bande dessinée. Je me propose d’aborder Vertigo à travers l'apport des scénaristes britanniques employés par DC Comics depuis le milieu des années quatre-vingt. Leur rôle est en effet considérable, tant au moment de la fondation de Vertigo par la rédactrice Karen Berger que dans le succès ultérieur dont jouit la collection. La genèse de Vertigo met en lumière l’importance du phénomène appelé l’ « Invasion britannique », c’est-à-dire l’arrivée sur le marché états-unien de nombreux créateurs qui sont nés et travaillent à l’étranger pour DC Comics. Cette « invasion » révélera au public américain des scénaristes de tout premier plan tels Alan Moore, Grant Morrison ou Neil Gaiman, dont la série The Sandman est considérée comme un jalon majeur de l’histoire du média. La critique existante au sujet de Vertigo en général tend d’ailleurs à se focaliser sur la portion du corpus produit par les Britanniques, mais sans nécessairement prendre acte de cette spécificité culturelle. Le travail à mener est donc double ; d'une part, il s'agira de retracer une histoire du label en tant qu'instance productrice d'une culture médiatique particulière, qui s'inscrit dans un contexte socio-historique et repose sur les pratiques et les représentations de l'ensemble des acteurs (producteurs et consommateurs au sens large), eux-mêmes nourris d'une tradition qui préexiste à l'apparition de Vertigo. Il sera dès lors possible de prendre appui sur cette connaissance contextuelle pour interroger la poétique du label, et ainsi identifier les spécificités d’une « école » britannique au sein de cette industrie culturelle. / This thesis deals with the editorial and aesthetic history of the Vertigo imprint, which was created in 1993 by DC Comics, a US-American comics publisher. I shall consider in particular the contribution of British scriptwriters employed by DC and then by Vertigo from the 1980s onwards. Theise creators played a tremendous role, both at the time of Vertigo's founding by editor Karen Berger and at a later date, as the imprint gathered widespread recognition. The genesis of the Vertigo imprint sheds light on the so-called “British Invasion”, that is to say the appearance within the American industry of several UK-based creators working for DC Comics. Spearheaded by Alan Moore, the “invasion” brought to the fore many of the most important scriptwriters of years to come, such as Grant Morrison and Neil Gaiman, whose Sandman series has been described as a major landmark in the recognition of the medium. Existing criticism regarding Vertigo tends to focus on the body of work produced by British authors, without necessarily discussing their national specificity. My goal is therefore double; on the one hand, I intend to write a history of the label as the producer of a specific media culture that belongs to a given socio-historical context and is grounded in the practices and representations of the field's actors (producers and consumers in a broad sense). On the other hand, the awareness of the context in which the books are produced shall allow me to interrogate the imprint's poetics, thus identifying the specificity of a “British school of writing” within the comics mainstream industry.
46

Film music : the synthesis of two art forms - a case study of themes and characters in Alfred Hitchcock's and Bernard Herrmann's Vertigo

Theunissen, Justin Robin 04 1900 (has links)
Thesis (MMus)--Stellenbosch University, 2014. / ENGLISH ABSTRACT: This thesis investigates the impact that a musical score can have on the visual component as well as the final product of a film. This is achieved by the use of a systematic analytical approach that covers the most important aspects of the visual and musical elements within Vertigo. The film is regarded as one of cinema’s greatest examples of excellence. The many levels of meaning, inspired use of cinematographic techniques, meticulously crafted narrative and dynamic score combine to create a film unlike any other. The analysis of Vertigo is achieved by selecting specific scenes that contain important visual and musical elements essential to the narrative. The visual and musical aspects of each scene are analysed separately before the relationship between them is studied. Following this, the results of the analysis are summarised within the larger context of the narrative and conclusions are drawn regarding the music’s influence on the visual aspects of the film as well as its role in the ultimate narrative success of Vertigo. / AFRIKAANSE OPSOMMING: Hierdie verhandeling kwantifiseer die impak wat ‘n partituur kan uitoefen op die visuele aspekte en eindproduk van ‘n film. Dit word bereik deur die gebruik van ‘n sistematiese analitiese benadering wat die hoofaspekte van die visuele en musikale elemente in Vertigo ondersoek. Vertigo word beskou as een van die filmkuns se beste voorbeelde van uitnemendheid. Die komplekse betekenisvlakke, die geïnspireerde gebruik vakinematografiese tegnieke, die uitmuntende storielyn en die dinamiese partituur kombineer om ‘n unieke film te skep. In die ontleding van spesiale tonele met visuele en musikale elemente wat ‘n noodsaaklike bydrae lewer tot die sukses van die storielyn, kan Vertigo analiseer word. Die visuele en musikale aspekte van elke toneel word eers individueel bestudeer voordat die verhouding tussen die elemente analiseer word. Daarna word die resultate saamgevat binne die raamwerk van die storielyn en kan daar tot ‘n gevolgtrekking gekom word oor musiek se invloed op die visuele aspekte van die film en die rol wat musiek gespeel het in die beslissende sukses van Vertigo.
47

Avaliação sequencial do equilíbrio pré e pós-implante coclear em pacientes com surdez pós-lingual / Sequential study of vestibular function pre- and post cochlear implantation in postlingual deafened patients

Abramides, Patricia Arena 10 September 2014 (has links)
INTRODUÇÃO: A literatura é discordante com relação à interferência do IC sobre o equilíbrio corporal. Sendo assim, resolvemos avaliar o equilíbrio corporal de pacientes surdos pós-linguais, submetidos a implante coclear unilateral. OBJETIVO: Observar o equilíbrio corporal pré e pós-implante coclear (IC) ao longo de 1 ano. CASUÍSTICA E METODOLOGIA: Estudo prospectivo observacional realizado com 24 pacientes adultos, surdos pós-linguais submetidos à avaliação vestibular antes e depois da cirurgia de implante coclear unilateral. A avaliação vestibular contou com um questionário sobre vertigem, prova calórica (PC), cadeira rotatória (CR) e posturografia dinâmica computadorizada (PDC) aplicados no pré-operatório, 60, 120, 180 dias e 1 ano após a cirurgia de IC. RESULTADOS: A tontura foi referida por 13 (54,2%) pacientes pré-IC, enquanto 11 (45.8%) não apresentaram a queixa. Ao final do estudo 11 sujeitos (84,6%) referiram melhora da tontura, em 1 (7,7%) permaneceu inalterada e em 1 (7,7%) piorou. Dos 24 pacientes apenas 5 indivíduos (20,8%) desenvolveram tontura no pós-operatório imediato com resolução completa após um mês. A prova calórica identificou 7 (29,2%) sujeitos normorreflexos, 8 (33,3%) com hiporreflexia ou arreflexia unilateral , 3 (12,5%) com hiporreflexia bilateral e 6 (25%) com arreflexia vestibular bilateral (AVB).Houve interferência do estímulo elétrico em ambas as orelhas e na evolução da recuperação postural após ativação do IC, que promoveu a melhora significativa dos índices da PDC ao longo de um ano de acompanhamento. Ao final do estudo, as médias numéricas das condições avaliadas pela PDC mostraram-se superiores nos indivíduos que apresentaram resposta à prova calórica em relação àqueles que possuíam AVB. CONCLUSÃO: Foi decisiva a presença ou não de resposta pós-calórica na evolução do equilíbrio corporal ao longo de 1 ano. A ausência de resposta pós-calórica na avaliação pré-operatória implicou em pior prognóstico na evolução do equilíbrio corporal. No entanto, o melhor desempenho postural dos sujeitos com AVB pode ser explicado pelo melhor aproveitamento da informação visual. É fundamental documentar a presença de função vestibular antes da cirurgia de IC, pois dela depende o prognóstico do individuo em relação às habilidades de aprendizado e recuperação postural ao longo do tempo / INTRODUCTION: There is no consensus in the literature with regard to the effects of cochlear implantation (CI) on vestibular function and balance in patients with deafness. Because of this fact we decided to assess vestibular function before and after unilateral cochlear implantation (CI) in patients with postlingual deafness. OBJECTIVE: To assess balance before and after cochlear implantation (CI) over the course of 1 year. PATIENTS AND METHODS: prospective, observational study sought to assess balance in 24 postlingually deaf adults undergoing vestibular evaluation before and after cochlear implantation (CI). Vestibular assessment consisting of a vertigo questionnaire, caloric tests (CT), rotary chair testing (RC), and computerized dynamic posturography (CDP) was performed preoperatively and at 60, 120, 180 days and 1 year after CI. RESULTS: Overall, 13 patients (54.2%) reported preoperative dizziness and 11 (45.8%) did not have the symptom pre-CI. At the end of the study dizziness ameliorated in 11 (84.6%), remained unchanged in 1 (7.7%) and worsened in 1 (7.7%). Only 5 of the 24 patients (20.8%) developed immediate postoperative dizziness, which resolved within a month. The caloric tests identified 7 (29.2%) patients with normal reflexes, 8 (33.3%) with unilateral areflexia or hyporeflexia, 3 (12.5%) with bilateral hyporeflexia, and 6 (25%) with bilateral vestibular loss (BVL). Electrical stimulation affected both ears and interfered with the progression of postural recovery after CI activation, which led to a significant improvement in CDP values over the course of 1 year of follow-up. At the end of the study, the mean values of the conditions assessed by CDP were higher in individuals who had responded to caloric tests than in individuals with BVL. The better postural performance of subjects with BVL may be due to better use of visual information. CONCLUSION: The presence or absence of CT response was a decisive determinant of balance outcomes over the year after surgery. The absence of post-caloric response in preoperative assessment resulted in a worse prognosis in the evolution of body balance. However, patients with BVL were able to use the visual information for postural stabilization with improvement in the Composite Score. It is essential that vestibular assessment findings be documented before CI surgery because a patient\'s prognosis in terms of learning skills and postural recovery over time depends on this information
48

Eletrofisiologia da audição em indivíduos com vestibulopatias periféricas pré e pós reabilitação vestibular / Electrophysiological evaluation of hearing in individuals with peripheral vestibular disorders before and after vestibular rehabilitation therapy

Nunes, Cristiane da Silva 12 September 2011 (has links)
INTRODUÇÃO: Os Potenciais Evocados Auditivos avaliam a atividade neuroelétrica da via auditiva desde o nervo auditivo até o córtex cerebral. A vectoeletronistagmografia permite analisar os canais semicirculares e/ou nervo vestibular inferior, verificando se existe comprometimento vestibular periférico ou central. A reabilitação vestibular é composta de exercícios físicos ativos e repetitivos de olhos, cabeça e corpo e/ou manobras específicas que visam diminuir a tontura e a instabilidade corporal, aumentar a estabilização no olhar, o controle postural e melhorar o bem-estar na realização das atividades do diaa- dia. Levando-se em conta a escassez de trabalhos na literatura que investiguem a via auditiva central em indivíduos com síndrome vestibular periférica e que sejam submetidos à reabilitação vestibular, torna-se importante conhecer o funcionamento do sistema auditivo central, desde o tronco encefálico até o córtex auditivo, em indivíduos com vestibulopatias periféricas. OBJETIVOS: caracterizar os potenciais evocados auditivos de curta, média e longa latências em indivíduos com vestibulopatias periféricas, bem como verificar a evolução destes potenciais e dos resultados obtidos no Dizziness Handicap Inventory (DHI) frente à reabilitação vestibular. MÉTODOS: Foram submetidos à avaliação eletrofisiológica da audição por meio dos potenciais evocados auditivos de tronco encefálico (PEATE), potencial evocado auditivo de média latência (PEAML) e potencial cognitivo (P300), bem como à aplicação do questionário DHI, antes e após reabilitação vestibular, 20 indivíduos com diagnóstico de Síndrome Vestibular Periférica Irritativa (SVPI) e 17 indivíduos com diagnóstico de Síndrome Vestibular Periférica Deficitária (SVPD), com idades entre 20 e 70 anos. RESULTADOS: Os resultados demonstraram que o grupo com SVPD apresentou maior porcentagem de resultados alterados no PEATE e PEAML. No que diz respeito aos tipos de alterações, pode-se observar no grupo com SVPD, alteração em tronco encefálico baixo no PEATE pré e pós RV; aumento das latências das ondas Na e Pa no PEAML pós RV, aumento da latência da onda Pa pré RV e efeito eletrodo para a amplitude Na- Pa pós RV. No grupo com SVPI, foi observada alteração do tipo outros no PEATE pré RV; aumento da latência da onda Pa no PEAML pré e pós RV e ambas as alterações para a amplitude Na-Pa pós RV. No estudo da evolução dos resultados pré e pós RV, pode-se observar maior porcentagem de resultados semelhantes para os três potenciais, em ambos os grupos avaliados. Na comparação do DHI pré e pós RV, ocorreram melhores resultados para os aspectos físico, emocional e funcional no grupo com SVPI e para os aspectos físico e emocional no grupo com SVPD. Tornam-se necessários mais estudos que avaliem a via auditiva central destes indivíduos para uma melhor caracterização dos achados eletrofisiológicos / INTRODUCTION: The auditory evoked potentials assess the neuroelectrical activity of the auditory pathway from the auditory nerve to the cerebral cortex. The vectoelectronystagmography analyzes the semicircular canals and/or inferior vestibular nerve, checking peripheral or central vestibular involvement. The vestibular rehabilitation therapy consists in active exercises and repetitive eyes exercises, head and body and/or specific maneuvers to reduce the dizziness and body instability, increase gaze stability and postural control and also improve well-being in daily activities. Taking into account the scarcity of studies in the literature that investigate the central auditory pathways in subjects who underwent vestibular rehabilitation therapy, it becames important to know the central auditory system from the brainstem to the auditory cortex, in subjects with peripheral vestibular disorders. OBJECTIVE: To characterize the auditory evoked potentials of short, middle and long latencies in subjects with peripheral vestibular disorders, as well as to evaluate the development of these potentials and the results obtained in the Dizziness Handicap Inventory (DHI) after vestibular rehabilitation therapy (VRT). METHODS: brainstem auditory evoked potential (BAEP), Auditory Middle- Latency Response (AMLR), cognitive potential (P300) and DHI were carried out in 20 subjects with Peripheral Vestibular Hyperfunction Syndrome and 17 subjects with Peripheral Vestibular Hypofunction Syndrome, aged between 20 and 70, before and after vestibular rehabilitation therapy. RESULTS: The results showed that the Peripheral Vestibular Hypofunction Syndrome group, presented higher percentage of altered results on BAEP and AMLR. Comparing the normal and altered results (qualitative analysis) between the groups in the BAEP, lower brainstem was predominantly observed in the Peripheral Vestibular Hypofunction Syndrome group before and after VRT; increased latencies of Na and Pa waves in AMLR after VRT, incresead latency of Pa wave in AMLR before VRT and electrode effect to the Na-Pa amplitude after VRT. The alteration predominantly observed in the Peripheral Vestibular Hyperfunction Syndrome group, was the other type one before VRT; increased latency of Pa wave in AMLR before and after VRT and both changes to the Na-Pa amplitude after VRT. In the study of the evolution before and after VRT, it was observed a higher percentage of similar results for the three potentials in both groups. Comparing results before and after VRT, the DHI greatest improvement occurred for the physical, emotional and functional aspects in the Peripheral Vestibular Hyperfunction Syndrome group and for the physical and emotional aspects in the Peripheral Vestibular Hypofunction Syndrome group. Further studies that evaluate the central auditory pathway of individuals with peripheral vestibular syndrome are needed to better characterize the electrophysiological findings
49

Pintura e vertigem

Deszo, Luciano Santos 31 October 2013 (has links)
Mais do que investigar algumas das relações possíveis entre a pintura e a fotografia, esta pesquisa tem como objetivo criar uma reflexão sobre a minha produção pictórica que estende-se desde o período da minha graduação e segue adiante, explorando os aspectos que permeiam o trabalho - as questões relativas à história da arte; os parques de diversões sob diferentes aspectos; a imagem automatizada e suas características, especialmente no contexto da tecnologia digital disponível no início do Século XXI. / Besides investigating the possible relations between painting and photography, this research work intends on creating a reflection about my pictorical production which began on my graduation years and keeps going on, exploring aspects related to the work - questions related to Art History; amusement parks through their different aspects; automated image and its characteristics, specialy on the context of digital technology available at the beginning of the 21st Century
50

Avaliação sequencial do equilíbrio pré e pós-implante coclear em pacientes com surdez pós-lingual / Sequential study of vestibular function pre- and post cochlear implantation in postlingual deafened patients

Patricia Arena Abramides 10 September 2014 (has links)
INTRODUÇÃO: A literatura é discordante com relação à interferência do IC sobre o equilíbrio corporal. Sendo assim, resolvemos avaliar o equilíbrio corporal de pacientes surdos pós-linguais, submetidos a implante coclear unilateral. OBJETIVO: Observar o equilíbrio corporal pré e pós-implante coclear (IC) ao longo de 1 ano. CASUÍSTICA E METODOLOGIA: Estudo prospectivo observacional realizado com 24 pacientes adultos, surdos pós-linguais submetidos à avaliação vestibular antes e depois da cirurgia de implante coclear unilateral. A avaliação vestibular contou com um questionário sobre vertigem, prova calórica (PC), cadeira rotatória (CR) e posturografia dinâmica computadorizada (PDC) aplicados no pré-operatório, 60, 120, 180 dias e 1 ano após a cirurgia de IC. RESULTADOS: A tontura foi referida por 13 (54,2%) pacientes pré-IC, enquanto 11 (45.8%) não apresentaram a queixa. Ao final do estudo 11 sujeitos (84,6%) referiram melhora da tontura, em 1 (7,7%) permaneceu inalterada e em 1 (7,7%) piorou. Dos 24 pacientes apenas 5 indivíduos (20,8%) desenvolveram tontura no pós-operatório imediato com resolução completa após um mês. A prova calórica identificou 7 (29,2%) sujeitos normorreflexos, 8 (33,3%) com hiporreflexia ou arreflexia unilateral , 3 (12,5%) com hiporreflexia bilateral e 6 (25%) com arreflexia vestibular bilateral (AVB).Houve interferência do estímulo elétrico em ambas as orelhas e na evolução da recuperação postural após ativação do IC, que promoveu a melhora significativa dos índices da PDC ao longo de um ano de acompanhamento. Ao final do estudo, as médias numéricas das condições avaliadas pela PDC mostraram-se superiores nos indivíduos que apresentaram resposta à prova calórica em relação àqueles que possuíam AVB. CONCLUSÃO: Foi decisiva a presença ou não de resposta pós-calórica na evolução do equilíbrio corporal ao longo de 1 ano. A ausência de resposta pós-calórica na avaliação pré-operatória implicou em pior prognóstico na evolução do equilíbrio corporal. No entanto, o melhor desempenho postural dos sujeitos com AVB pode ser explicado pelo melhor aproveitamento da informação visual. É fundamental documentar a presença de função vestibular antes da cirurgia de IC, pois dela depende o prognóstico do individuo em relação às habilidades de aprendizado e recuperação postural ao longo do tempo / INTRODUCTION: There is no consensus in the literature with regard to the effects of cochlear implantation (CI) on vestibular function and balance in patients with deafness. Because of this fact we decided to assess vestibular function before and after unilateral cochlear implantation (CI) in patients with postlingual deafness. OBJECTIVE: To assess balance before and after cochlear implantation (CI) over the course of 1 year. PATIENTS AND METHODS: prospective, observational study sought to assess balance in 24 postlingually deaf adults undergoing vestibular evaluation before and after cochlear implantation (CI). Vestibular assessment consisting of a vertigo questionnaire, caloric tests (CT), rotary chair testing (RC), and computerized dynamic posturography (CDP) was performed preoperatively and at 60, 120, 180 days and 1 year after CI. RESULTS: Overall, 13 patients (54.2%) reported preoperative dizziness and 11 (45.8%) did not have the symptom pre-CI. At the end of the study dizziness ameliorated in 11 (84.6%), remained unchanged in 1 (7.7%) and worsened in 1 (7.7%). Only 5 of the 24 patients (20.8%) developed immediate postoperative dizziness, which resolved within a month. The caloric tests identified 7 (29.2%) patients with normal reflexes, 8 (33.3%) with unilateral areflexia or hyporeflexia, 3 (12.5%) with bilateral hyporeflexia, and 6 (25%) with bilateral vestibular loss (BVL). Electrical stimulation affected both ears and interfered with the progression of postural recovery after CI activation, which led to a significant improvement in CDP values over the course of 1 year of follow-up. At the end of the study, the mean values of the conditions assessed by CDP were higher in individuals who had responded to caloric tests than in individuals with BVL. The better postural performance of subjects with BVL may be due to better use of visual information. CONCLUSION: The presence or absence of CT response was a decisive determinant of balance outcomes over the year after surgery. The absence of post-caloric response in preoperative assessment resulted in a worse prognosis in the evolution of body balance. However, patients with BVL were able to use the visual information for postural stabilization with improvement in the Composite Score. It is essential that vestibular assessment findings be documented before CI surgery because a patient\'s prognosis in terms of learning skills and postural recovery over time depends on this information

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