Video head impulse test in vestibular migraine / Teste de impulso cefálico por vídeo na enxaqueca vestibular

Abstract Introduction: Vestibular migraine as an entity was described in 1999 and its pathophysiology is still not established. Simultaneously with research to better understand vestibular migraine, there has been an improvement in vestibular function assessment. The video-head impulse test is one of the latest tools to evaluate vestibular function, measuring its vestibular-ocular reflex gain. Objective: To evaluate vestibular function of vestibular migraine patients using video-head impulse test. Methods: Cross-sectional case-control study homogeneous by age and gender with vestibular migraine patients according to the 2012-2013 Barany Society/International Headache Society diagnostic criteria submitted to video-head impulse test during intercrisis period. Results: 31 vestibular migraine patients were evaluated with a predominantly female group (90.3%) and mean age of 41 years old. Vestibular function was normal in both patient and control groups. Gain values for horizontal canals were similar between the two groups, but gain values for vertical canals were higher in the group with vestibular migraine (p < 0.05). Patients with vestibular migraine felt more dizziness while performing the video-head impulse test than control subjects (p < 0.001). Conclusions: Patients with vestibular migraine present normal vestibular function during intercrisis period when evaluated by video-head impulse test. Vertical canals, however, have higher gains in patients with vestibular migraine than in control subjects. Vestibular migraine patients feel dizziness more often while conducting video-head impulse test.

Resumo Introdução: A enxaqueca vestibular foi descrita como uma entidade em 1999 e sua fisiopatologia ainda não está estabelecida. Simultaneamente às pesquisas para entender melhor essa condição clínica, houve uma melhoria na avaliação da função vestibular. O teste de impulso cefálico por vídeo, vHIT, é uma das mais recentes ferramentas para avaliar a função vestibular, mede seu ganho do reflexo vestíbulo-ocular. Objetivo: Avaliar com o vHIT a função vestibular de pacientes com enxaqueca vestibular. Método: Estudo transversal de caso-controle, homogêneo em relação a idade e sexo, de pacientes com enxaqueca vestibular, de acordo com os critérios de diagnóstico da Barany Society/International Headache Society de 2012-2013, submetidos ao vHIT durante o período intercrises. Resultados: Foram avaliados 31 pacientes com enxaqueca vestibular com um grupo predominantemente feminino (90,3%) e média de 41 anos. A função vestibular era normal nos grupos paciente e controle. Os valores de ganho para canais horizontais foram semelhantes entre os dois grupos, mas os valores de ganho para canais verticais foram maiores no grupo com enxaqueca vestibular (p < 0,05). Pacientes com enxaqueca vestibular sentiram mais tontura ao fazer o vHIT do que os controles (p < 0,001). Conclusões: Pacientes com enxaqueca vestibular apresentam função vestibular normal durante o período intercrises quando avaliados pelo vHIT. Os canais verticais, no entanto, apresentam ganhos maiores em pacientes com enxaqueca vestibular do que em indivíduos controle. Pacientes com enxaqueca vestibular sentem tontura com maior frequência enquanto fazem o vHIT.

Video head impulse test in vestibular migraine.

INTRODUCTION: Vestibular migraine as an entity was described in 1999 and its pathophysiology is still not established. Simultaneously with research to better understand vestibular migraine, there has been an improvement in vestibular function assessment. The video-head impulse test is one of the latest tools to evaluate vestibular function, measuring its vestibular-ocular reflex gain. OBJECTIVE: To evaluate vestibular function of vestibular migraine patients using video-head impulse test. METHODS: Cross-sectional case-control study homogeneous by age and gender with vestibular migraine patients according to the 2012-2013 Barany Society/International Headache Society diagnostic criteria submitted to video-head impulse test during intercrisis period. RESULTS: 31 vestibular migraine patients were evaluated with a predominantly female group (90.3%) and mean age of 41 years old. Vestibular function was normal in both patient and control groups. Gain values for horizontal canals were similar between the two groups, but gain values for vertical canals were higher in the group with vestibular migraine (p<0.05). Patients with vestibular migraine felt more dizziness while performing the video-head impulse test than control subjects (p<0.001). CONCLUSIONS: Patients with vestibular migraine present normal vestibular function during intercrisis period when evaluated by video-head impulse test. Vertical canals, however, have higher gains in patients with vestibular migraine than in control subjects. Vestibular migraine patients feel dizziness more often while conducting video-head impulse test.

Neurotology: definitions and evidence-based therapies - Results of the I Brazilian Forum of Neurotology / Otoneurologia: definições e terapias baseadas em evidências - Resultados do I Fórum Brasileiro de Otoneurologia

Abstract Introduction: Neurotology is a rapidly expanding field of knowledge. The study of the vestibular system has advanced so much that even basic definitions, such as the meaning of vestibular symptoms, have only recently been standardized. Objective: To present a review of the main subjects of neurotology, including concepts, diagnosis and treatment of Neurotology, defining current scientific evidence to facilitate decision-making and to point out the most evidence-lacking areas to stimulate further new research. Methods: This text is the result of the I Brazilian Forum of Neurotology, which brought together the foremost Brazilian researchers in this area for a literature review. In all, there will be three review papers to be published. This first review will address definitions and therapies, the second one will address diagnostic tools, and the third will define the main diseases diagnoses. Each author performed a bibliographic search in the LILACS, SciELO, PubMed and MEDLINE databases on a given subject. The text was then submitted to the other Forum participants for a period of 30 days for analysis. A special chapter, on the definition of vestibular symptoms, was translated by an official translation service, and equally submitted to the other stages of the process. There was then a in-person meeting in which all the texts were orally presented, and there was a discussion among the participants to define a consensual text for each chapter. The consensual texts were then submitted to a final review by four professors of neurotology disciplines from three Brazilian universities and finally concluded. Based on the full text, available on the website of the Brazilian Association of Otorhinolaryngology and Cervical-Facial Surgery, this summary version was written as a review article. Result: The text presents the official translation into Portuguese of the definition of vestibular symptoms proposed by the Bárány Society and brings together the main scientific evidence for each of the main existing therapies for neurotological diseases. Conclusion: This text rationally grouped the main topics of knowledge regarding the definitions and therapies of Neurotology, allowing the reader a broad view of the approach of neurotological patients based on scientific evidence and national experience, which should assist them in clinical decision-making, and show the most evidence-lacking topics to stimulate further study.

Resumo Introdução: A otoneurologia é uma área de conhecimento que tem se expandido muito rapidamente. O estudo do sistema vestibular tem avançado tanto que mesmo definições básicas, como o significado dos sintomas vestibulares, foram apenas recentemente padronizadas. Objetivo: Apresentar uma revisão dos principais assuntos da otoneurologia, inclusive conceitos, diagnóstico e tratamento da otoneurologia, definir a evidência científica atual para facilitar a tomada de decisões e demonstrar as áreas mais carentes de evidência para estimular novas pesquisas. Método: Este texto é fruto do I Fórum Brasileiro de Otoneurologia, que reuniu os principais pesquisadores brasileiros dessa área para uma revisão da literatura. Serão feitos três trabalhos de revisão a serem publicados. Este primeiro abordou as definições e as terapias, o segundo abordará as ferramentas diagnósticas e o terceiro definirá os principais diagnósticos. Cada autor fez um levantamento bibliográfico na base de dados da Lilacs, SciELO, Pubmed e Medline de um determinado assunto. O seu texto foi então submetido aos demais participantes do Fórum por 30 dias para análise. Um capítulo especial, da definição dos sintomas vestibulares, foi traduzido por serviço de tradução oficial e igualmente submetido às demais etapas do processo. Houve então uma reunião presencial em que todos os textos foram apresentados oralmente e houve uma discussão entre os participantes para a definição de um texto consensual para cada capítulo. Os textos consensuais foram então submetidos a uma revisão final por quatro professores de otoneurologia de três universidades brasileiras e, por fim, finalizado. A partir do texto completo, publicado no site da Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial, foi escrita esta versão-resumo como artigo de revisão. Resultado: O texto apresenta a tradução oficial para o português da definição dos sintomas vestibulares propostos pela Barany Society e agrupa as principais evidências científicas para cada um das principais terapias existentes para as doenças otoneurológicas. Conclusão: Este texto agrupou de forma racional os principais tópicos de conhecimento a respeito das definições e terapias da otoneurologia, permite ao leitor uma visão ampla da abordagem dos pacientes otoneurológicos baseada em evidências científicas e experiência nacional, que deverá auxiliá-lo na tomada de decisões clínicas, e mostra os assuntos mais carentes de evidência para estimular novos estudos.

Neurotology: definitions and evidence-based therapies - Results of the I Brazilian Forum of Neurotology.

INTRODUCTION: Neurotology is a rapidly expanding field of knowledge. The study of the vestibular system has advanced so much that even basic definitions, such as the meaning of vestibular symptoms, have only recently been standardized. OBJECTIVE: To present a review of the main subjects of neurotology, including concepts, diagnosis and treatment of Neurotology, defining current scientific evidence to facilitate decision-making and to point out the most evidence-lacking areas to stimulate further new research. METHODS: This text is the result of the I Brazilian Forum of Neurotology, which brought together the foremost Brazilian researchers in this area for a literature review. In all, there will be three review papers to be published. This first review will address definitions and therapies, the second one will address diagnostic tools, and the third will define the main diseases diagnoses. Each author performed a bibliographic search in the LILACS, SciELO, PubMed and MEDLINE databases on a given subject. The text was then submitted to the other Forum participants for a period of 30 days for analysis. A special chapter, on the definition of vestibular symptoms, was translated by an official translation service, and equally submitted to the other stages of the process. There was then a in-person meeting in which all the texts were orally presented, and there was a discussion among the participants to define a consensual text for each chapter. The consensual texts were then submitted to a final review by four professors of neurotology disciplines from three Brazilian universities and finally concluded. Based on the full text, available on the website of the Brazilian Association of Otorhinolaryngology and Cervical-Facial Surgery, this summary version was written as a review article. RESULT: The text presents the official translation into Portuguese of the definition of vestibular symptoms proposed by the Bárány Society and brings together the main scientific evidence for each of the main existing therapies for neurotological diseases. CONCLUSION: This text rationally grouped the main topics of knowledge regarding the definitions and therapies of Neurotology, allowing the reader a broad view of the approach of neurotological patients based on scientific evidence and national experience, which should assist them in clinical decision-making, and show the most evidence-lacking topics to stimulate further study.

Endolymphatic hydrops evaluation on MRI: Practical considerations.

Four-hour delayed three-dimensional fluid-attenuated inversion recovery (3D-FLAIR) sequence after intravenous gadolinium-based contrast agent administration is an optimal magnetic resonance imaging technique to evaluate endolymphatic hydrops in patients with known or suspected Ménière's disease. Nonenhanced endolymphatic space surrounded by enhanced perilymphatic space is evaluated in the cochlea and vestibule separately. In cochlear hydrops, the scala media is enlarged, potentially obliterating the scala vestibuli. In vestibular hydrops, the size of the saccule becomes equal to or larger than that of the utricle; as hydrops progresses, the saccule and utricle become larger and confluent until complete obliteration of the vestibule's perilymphatic space. In patients with a unilateral clinical presentation of Ménière's disease, it is possible to depict the asymmetries of perilymph enhancement, which may be increased on the affected side and reflect a permeability alteration of the blood-perilymph barrier. In addition, endolymphatic hydrops can be observed in the asymptomatic ear of these patients with a unilateral clinical presentation, showing that Ménière's disease tends to undergo bilateral evolution over time.

Prophylactic treatment of vestibular migraine / Tratamento profilático da migrânea vestibular

Abstract Introduction: Vestibular migraine (VM) is now accepted as a common cause of episodic vertigo. Treatment of VM involves two situations: the vestibular symptom attacks and the period between attacks. For the latter, some prophylaxis methods can be used. The current recommendation is to use the same prophylactic drugs used for migraines, including β-blockers, antidepressants and anticonvulsants. The recent diagnostic definition of vestibular migraine makes the number of studies on its treatment scarce. Objective: To evaluate the efficacy of prophylactic treatment used in patients from a VM outpatient clinic. Methods: Review of medical records from patients with VM according to the criteria of the Bárány Society/International Headache Society of 2012 criteria. The drugs used in the treatment and treatment response obtained through the visual analog scale (VAS) for dizziness and headache were assessed. The pre and post-treatment VAS scores were compared (the improvement was evaluated together and individually, per drug used). Associations with clinical subgroups of patients were also assessed. Results: Of the 88 assessed records, 47 were eligible. We included patients that met the diagnostic criteria for VM and excluded those whose medical records were illegible and those of patients with other disorders causing dizziness and/or headache that did not meet the 2012 criteria for VM. 80.9% of the patients showed improvement with prophylaxis (p < 0.001). Amitriptyline, Flunarizine, Propranolol and Topiramate improved vestibular symptoms (p < 0.001) and headache (p < 0.015). The four drugs were effective in a statistically significant manner. There was a positive statistical association between the time of vestibular symptoms and clinical improvement. There was no additional benefit in hypertensive patients who used antihypertensive drugs as prophylaxis or depressed patients who used antidepressants in relation to other prophylactic drugs. Drug association did not show statistically significant results in relation to the use of a single drug. Conclusions: Prophylactic medications used to treat VM improve the symptoms of this disease, but there is no statistically significant difference between the responses of prophylactic drugs. The time of vestibular symptom seems to increase the benefit with prophylactic treatment.

Resumo Introdução: A migrânea vestibular (MV) é aceita atualmente como uma causa comum de vertigem episódica. O tratamento da MV envolve duas situações: as crises de sintomas vestibulares e o período intercrise. Para esse último, pode-se usar algum método de profilaxia. A recomendação atual é que se usem os mesmos medicamentos profiláticos usados para a enxaqueca, o que inclui os β-bloqueadores, antidepressivos e anticonvulsivantes. A recente definição diagnóstica da migrânea vestibular torna escasso o número de estudos sobre seu tratamento. Objetivo: Avaliar a eficácia do tratamento profilático usado em pacientes em um ambulatório de MV. Método: Revisão de prontuários de pacientes com MV pelos critérios da Bárány Society/International Headeache Society de 2012. Foram pesquisados os medicamentos usados e resposta ao tratamento obtida através da escala visual analógica (EVA) para tontura e cefaleia. Foram comparados os escores da EVA pré e pós-tratamento (a melhoria foi avaliada em conjunto e individualmente por droga usada). Também foram pesquisadas relações com subgrupos clínicos dos pacientes. Resultados: De 88 prontuários estudados, 47 foram elegíveis. Incluíram-se os pacientes que preenchiam os critérios diagnósticos para MV, foram excluídos os prontuários ilegíveis e aqueles de pacientes com outro distúrbio causador de tontura e/ou cefaleia que não preenchiam critérios de 2012 para MV. Apresentaram melhoria com a profilaxia 80,9% dos pacientes (p < 0,001). Amitriptilina, flunarizina, propranolol e topiramato apresentaram melhoria para sintomas vestibulares (p < 0,001) e para cefaleia (p < 0,015). Os quatro medicamentos foram eficazes de forma estatisticamente significante. Houve relação estatística positiva entre tempo de sintoma vestibular e melhoria clínica. Não houve benefício adicional para hipertensos que usaram anti-hipertensivos como profilaxia ou para os deprimidos que usaram antidepressivos em relação ao uso dos outros profiláticos. A associação de medicamentos não mostrou resultados estatisticamente significantes do uso de um medicamento isolado. Conclusões: Os medicamentos profiláticos usados para MV melhoram os sintomas dessa doença, porém não há diferença estatisticamente significante entre as respostas dos medicamentos profiláticos. O tempo de sintoma vestibular parece aumentar a melhoria obtida com o tratamento profilático.

Prophylactic treatment of vestibular migraine.

INTRODUCTION: Vestibular migraine (VM) is now accepted as a common cause of episodic vertigo. Treatment of VM involves two situations: the vestibular symptom attacks and the period between attacks. For the latter, some prophylaxis methods can be used. The current recommendation is to use the same prophylactic drugs used for migraines, including ß-blockers, antidepressants and anticonvulsants. The recent diagnostic definition of vestibular migraine makes the number of studies on its treatment scarce. OBJECTIVE: To evaluate the efficacy of prophylactic treatment used in patients from a VM outpatient clinic. METHODS: Review of medical records from patients with VM according to the criteria of the Bárány Society/International Headache Society of 2012 criteria. The drugs used in the treatment and treatment response obtained through the visual analog scale (VAS) for dizziness and headache were assessed. The pre and post-treatment VAS scores were compared (the improvement was evaluated together and individually, per drug used). Associations with clinical subgroups of patients were also assessed. RESULTS: Of the 88 assessed records, 47 were eligible. We included patients that met the diagnostic criteria for VM and excluded those whose medical records were illegible and those of patients with other disorders causing dizziness and/or headache that did not meet the 2012 criteria for VM. 80.9% of the patients showed improvement with prophylaxis (p<0.001). Amitriptyline, Flunarizine, Propranolol and Topiramate improved vestibular symptoms (p<0.001) and headache (p<0.015). The four drugs were effective in a statistically significant manner. There was a positive statistical association between the time of vestibular symptoms and clinical improvement. There was no additional benefit in hypertensive patients who used antihypertensive drugs as prophylaxis or depressed patients who used antidepressants in relation to other prophylactic drugs. Drug association did not show statistically significant results in relation to the use of a single drug. CONCLUSIONS: Prophylactic medications used to treat VM improve the symptoms of this disease, but there is no statistically significant difference between the responses of prophylactic drugs. The time of vestibular symptom seems to increase the benefit with prophylactic treatment.

Vestibular migraine: clinical and epidemiological aspects / Migrânea vestibular: aspectos clínicos e epidemiológicos

ABSTRACT INTRODUCTION: Vestibular migraine (VM) is one of the most often common diagnoses in neurotology, but only recently has been recognized as a disease. OBJECTIVE: To analyze the clinical and epidemiological profile of patients with VM. METHODS: This was a retrospective, observational, and descriptive study, with analysis of patients' records from an outpatient VM clinic. RESULTS: 94.1% of patients were females and 5.9% were males. The mean age was 46.1 years; 65.6% of patients had had headache for a longer period than dizziness. A correlation was detected between VM symptoms and the menstrual period. 61.53% of patients had auditory symptoms, with tinnitus the most common, although tonal audiometry was normal in 68.51%. Vectoelectronystagmography was normal in 67.34%, 10.20% had hyporeflexia, and 22.44% had vestibular hyperreflexia. Electrophysiological assessment showed no abnormalities in most patients. Fasting plasma glucose and glycemic curve were normal in most patients, while the insulin curve was abnormal in 75%. 82% of individuals with MV showed abnormalities on the metabolism of carbohydrates. CONCLUSION: VM affects predominantly middle-aged women, with migraine headache representing the first symptom, several years before vertigo. Physical, auditory, and vestibular evaluations are usually normal. The most frequent vestibular abnormality was hyperreflexia. Most individuals showed abnormality related to carbohydrate metabolism.

Resumo Introdução: Migrânea vestibular (MV) corresponde a um dos mais frequentes diagnósticos em otoneurologia, o que justifica a importância de seu estudo, embora tenha sido apenas recentemente reconhecida como entidade nosológica. Objetivo: Analisar os perfis clínico e epidemiológico dos pacientes atendidos em um ambulatório de migrânea vestibular. Método: Estudo retrospectivo, observacional e descritivo, com análise de prontuários dos pacientes do ambulatório de MV. Resultados: O ambulatório é composto por 94,1% de mulheres e 5,9% de homens, com média de idade 46,1 anos. O tempo de cefaleia foi superior ao de vertigem em 65,6% dos pacientes. Observou-se correlação entre os sintomas e o período menstrual. A maioria (61,53%) dos indivíduos apresentou algum sintoma auditivo, sendo o zumbido o mais frequente, embora a audiometria tenha sido normal em 68,51%. A vectoeletronistagmografia apresentou-se normal em 67,34%, enquanto 10,20% apresentaram hiporreflexia e 22,44% hiperreflexia vestibular. Exames eletrofisiológicos não mostraram alterações na maioria dos pacientes. Glicemia dejejum e curva glicêmica foram normais para a maioria dos pacientes, enquanto a curva insulinêmica mostrou-se alterada em 75% dos indivíduos. 82% dos indivíduos com MV apresentaram alguma alteração relativa ao metabolismo dos carboidratos. Conclusão: Migrânea vestibular acomete, predominantemente, mulheres de meia idade, com cefaleia migranosa e vertigem, sendo a primeira de instalação mais precoce. O exame físico no período intercrise, bem como as avaliações auditiva e vestibular, mostram-se, geralmente, normais. O tipo de alteração vestibular mais observado foi a hiperreflexia labiríntica. A maioria os indivíduos avaliados apresentou alterações relativas ao metabolismo dos carboidratos.

Vestibular migraine: clinical and epidemiological aspects.

INTRODUCTION: Vestibular migraine (VM) is one of the most often common diagnoses in neurotology, but only recently has been recognized as a disease. OBJECTIVE: To analyze the clinical and epidemiological profile of patients with VM. METHODS: This was a retrospective, observational, and descriptive study, with analysis of patients' records from an outpatient VM clinic. RESULTS: 94.1% of patients were females and 5.9% were males. The mean age was 46.1 years; 65.6% of patients had had headache for a longer period than dizziness. A correlation was detected between VM symptoms and the menstrual period. 61.53% of patients had auditory symptoms, with tinnitus the most common, although tonal audiometry was normal in 68.51%. Vectoelectronystagmography was normal in 67.34%, 10.20% had hyporeflexia, and 22.44% had vestibular hyperreflexia. Electrophysiological assessment showed no abnormalities in most patients. Fasting plasma glucose and glycemic curve were normal in most patients, while the insulin curve was abnormal in 75%. 82% of individuals with MV showed abnormalities on the metabolism of carbohydrates. CONCLUSION: VM affects predominantly middle-aged women, with migraine headache representing the first symptom, several years before vertigo. Physical, auditory, and vestibular evaluations are usually normal. The most frequent vestibular abnormality was hyperreflexia. Most individuals showed abnormality related to carbohydrate metabolism.

Vestibular migraine: comparative analysis between diagnostic criteria / Migrânea vestibular: análise comparativa entre critérios diagnósticos

ABSTRACT INTRODUCTION: There is a strong association between vertigo and migraine. Vestibular migraine (VM) was described in 1999, and diagnostic criteria were proposed in 2001 and revised in 2012. OBJECTIVE: To compare the diagnostic criteria for VM proposed in 2001 with 2012 criteria with respect to their diagnostic power and therapeutic effect of VM prophylaxis. METHODS: Clinical chart review of patients attended to in a VM clinic. RESULTS: The 2012 criteria made the diagnosis more specific, restricting the diagnosis of VM to a smaller number of patients, such that 87.7% of patients met 2001 criteria and 77.8% met 2012 criteria. Prophylaxis for VM was effective both for patients diagnosed by either set of criteria and for those who did not meet any of the criteria. CONCLUSIONS: The 2012 diagnostic criteria for VM limited the diagnosis of the disease to a smaller number of patients, mainly because of the type, intensity, and duration of dizziness. Patients diagnosed with migraine and associated dizziness demonstrated improvement after prophylactic treatment of VM, even when they did not meet diagnostic criteria.

RESUMO Introdução: Há forte associação entre vertigem e enxaqueca. A migrânea vestibular (MV) foi descrita em 1999 e critérios diagnósticos foram propostos em 2001 e revisados em 2012. Objetivo: Comparar os critérios diagnósticos para MV propostos em 2001 com os de 2012, através de seu poder diagnóstico e efeito terapêutico da profilaxia da MV. Método: Revisão de prontuários de pacientes atendidos em uma clínica de MV. Resultados: Os critérios de 2012 tornaram o diagnóstico mais específico, restringindo a MV a um número menor de pacientes, sendo que 87,7% dos pacientes preencheram os critérios de 2001 e 77,8% preencheram os critérios de 2012. O tratamento profilático para MV foi eficaz tanto para pacientes diagnosticados por algum dos critérios quanto para aqueles que não se enquadravam em qualquer critério. Conclusões: Os critérios diagnósticos de 2012 para MV restringiram o diagnóstico da doença para um menor número de pacientes, principalmente por causa do tipo de tontura, a sua intensidade e duração. Pacientes com enxaqueca diagnosticada e tontura associada apresentaram melhora após o tratamento profilático da MV mesmo quando não preenchem critérios diagnósticos. (c) 2015 Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial. Publicado por Elsevier Editora Ltda. Todos os direitos reservados.

Vestibular migraine: comparative analysis between diagnostic criteria.

INTRODUCTION: There is a strong association between vertigo and migraine. Vestibular migraine (VM) was described in 1999, and diagnostic criteria were proposed in 2001 and revised in 2012. OBJECTIVE: To compare the diagnostic criteria for VM proposed in 2001 with 2012 criteria with respect to their diagnostic power and therapeutic effect of VM prophylaxis. METHODS: Clinical chart review of patients attended to in a VM clinic. RESULTS: The 2012 criteria made the diagnosis more specific, restricting the diagnosis of VM to a smaller number of patients, such that 87.7% of patients met 2001 criteria and 77.8% met 2012 criteria. Prophylaxis for VM was effective both for patients diagnosed by either set of criteria and for those who did not meet any of the criteria. CONCLUSIONS: The 2012 diagnostic criteria for VM limited the diagnosis of the disease to a smaller number of patients, mainly because of the type, intensity, and duration of dizziness. Patients diagnosed with migraine and associated dizziness demonstrated improvement after prophylactic treatment of VM, even when they did not meet diagnostic criteria.

Hyperinsulinemia and hyperglycemia: risk factors for recurrence of benign paroxysmal positional vertigo / Hiperinsulinismo e hiperglicemia: fatores de risco para recorrência de vertigem postural paroxística benigna

INTRODUCTION: Changes in carbohydrate metabolism may lead to recurrence of benign paroxysmal positional vertigo.OBJECTIVE: To evaluate the influence of the disturbance of carbohydrate metabolism in the recurrence of idiopathic BPPV.METHODS: A longitudinal prospective study of a cohort, with 41 months follow-up. We analyzed the results of 72 glucose-insulin curves in patients with recurrence of BPPV. The curves were classified into intolerance, hyperinsulinemia, hyperglycemia and normal.RESULTS: The RR for hyperinsulinism was 4.66 and p = 0.0015. Existing hyperglycemia showed an RR = 2.47, with p = 0.0123. Glucose intolerance had a RR of 0.63, with p = 0.096. When the examination was within normal limits, the result was RR = 0.2225 and p = 0.030.DISCUSSION: Metabolic changes can cause dizziness and vertigo and are very common in people who have cochleovestibular disorders. However, few studies discuss the relationship between idiopathic BPPV and alterations in carbohydrate metabolism. In the present study, we found that both hyperglycemia and hyperinsulinemia are risk factors for the recurrence of BPPV, whereas a normal test was considered a protective factor; all these were statistically significant. Glucose intolerance that was already present was not statistically significant in the group evaluated.CONCLUSION: Hyperinsulinemia and hyperglycemia are risk factors for the recurrence of idiopathic BPPV and a normal exam is considered a protective factor.

INTRODUÇÃO: As alterações do metabolismo do carboidrato podem levar a recorrência de vertigem posicional paroxística benigna.OBJETIVO: Avaliar a influência dos distúrbios do carboidrato na recorrência da VPPB idiopática.MÉTODO: Estudo longitudinal, do tipo coorte, prospectivo, com 41 meses de acompanhamento. Analisaram-se 72 resultados de curvas glicoinsulinêmicas em pacientes portadores de recorrência de VPPB. As curvas foram classificadas em intolerância, hiperinsulinemia, hiperglicemia e normal.RESULTADOS: O hiperinsulinismo teve RR = 4,66 e p = 0,0015. A hiperglicemia apresentou um RR = 2,47 e p = 0,0123. Na intolerância a glicose o RR = 0,63 e p = 0,096. No exame normal, o RR = 0,2225 e p = 0,030.DISCUSSÃO: As alterações metabólicas podem causar tontura e vertigem e são muito frequentes na população que apresenta distúrbios cocleovestibulares. Contudo, poucos trabalhos falam sobre a relação entre a VPPB idiopática e as alterações nos carboidratos. No presente estudo, verificou-se que tanto a hiperglicemia, quanto o hiperinsulinismo são fatores de risco para recorrência de VPPB, ao passo que o exame normal foi considerado fator protetor, todos estes estatisticamente significantes. Já a intolerância à glicose não teve significância estatística no grupo avaliado.CONCLUSÃO: O hiperinsulinismo e a hiperglicemia se comportam como fatores de risco para a recorrência de VPPB idiopática, assim como o exame normal como um fator protetor.

Hyperinsulinemia and hyperglycemia: risk factors for recurrence of benign paroxysmal positional vertigo.

INTRODUCTION: Changes in carbohydrate metabolism may lead to recurrence of benign paroxysmal positional vertigo. OBJECTIVE: To evaluate the influence of the disturbance of carbohydrate metabolism in the recurrence of idiopathic BPPV. METHODS: A longitudinal prospective study of a cohort, with 41 months follow-up. We analyzed the results of 72 glucose-insulin curves in patients with recurrence of BPPV. The curves were classified into intolerance, hyperinsulinemia, hyperglycemia and normal. RESULTS: The RR for hyperinsulinism was 4.66 and p=0.0015. Existing hyperglycemia showed an RR=2.47, with p=0.0123. Glucose intolerance had a RR of 0.63, with p=0.096. When the examination was within normal limits, the result was RR=0.2225 and p=0.030. DISCUSSION: Metabolic changes can cause dizziness and vertigo and are very common in people who have cochleovestibular disorders. However, few studies discuss the relationship between idiopathic BPPV and alterations in carbohydrate metabolism. In the present study, we found that both hyperglycemia and hyperinsulinemia are risk factors for the recurrence of BPPV, whereas a normal test was considered a protective factor; all these were statistically significant. Glucose intolerance that was already present was not statistically significant in the group evaluated. CONCLUSION: Hyperinsulinemia and hyperglycemia are risk factors for the recurrence of idiopathic BPPV and a normal exam is considered a protective factor.

Labirintopatias / Vestibular disorders

A tontura é considerada um dos sintomas mais comuns em Medicina e a principal manifestação clínica das labirintopatias. No presente texto são revisados os aspectos clínicos mais relevantes das labirintopatias consideradas mais prevalentes em nosso meio. Os principais diagnósticos diferenciais são apresentados. As opções terapêuticas também estão descritas e incluem o tratamento etiológico, a correção dos hábitos prejudiciais ao sistema vestibular, os medicamentos, os exercícios de reabilitação vestibular, a psicoterapia e, em casos específicos, os procedimentos cirúrgicos.

Atypical manifestation of vestibular schwannoma.

Introduction Vestibular schwannoma (also known as acoustic neuroma) is a benign tumor whose cells are derived from Schwann sheaths, which commonly occurs from the vestibular portion of the eighth cranial nerve. Furthermore, vestibular schwannomas account for ∼8% of intracranial tumors in adults and 80 to 90% of tumors of the cerebellopontine angle. Its symptoms are varied, but what stands out most is a unilateral sensorineural hearing loss, with a low index of speech recognition. Objective Describe an atypical manifestation of vestibular schwannoma. Case Report The 46-year-old woman had vertigo and binaural hearing loss and fullness, with ear, nose, and throat examination suggestive of cochlear injury. After 6 months, the patient developed worsening of symptoms and onset of right unilateral tinnitus. In further exams the signs of cochlear damage remained, except for the vestibular test (hyporeflexia). Magnetic resonance imaging showed an expansive lesion in the right cerebellopontine angle. Discussion This report warns about the atypical manifestations of vestibular schwannoma, which must always be remembered in investigating and diagnosing hearing loss.

Atypical Manifestation of Vestibular Schwannoma

Vestibular schwannoma (also known as acoustic neuroma) is a benign tumor whose cells are derived from Schwann sheaths, which commonly occurs from the vestibular portion of the eighth cranial nerve. Furthermore, vestibular schwannomas account for ∼8% of intracranial tumors in adults and 80 to 90% of tumors of the cerebellopontine angle. Its symptoms are varied, but what stands out most is a unilateral sensorineural hearing loss, with a low index of speech recognition. Objective: Describe an atypical manifestation of vestibular schwannoma. Case Report: The 46-year-old woman had vertigo and binaural hearing loss and fullness, with ear, nose, and throat examination suggestive of cochlear injury. After 6 months, the patient developed worsening of symptoms and onset of right unilateral tinnitus. In further exams the signs of cochlear damage remained, except for the vestibular test (hyporeflexia). Magnetic resonance imaging showed an expansive lesion in the right cerebellopontine angle. Discussion: This report warns about the atypical manifestations of vestibular schwannoma, which must always be remembered in investigating and diagnosing hearing loss...

Avaliação da telelaringoscopia no diagnóstico das lesões benignas da laringe / Assessment telelaryngoscopy the diagnosis of benign laryngeal

O objetivo deste estudo é avaliar a telelaringoscopia comparando seus resultados com os da microlaringoscopia de suspensão. Método: foi realizado estudo retrospectivo de um grupo de 135 pacientes consecutivos com diagnóstico de lesões benignas da prega vocal submetidos a microlaringoscopia de suspensão no período de janeiro de 2005 a junho de 2011. De um total de 1495 pacientes avaliados no ambulatório de laringe, 156 foram submetidos a cirurgia, tendo 142 sido enquadrados nos critérios de inclusão e 7 excluídos, resultando num total de 135 pacientes avaliados pelo presente estudo. Os achados do exame de telelaringoscopia foram comparados com os da microlaringoscopia de suspensão. O resultado foi o grau de acerto do exame pré-operatório. Resultados: dos 135 pacientes avaliados, foram encontrados 27 homens (20%) e 108(80%). A idade dos pacientes variou de 15 anos a 78 anos, com média de 47,39 anos. O tabagismo foi encontrado em 51,6%. A carga tabágica média verificada foi de 40 maços-ano. O uso profissional da voz foi observado em 51,1% dos pacientes. O grau de acerto entre exame pré-operatório e achados cirúrgicos foi determinado pela medida estatística da acurácia. Este indicador variou de 71,8% a 99,3% dependendo da lesão da prega vocal avaliada. As medidas de sensibilidade e especificidade, bem como os valores preditivos positivos e negativos também foram calculados. Conclusões: o exame de telelaringoscopia apresentou grande confiabilidade através dos resultados de acurácia, sensibilidade, especificidade, valores preditivos positivos e negativos bem como através de comparação estatística com os achados à microcirurgia de laringe. As lesões benignas que mais estão relacionadas a resultados divergentes entre telelaringoscopia e microlaringoscopia de suspensão são os sulcos vocais em suas três formas de apresentação: sulco estria menor, sulco estria maior e sulco tipo bolsa

Avaliação da telelaringoscopia no diagnóstico das lesões benignas da laringe

O objetivo deste estudo é avaliar a telelaringoscopia comparando seus resultados com os da microlaringoscopia de suspensão. Método: foi realizado estudo retrospectivo de um grupo de 135 pacientes consecutivos com diagnóstico de lesões benignas da prega vocal submetidos a microlaringoscopia de suspensão no período de janeiro de 2005 a junho de 2011. De um total de 1495 pacientes avaliados no ambulatório de laringe, 156 foram submetidos a cirurgia, tendo 142 sido enquadrados nos critérios de inclusão e 7 excluídos, resultando num total de 135 pacientes avaliados pelo presente estudo. Os achados do exame de telelaringoscopia foram comparados com os da microlaringoscopia de suspensão. O resultado foi o grau de acerto do exame pré-operatório. Resultados: dos 135 pacientes avaliados, foram encontrados 27 homens (20%) e 108(80%). A idade dos pacientes variou de 15 anos a 78 anos, com média de 47,39 anos. O tabagismo foi encontrado em 51,6%. A carga tabágica média verificada foi de 40 maços-ano. O uso profissional da voz foi observado em 51,1% dos pacientes. O grau de acerto entre exame pré-operatório e achados cirúrgicos foi determinado pela medida estatística da acurácia. Este indicador variou de 71,8% a 99,3% dependendo da lesão da prega vocal avaliada. As medidas de sensibilidade e especificidade, bem como os valores preditivos positivos e negativos também foram calculados. Conclusões: o exame de telelaringoscopia apresentou grande confiabilidade através dos resultados de acurácia, sensibilidade, especificidade, valores preditivos positivos e negativos bem como através de comparação estatística com os achados à microcirurgia de laringe. As lesões benignas que mais estão relacionadas a resultados divergentes entre telelaringoscopia e microlaringoscopia de suspensão são os sulcos vocais em suas três formas de apresentação: sulco estria menor, sulco estria maior e sulco tipo bolsa