Audiological implications of COVID-19: an integrative literature review / Implicações audiológicas da COVID-19: revisão integrativa da literatura

ABSTRACT Purpose: to survey the national and international literature on the impacts of the coronavirus infection on the auditory system. Methods: an integrative review with search in the BIREME, PubMed, Scopus, and Web of Sciences databases. Inclusion criteria: articles in Portuguese and English whose subject was the coronavirus infection and its effects on the auditory system. Exclusion criteria: information from books and/or chapters, letters to editors, review articles, experience reports. The search strategy was based on the following combined descriptors, respectively in Portuguese and English: "Infecções por coronavírus", "Audição", "Perda auditiva", "Coronavirus infections", "Hearing", "Hearing Loss". Results: out of 43 articles found, two approached the issue. The first study assessed 20 patients that tested positive for COVID-19, though asymptomatic, who underwent pure-tone threshold audiometry and otoacoustic emissions. A significant increase in the auditory thresholds at high frequencies and a smaller response amplitude in the transient evoked otoacoustic emissions of those who tested positive for COVID-19 were observed when compared to that of controls. The second study reported the case of an asymptomatic 35-year-old COVID-19 female patient, who complained of otalgia and tinnitus, after being contaminated. The pure-tone threshold audiometry and tympanometry indicated mild unilateral (right ear) conductive hearing loss, with a type B tympanometric curve on that side. Conclusion: the studies included in this review showed different consequences of COVID-19 on hearing, with possible impairments on the sensory and mechanical structures of the auditory system. The knowledge of COVID-19 is limited, and further studies on its real impact on the auditory system are necessary.

RESUMO Objetivo: realizar um levantamento da literatura nacional e internacional sobre os impactos da infecção por coronavírus no sistema auditivo. Métodos: revisão integrativa com pesquisa nas bases de dados Bireme, PubMed, Scopus e Web of Sciences. Critérios de inclusão: artigos em português e em inglês que tinham como tema a infecção por coronavírus e seus efeitos no sistema auditivo. Critérios de exclusão: informações de livros e/ou capítulos, cartas ao editor, artigos de revisões e de relatos de experiência. Para a estratégia de busca, utilizou-se a combinação dos descritores em português e em inglês, respectivamente: "Infecções por coronavírus", "Audição", "Perda auditiva", "Coronavirus infections", "Hearing", "Hearing Loss". Resultados: dos 43 artigos encontrados, dois abordaram o tema proposto. O primeiro estudo avaliou 20 pacientes que testaram positivo para COVID-19, porém assintomáticos, esses realizaram audiometria tonal liminar e emissões otoacústicas. Observou-se como resultado um aumento significativo dos limiares auditivos nas altas frequências e menor amplitude de resposta no exame de emissões otoacústicas evocadas por estímulo transiente, quando comparados ao grupo controle. O segundo estudo relatou o caso de uma paciente de 35 anos de idade com COVID-19 assintomática, que apresentou queixa de otalgia e zumbido após a contaminação. A audiometria tonal liminar e timpanometria indicaram perda auditiva do tipo condutiva de grau leve unilateral à direita com curva timpanométrica do tipo B deste lado. Conclusão: os estudos incluídos mostraram diferentes repercussões da COVID-19 na audição, com possíveis acometimentos nas estruturas sensoriais e mecânicas do sistema auditivo. O conhecimento sobre a COVID-19 é limitado e mais estudos primários sobre seu real impacto no sistema auditivo são necessários.

Severe Dizziness Related to Postural Instability, Changes in Gait and Cognitive Skills in Patients with Chronic Peripheral Vestibulopathy

Abstract Introduction Peripheral vestibular disorders can lead to cognitive deficits and are more common in elderly patients. Objective To evaluate and correlate cognitive, balance and gait aspects in elderly women with chronic peripheral vestibular dizziness, and to compare them with elderly women without vestibular disorders. Methods Twenty-two women presenting peripheral vestibular dizziness episodes for at least six months participated in the study. The individuals were categorized by dizziness severity level: moderate (n = 11) or severe (n = 11). The control group (n = 11) included women showing no vestibulopathy, light-headedness or dizziness. Cognitive assessments and semi-static and dynamic balance assessments were performed with the Balance Master (Neurocom International, Inc., Clackamas, OR), while the Dizziness Handicap Inventory provided a score for the severity of the symptoms. The groups were submitted to statistics of inference and correlation between cognitive, balance and stability variables. Results The group with severe dizziness showed higher sway speed of the center of pressure in the anteroposterior direction, smaller step length, and slower gait than the control group. Regarding the cognitive variables, the group with severe dizziness symptoms presented significant correlations with stability and gait variables. Conclusion The relationship between cognitive aspects, balance and gait was stronger in women with severe dizziness than in those with no vestibulopathy.

Gunshot injury to spine: An institutional experience of management and complications from a developing country / 中华创伤杂志(英文版)

PURPOSE@#Gunshot wounds are the second leading cause of spinal cord injuries. Surgical intervention for gunshot injury to the spine carries a high rate of complications. There is a scarcity of data on civilian gunshot injuries to the spine in Pakistan. Approximately 60 cases over the last 10 years have been recoded, with unusual presentation and neurological recovery. Thus it is imperative to fill this gap in data, by reviewing cases of civilian gunshot injuries to spine presenting at a tertiary care hospital (Aga Khan University Hospital, Karachi).@*METHODS@#This is a retrospective cohort study. Patients of all ages who presented to the emergency department of Aga Khan University Hospital, with gunshot injuries to spine between January 2005 and December 2016 were included in the study. Data were collected on neurological status (American Spinal Injury Association score was used for the initial and follow-up neurological assessment), extent of cord transection, motor and sensory deficits. The patients were further grouped into those with cord transection, and those with fractures of the bony spine but an intact spinal cord. These patients were then followed and the outcomes were recorded.@*RESULTS@#A total of 40 patients were identified. The mean ± SD of patients age was (30.9 ± 9.5) years. Of the 40 patients with gunshot wounds, 31 had the medical imaging performed at the facility, and hence they were included in this categorization. The remaining 9 patients were excluded from this additional grouping. Thirteen patients were managed surgically and 27 patients underwent the conservative management. The mean ± SD of follow-up was (8.7 ± 7.2) months. In our study, the thoracic spine was the most commonly injured region in gunshot injuries. Of the 31 patients with medical imaging performed at our institute, 17 (54.8%) had cord transection, of whom 8 (47%) ultimately developed paraplegia.@*CONCLUSION@#The prognosis of gunshot injuries to the spine can be varied depending on whether the spinal cord is intact or transected. This will help healthcare providers to plan the further management of the patient and counsel them accordingly.

Multidisciplinary protocol for the management of fibromyalgia associated with imbalance. Our experience and literature review

SUMMARY OBJECTIVE We reported our multidisciplinary protocol for the management of fibromyalgia associated with imbalance. Our aim was to verify the effectiveness of a proprioceptive training program as a complementary therapy for a traditional protocol of education, mindfulness, and exercise training for the management of fibromyalgia associated with imbalance. METHODS Retrospective cohort study on 84 women, with primary fibromyalgia associated to imbalance. A group of patients performed traditional exercise training; in a second group the training was supplemented with proprioception exercises. Each session lasted from 40 to 60 minutes and was performed three times a week for 12 weeks. RESULTS After three months of training and eight months after the end of the training, the balance evaluation revealed significant differences in the comparison of the Timed Up and Go test, Berg Balance Scale, and Tinetti scale with the baseline, there was a better improvement in the proprioceptive training group (p<0.05). A reduction in pain and improvement in functional and muscular performance and quality of life were observed in both groups (p<0.05), but with no significant differences between them in the Numeric Pain Rating Scale, Fibromyalgia Impact Questionnaire, and Short Form Health Survey (p>0.05). Fifteen months after the end of the program, the effects of training were not maintained. CONCLUSION The present study revealed that training supplemented with proprioception exercises has beneficial effects on clinical findings and improves balance in patients with fibromyalgia, even if the positive results did not persist after the interruption of the rehabilitative program in the long term.

RESUMO OBJETIVO Relatamos nosso protocolo multidisciplinar para o manejo da fibromialgia associada ao desequilíbrio. Nosso objetivo foi verificar a eficácia do programa de treinamento proprioceptivo como terapia complementar de um protocolo tradicional (exercícios aeróbicos, de resistência e flexibilidade). MÉTODOS Estudo retrospectivo em 84 mulheres com fibromialgia primária associada a desequilíbrio. Um grupo de pacientes realizou o treinamento tradicional; em um segundo grupo o treinamento foi complementado com exercícios de propriocepção. Cada sessão durou de 40 a 60 minutos e foi realizada três vezes por semana durante 12 semanas. RESULTADOS Após três meses de treinamento e oito meses após o término do treinamento, a avaliação do equilíbrio revelou diferenças significativas nos testes Timed Up and Go, Escala de Equilíbrio de Berg e Escala de Tinetti em comparação com a linha de base, com uma melhora maior no grupo de treinamento proprioceptivo (p<0,05). Redução da dor e melhora do desempenho funcional e muscular e da qualidade de vida foram observadas em ambos os grupos (p<0,05), mas sem diferenças significativas entre eles na Escala Numérica de Dor, Fibromyalgia Impact Questionnaire e Short Form Health Survey (p>0,05). Quinze meses após o final do programa, os efeitos do treinamento não foram mantidos. CONCLUSÃO O presente estudo revelou que o treinamento suplementado com exercícios de propriocepção tem efeitos benéficos sobre os achados clínicos e melhora o equilíbrio em pacientes com fibromialgia, mesmo que os resultados positivos não tenham persistido após a interrupção do programa de reabilitação no longo prazo.

Alterações sensoriais em respiradores orais: revisão sistemática baseada no método prisma / Sensory changes in mouth breathers: systematic review based on the prisma method

RESUMO Objetivo: Revisar, na literatura, estudos que abordem alterações nos sistemas sensoriais apresentadas por respiradores orais. Fonte de dados: A busca foi realizada nas bases de dados PubMed, BIREME, LILACS, Web of Science e Scopus. A busca foi realizada independentemente por dois pesquisadores, seguindo os critérios de seleção. Foram selecionados artigos originais que abordaram a respiração oral e as alterações nos sistemas sensoriais publicados nos idiomas português, inglês e espanhol. Os artigos de revisão da literatura, as dissertações, os capítulos de livros, os estudos de caso e os editoriais foram excluídos. Síntese dos dados: Foram encontrados 719 artigos, dos quais 663 foram excluídos pelo título e 22 pelo resumo. Trinta e quatro manuscritos foram analisados, dos quais 23 estavam repetidos e 8 foram excluídos pelo texto lido na íntegra. Assim, três artigos foram selecionados para esta revisão. Conclusões: A maioria dos estudos apresenta a ocorrência de alterações dos sistemas sensoriais em crianças respiradoras orais. Contudo, observa-se maior preocupação na avaliação da recepção sensorial. Além disso, a avaliação dos sistemas sensoriais foi realizada de forma não padronizada, o que pode ter acarretado resultados menos precisos na população estudada.

ABSTRACT Objective: To review, in the literature, information regarding changes in the sensory systems of mouth breathers. Data sources: The search was conducted in the following databases PubMed, BIREME, LILACS, Web of Science and Scopus. The search was independently carried out by two researchers, following the selection criteria. Original articles that approached mouth breathing and changes in sensory systems published in Portuguese, English and Spanish were published. Literature review of articles, dissertations, book chapters, case studies and editorials were excluded. Data synthesis: We found 719 articles. Among them, 663 were excluded by the title and 22 by the summary. Among the 34 analyzed manuscripts, 23 were repeated and 8 were excluded by reading the full text. Thus, 3 articles were selected for this review. Conclusions: Most studies presents the occurrence of changes in sensory systems in mouth breathing children. However, sensory reception is a matter of more concern. Besides, the evaluation of sensory systems was not standardized, which may have led to less precise results in the studied population.

Sensory abnormalities in children with autism spectrum disorder / Alterações sensoriais em crianças com transtorno do espectro do autismo

Abstract Objective: The clinical picture of children with autism spectrum disorder is characterized by deficits of social interaction and communication, as well as by repetitive interests and activities. Sensory abnormalities are a very frequent feature that often go unnoticed due to the communication difficulties of these patients. This narrative review summarizes the main features of sensory abnormalities and the respective implications for the interpretation of several signs and symptoms of autism spectrum disorder, and therefore for its management. Sources: A search was performed in PubMed (United States National Library of Medicine) about the sensory abnormalities in subjects (particularly children) with autism spectrum disorder. Summary of the findings: Sensory symptoms are common and often disabling in children with autism spectrum disorder, but are not specific for autism, being a feature frequently described also in subjects with intellectual disability. Three main sensory patterns have been described in autism spectrum disorder: hypo-responsiveness, hyper-responsiveness, and sensory seeking; to these, some authors have added a fourth pattern: enhanced perception. Sensory abnormalities may negatively impact the life of these individuals and their families. An impairment not only of unisensory modalities but also of multisensory integration is hypothesized. Conclusions: Atypical sensory reactivity of subjects with autism spectrum disorder may be the key to understand many of their abnormal behaviors, and thus it is a relevant aspect to be taken into account in their daily management in all the contexts in which they live. A formal evaluation of sensory function should be always performed in these children.

Resumo Objetivo: O quadro clínico de crianças com transtorno do espectro do autismo é caracterizado por déficits de interação social e comunicação, bem como por interesses e atividades repetitivos. As alterações sensoriais são uma característica muito frequente que geralmente não é percebida devido às dificuldades de comunicação desses pacientes. Nesta análise narrativa, resumimos as principais características de alterações sensoriais e as respectivas implicações para a interpretação de vários sinais e sintomas do transtorno do espectro do autismo e, portanto, para seu manejo. Fontes: Fizemos uma busca no PubMed (Biblioteca Nacional de Medicina dos Estados Unidos) sobre as alterações sensoriais em indivíduos (principalmente crianças) com transtorno do espectro do autismo. Resumo dos achados: As alterações sensoriais são comuns e geralmente invalidam as crianças com transtorno do espectro do autismo, porém não são específicas do autismo, sendo uma característica frequentemente descrita também em indivíduos com deficiência intelectual. Três principais padrões sensoriais foram descritos no transtorno do espectro do autismo: hiporreatividade, hiperreatividade e busca sensorial; a eles, alguns autores acrescentaram um quarto padrão: percepção aprimorada. As alterações sensoriais podem afetar negativamente a vida desses indivíduos e de suas famílias. Hipotetizamos uma deficiência não apenas das modalidades não sensoriais, mas também da integração multissensorial. Conclusões: A reatividade sensorial atípica de indivíduos com transtorno do espectro do autismo pode ser a chave para entender muitos de seus comportamentos anormais e, portanto, é um aspecto relevante para ser considerado em seu manejo diário em todos os contextos nos quais eles vivem. Sempre se deve fazer uma avaliação formal da função sensorial nessas crianças.

Fatores associados às alterações de equilíbrio em idosos residentes no município de São Paulo em 2006: evidências do Estudo Saúde, Bem-Estar e Envelhecimento (SABE) / Factors associated with balance disorders of elderly living in the city of São Paulo in 2006: evidence of the Health, Well-being and Aging (SABE) Study

RESUMO: Objetivo: O objetivo deste estudo foi investigar a influência dos fatores demográficos, de condições de saúde e de estilo de vida nas alterações do equilíbrio corporal dos idosos residentes no município de São Paulo em 2006. Métodos: O estudo foi desenvolvido com base em dados provenientes do Estudo Saúde,Bem-Estar e Envelhecimento (SABE). Foram selecionados todos os indivíduos com 60 anos e mais de idade, de ambos os sexos. A amostra considerada era de 1.226 indivíduos, representando 930.639 idosos. A variável dependente foi a alteração de equilíbrio corporal do idoso. Para mensurá-la utilizou-se parte do Short Physical Performance Battery (SPPB). As variáveis independentes foram classificadas em três grupos: demográficas, de condições de saúde e de estilo de vida. Para estimar a associação entre as alterações de equilíbrio com as variáveis demográficas, de saúde e de estilo de vida em idosos foi realizada uma análise de regressão logística binária múltipla. Resultados: Idade, dificuldades em pelo menos uma mobilidade e realização de atividade física regular exercem uma significativa influência no equilíbrio corporal dos idosos (p < 0,05). A idade foi o determinante mais fortemente relacionado. Ter idade entre 75 a 79 anos e 80 anos e mais aumenta em 3,77 e 5,31vezes a chance, respectivamente, de os idosos apresentarem alterações de equilíbrio em comparação às idades de 60 a 64 anos. Conclusão: Medidas preventivas e que visam reverter um quadro de instabilidade corporal devem ser preconizadas e incorporadas na agenda de atenção à saúde dos idosos.

ABSTRACT: Objective: To analyze the influence of demographic, health condition, and lifestyle factors on body balance disorders among elderly subjects living in the city of São Paulo, Brazil, in 2006. Methods: Thestudy was developed based on information provided by the Health, Well-being, and Aging (SABE) Study. Itincluded 60-year-old subjects, both men and women, or those over this age. The sample comprised 1,226 subjects that represented 930,639 elderly subjects. The dependent variable was the elderly's body balance disorder, which was measured using part of the Short Physical Performance Battery (SPPB). The independent variables were divided into three groups: demographic, health conditions, and lifestyle. The multiple binary logistic regression analysis was applied to estimate the association between balance disorders and demographic, health, and lifestyle variables in the elderly. Results: Age, difficulties in at least one mobility, and performance of regular physical activities showed a significant influence on the elderly's body balance (p < 0.05). Age was the strongest related determiner. Being aged 75-79 years and 80 years or more increased 3.77 and 5.31 times, respectively, the chances of the elderly subjects present balance disorders in comparison with the 60- to 64-years-old. Conclusion: Preventive measures that aim at reversing a body instability condition should be preconized and incorporated in the elderly's health-care schedule.

Unsteady walking as a symptom in type 2 diabetes mellitus: independent association with depression and sedentary lifestyle and no association with diabetic neuropathy

The purpose of this study was to look at the determinants of the unsteady walking (UW) symptom in patients with type 2 diabetes mellitus (T2DM) by defining if UW and/or the Diabetic Neuropathy Symptoms Score (DNSS) are associated with positive scores in Beck's Depression Inventory (BDI) and with a positive Michigan Neuropathy Screening Instrument score (MNSI). We evaluated 203 T2DM patients without visible gait disturbances. They were divided into UW (+) and UW (−) or DNSS (+) and DNSS (−) according to symptoms. We found a prevalence of 48.3% for UW (+) and of 63% for DNSS (+) in our sample. In univariate analysis, the presence of UW was significantly associated with waist circumference (P=0.024), number of comorbidities (P=0.012), not practicing physical exercise (P=0.011), positive BDI score (P=0.003), presence of neuropathic symptoms by the MNSI questionnaire (P<0.001), and positive diabetic neuropathy screening by MNSI (P=0.021). In multivariate analysis, UW (used as a dependent variable) was independently associated with a positive BDI score (P<0.001; 95%CI=1.01-1.03), T2DM duration (P=0.023; 95%CI=1.00-1.03), number of co-morbidities (P=0.032; 95%CI=1.01-1.37), and a sedentary lifestyle (P=0.025; 95%CI=1.06-2.5). The UW symptom and a positive DNSS are more closely related to a positive score for depression than to presence of neuropathy in T2DM.

Sudden motor and sensorial loss due to retroperitoneal hematoma during postoperative periods: a case report / Súbita perda sensitiva e motora devido a hematoma retroperitoneal durante os períodos de pós-operatório: relato de caso

Abstract A 68 year-old male patient was hospitalized for radical prostatectomy. He had no abnormal medical history including neurological deficit before the operation. Prior to general anesthesia, an epidural catheter was inserted in the L3-4 interspace for intraoperative and postoperative analgesia. After surgery for nine hours, he developed confusion and flaccid paralysis of bilateral lower extremities occurred. No pathology was detected from cranial computed tomography and diffusion magnetic resonance imaging no pathology was detected. His thoracic/lumbar magnetic resonance imaging. Intraabdominal pressure was shown to be 25 mmHg, and abdominal ultrasonography revealed progression in the inflammation/edema/hematoma in the perirenal region. The Bromage score was back to 1 in the right foot on the 24th hour and in the left foot on the 26th hour. Paraplegia developed in patients after epidural infusion might be caused by potentiated local anesthetic effect due to retroperitoneal hematoma and/or elevated intra-abdominal pressure.

Resumo Paciente do sexo masculino, 68 anos, hospitalizado para prostatectomia radical. O paciente não tinha história médica anormal, inclusive nem déficit neurológico, antes da operação. Antes da anestesia geral, um cateter peridural foi inserido no espaço intermédio L3-4 para analgesia no intra e pós-operatório. Após a cirurgia, que durou nove horas, o paciente desenvolveu confusão e paralisia flácida bilateral dos membros inferiores. Tomografia computadorizada de crânio e imagem de difusão por ressonância magnética não detectaram lesão. Os achados nas imagens de ressonância magnética torácica/lombar eram normais. A pressão intra-abdominal era de 25 mmHg e o ultrassom abdominal revelou progressão de inflamação/edema/hematoma na região perirrenal. O escore de Bromage voltou a 1 no pé direito na 24a hora e no pé esquerdo na 26a hora. A paraplegia desenvolvida nos pacientes após a infusão epidural pode ter sido causada por um efeito potencializado do anestésico local devido a hematoma retroperitoneal e/ou pressão intra-abdominal elevada.

Clinical and neurophysiological features of the hereditary neuropathy with liability to pressure palsy due to the 17p11. 2 deletion / Aspectos clínicos e neurofisiológicos de pacientes com a neuropatia hereditária com a susceptibilidade à pressão associada à deleção 17p11. 2

ABSTRACT The hereditary neuropathy with liability to pressure palsies (HNPP) is an autossomal dominant disorder manifesting recurrent mononeuropathies. Objective Evaluate its clinical and nerve conduction studies (NCS) characteristics, searching for diagnostic particularities. Method We reviewed the neurological manifestations of 39 and the NCS of 33 patients. Results Family history was absent in 16/39 (41%). The onset complaints were weakness in 24, pain in 6, sensory deficit in 5 and paresthesias in 4. Pain was seen in 3 other patients. The following neuropathy patterns were found: multiple mononeuropathy (26), mononeuropathy (7), chronic sensorimotor polyneuropathy (4), chronic sensory polyneuropathy (1) and unilateral brachial plexopathy (1). NCS showed a sensorimotor neuropathy with focal conduction slowing in 31, two had mononeuropathy and another brachial plexopathy. Conclusion HNPP presentation is variable and may include pain. The most frequent pattern is of an asymmetrical sensory and motor neuropathy with focal slowing at specific topographies on NCS.

RESUMO A neuropatia hereditária com susceptibilidade à pressão (HNPP) é uma doença autossômica dominante que manifesta mononeuropatias recorrentes. Objetivo Avaliar as características clínicas e os estudos da condução nervosa (ECN) procurando particularidades diagnósticas. Método Revisamos as características clínicas de 39 e os ECN de 33 pacientes. Resultados História familiar ausente em 16/39 (41%). As manifestações iniciais foram: fraqueza em 24, dor em 6, déficit sensitivo em 5 e parestesias em 4. Dor foi referida por outros 3 pacientes. Os seguintes padrões de neuropatia foram observados: mononeuropatia múltipla (26), mononeuropatia (6), polineuropatia sensitivo-motora (4), polineuropatia sensitiva (1) e plexopatia braquial unilateral (1). Os ECN mostraram uma neuropatia sensitivo-motora com redução focal da velocidade de condução em 31, dois tinham mononeuropatia e outro plexopatia braquial. Conclusão A apresentação da HNPP é variável e pode incluir dor. O padrão mais frequente é o de uma neuropatia sensitivo-motora assimétrica com alentecimentos focais da condução em topografias específicas nos ECN.

Clinicopathologic Analysis of Proton Pump Inhibitor-Responsive Esophageal Eosinophilia in Korean Patients

BACKGROUND/AIMS: Proton pump inhibitor-responsive esophageal eosinophilia (PPI-REE) is a newly recognized form of eosinophilic esophagitis (EoE) that responds to PPI therapy. It remains unclear whether PPI-REE represents a subphenotype of gastroesophageal reflux disease, a subphenotype of EoE, or its own distinct entity. The aim was to evaluate the clinicopathologic features of PPI-REE. METHODS: Six patients were diagnosed with PPI-REE based on symptoms, endoscopic abnormalities, esophageal eosinophilia with > or =15 eosinophils/high-power field, and a response to PPI treatment. Symptoms and endoscopic and pathological findings were evaluated. RESULTS: The median follow-up duration was 12 months. Presenting symptoms included dysphagia, heartburn, chest pain, foreign body sensation, acid reflux, and sore throat. All patients had typical endoscopic findings of EoE such as esophageal rings, linear furrows, nodularity, and whitish plaques. Three patients had a concomitant allergic disorder, and one had reflux esophagitis. Four patients exhibited elevated serum IgE, and five had positive skin prick tests. All patients experienced symptomatic resolution within 4 weeks and histologic resolution within 8 weeks after starting PPI therapy. There was no symptomatic recurrence. CONCLUSIONS: PPI therapy induced rapid resolution of symptoms and eosinophil counts in patients with PPI-REE. Large-scale studies with long-term follow-up are warranted.

Analysis of corneal esthesia in patients undergoing photorefractive keratectomy / Análise da estesia corneal em pacientes submetidos à ceratectomia fotorrefrativa

ABSTRACT Purpose: To quantitatively analyze corneal esthesia in patients undergoing photorefractive keratectomy (PRK) surgery. Methods: Forty-five patients selected for PRK in one eye underwent corneal esthesia using a Cochet-Bonnet esthesiometer preoperatively and 30 and 90 days postoperatively. Patients with a refractive diopter error of 4 or greater received intraoperative 0.02% mitomycin C for 20 s. Results: Twenty-four (53.3%) of the 45 eyes received intraoperative 0.02% mitomycin. Decreased sensitivity was observed on postoperative day 30. By postoperative day 90, corneal esthesia had normalized but remained 14.9% lower than preoperative levels. In the mitomycin group, no recovery of corneal esthesia to normal sensitivity levels was observed. The mean esthesiometer level was 39.2 mm on postoperative day 90 (P<0.001). Conclusions: The results of the present study demonstrate recovery of corneal esthesia to normal levels at 90 days postoperatively in patients who did not receive mitomycin C. In patients administered mitomycin C, a 23.59% reduction in the corneal touch threshold was observed compared with preoperative levels indicating a failure of recovery to normal levels.

RESUMO Objetivo: Análise quantitativa da estesia corneal em pacientes submetidos à cirurgia refrativa (PRK). Métodos: Estudo prospectivo, longitudinal e intervencionista, analisando 45 olhos com estesiômetro de Cochet Bonnet no período pré-operatório, no 30º dia após a cirurgia e no 90º dia após cirurgia refrativa. Os pacientes com erro refracional maior ou igual a 4 dioptrias, foram submetidos ao uso de mitomicina 0,02%, por período de 20 segundos no intraoperatório. Resultados: Observou-se diminuição da sensibilidade corneal no 30º dia em todos os olhos, retornando a níveis próximo ao normal no 90º dia, apresentando redução média final de 14,9%. Mitomicina C foi utilizada em 24 (53,3%) dos 45 olhos examinados. No grupo que recebeu mitomicina C, não houve recuperação da estesia normal (média de 39,2 mm) (p<0,001), após 90 dias de cirurgia. Conclusão: Com base nos resultados obtidos, verificamos que ocorreu recuperação da estesia corneal próximo ao normal 90 dias após a cirurgia, porém inferior aos valores iniciais, no grupo sem o uso de mitomicina C intraoperatória. No entanto, no grupo submetido ao uso de mitomicina, não houve a recuperação da sensibilidade corneal a níveis normais, mesmo após o período de 90 dias.

Atorvastatin protects GABAergic and dopaminergic neurons in the nigrostriatal system in an experimental rat model of transient focal cerebral ischemia / La atorvastatina protege las neuronas gabérgicas y dopaminérgicas del sistema nigroestriatal en un modelo experimental de isquemia cerebral focal transitoria en ratas

Introduction: Cerebral ischemia is the third leading cause of death and the primary cause of permanent disability worldwide. Atorvastatin is a promising drug with neuroprotective effects that may be useful for the treatment of stroke. However, the effects of atorvastatin on specific neuronal populations within the nigrostriatal system following cerebral ischemia are unknown. Objective: To evaluate the effects of atorvastatin on dopaminergic and GABAergic neuronal populations in exofocal brain regions in a model of transient occlusion of the middle cerebral artery. Materials and methods: Twenty-eight male eight-week-old Wistar rats were used in this study. Both sham and ischemic rats were treated with atorvastatin (10 mg/kg) or carboxymethylcellulose (placebo) by gavage at 6, 24, 48 and 72 hours post-reperfusion. We analyzed the immunoreactivity of glutamic acid decarboxylase and tyrosine hydroxylase in the globus pallidus, caudate putamen and substantia nigra. Results: We observed neurological damage and cell loss in the caudate putamen following ischemia. We also found an increase in tyrosine hydroxylase immunoreactivity in the medial globus pallidus and substantia nigra reticulata, as well as a decrease in glutamic acid decarboxylase immunoreactivity in the lateral globus pallidus in ischemic animals treated with a placebo. However, atorvastatin treatment was able to reverse these effects, significantly decreasing tyrosine hydroxylase levels in the medial globus pallidus and substantia nigra reticulata and significantly increasing glutamic acid decarboxylase levels in the lateral globus pallidus. Conclusion: Our data suggest that post-ischemia treatment with atorvastatin can have neuro-protective effects in exofocal regions far from the ischemic core by modulating the GABAergic and dopaminergic neuronal populations in the nigrostriatal system, which could be useful for preventing neurological disorders.

Introducción. La isquemia cerebral es la tercera causa de muerte y la primera de discapacidad permanente en el mundo. La atorvastatina es un fármaco neuroprotector prometedor para el tratamiento de la apoplejía; sin embargo, su acción sobre las poblaciones neuronales del sistema nigroestriatal después de la isquemia aún se desconoce. Objetivo. Evaluar el efecto de la atorvastatina sobre poblaciones gabérgicas y dopaminérgicas en regiones exofocales en un modelo de oclusión transitoria de la arteria cerebral media. Materiales y métodos. Se utilizaron 28 ratas Wistar macho de ocho semanas de edad. Los ejemplares con isquemia simulada y los ejemplares sometidos a isquemia fueron tratados con atorvastatina (10 mg/kg) y carboximetilcelulosa (placebo) administrados por medio de sonda a las 6, 24, 48 y 72 horas después de la reperfusión. Se analizó la inmunorreacción de la descarboxilasa del ácido glutámico y de la tirosina hidroxilasa en el globo pálido, el putamen caudado y la sustancia negra. Resultados. Los datos confirmaron el daño neurológico y la pérdida celular en el putamen caudado. Se incrementó la inmunorreacción de la tirosina hidroxilasa en el globo pálido medial y la sustancia negra pars reticulata , disminuyendo la inmunorreacción de la descarboxilasa del ácido glutámico en el globo pálido lateral de los animales isquémicos tratados con placebo; sin embargo, el tratamiento con atorvastatina pudo revertirla, lo que logró una disminución significativa de la tirosina hidroxilasa en el globo pálido medial y la sustancia negra pars reticulata y aumentando los niveles de descarboxilasa del ácido glutámico en el globo pálido lateral. Conclusión. Nuestros datos sugieren que la atorvastatina en el tratamiento posterior a la isquemia ejerce neuroprotección en las zonas exofocales, modulando las poblaciones neuronales gabérgicas y dopaminérgicas del sistema nigroestriatal, lo que podría prevenir trastornos neurológicos.

Processamento cognitivo e equilíbrio corporal em idosos com disfunção vestibular / Cognitive processing and body balance in elderly subjects with vestibular dysfunction

Idosos com disfunção vestibular crônica podem apresentar alteração do equilíbrio corporal e disfunção cognitiva. OBJETIVO: Avaliar a relação entre o processamento cognitivo e o equilíbrio corporal de idosos com vestibulopatia periférica crônica. Forma de Estudo: Transversal. MATERIAL E MÉTODO: O estudo incluiu 76 pacientes (> 60 anos), com disfunção vestibular periférica crônica, com queixa de tontura há mais de três meses. Os testes utilizados para investigar o equilíbrio corporal foram: Berg Balance Scale (BBS), Dynamic Gait Index (DGI), Timed Up and Go Test (TUGT) e Timed Up Go Test modificado (TUGTm) e para a avaliação cognitiva utilizou-se Mini Exame do Estado Mental (MEEM), Teste do Relógio (TR) e Teste de Fluência Verbal (FV). RESULTADOS: A média etária dos pacientes foi de 69,03 anos (DP=6,21 anos), sendo a maioria feminina (82,9%). Observou-se correlação negativa significante entre o MEEM e TUGT (ρ=-0,312; p=0,01), MEEM e TUGTm (ρ=-0,306; p=0,01), FV e TUGT (ρ=-0,346; p=0,01) e FV e TUGTm (ρ=-0,536; p=0,01); e correlação positiva significante entre TR e BBS (ρ=0,343; p=0,01), TR e DGI (ρ=0,298; p=0,01), FV e BBS (ρ=0,299; p=0,01), e FV e DGI (ρ=0,306; p=0,01). CONCLUSÃO: Idosos com vestibulopatia periférica crônica com pior desempenho no equilíbrio corporal funcional apresentam prejuízo nas habilidades cognitivas.

Abnormal body balance and cognitive dysfunction may develop in elderly patients with chronic vestibular dysfunction. AIM: To evaluate the relationship between cognitive processing and body balance in elderly patients with chronic peripheral vestibular disease. Type of Study: Cross-sectional. METHODS: Seventy-six patients (> 60 years) with chronic peripheral vestibular dysfunction and dizziness for more than three months were enrolled. The tests for investigating body balance were: the Berg Balance Scale (BBS), Dynamic Gait Index (DGI), Timed Up and Go Test (TUGT) Timed Up and Go Test modified (TUGTm); the Mini Mental State Examination (MMSE), Test Clock (RT,) and Verbal Fluency Test (VF) were applied for assessing cognition. RESULTS: The mean age was 69.03 years (SD=6.21 years); most were female (82.9%). There was a significant negative correlation between the MMSE and the TUGT (ρ=-0.312; p=0.01), MMSE and TUGTm (ρ=-0.306; p=0.01), FV and TUGT (ρ=-0.346; p=0.01), and FV and TUGTm (ρ=-0.536; p=0.01); there was a significant positive correlation between the TR and BBS (ρ=0.343; p=0.01), TR and DGI (ρ=0.298; p=0.01), FV and BBS (ρ=0.299; p=0.01), and FV and DGI (ρ=0.306; p=0.01). CONCLUSION: Elderly patients with chronic peripheral vestibular disease and worse performance in body balance tests have functional impairment in cognitive skills.

Correlação entre equilíbrio corporal e capacidade funcional de idosos com disfunções vestibulares crônicas / Correlation between the body balance and functional capacity from elderly with chronic vestibular disorders

As doenças vestibulares são frequentes na população idosa, resultando, principalmente, em tontura e desequilíbrio corporal, sintomas que podem prejudicar as atividades de vida diária. OBJETIVO: Estudar a correlação entre equilíbrio corporal e a capacidade funcional e a comparação entre risco de queda, ocorrência de queda e a capacidade funcional de idosos com disfunções vestibulares crônicas. MATERIAL E MÉTODO: Forma de estudo transversal, clínico e experimental com 50 idosos, de 60 a 86 anos, com vestibulopatias periféricas crônicas. Estes idosos foram submetidos à avaliação do equilíbrio por meio do Dynamic Gait Index (DGI) e à avaliação da capacidade funcional, por meio da Medida de Independência Funcional (MIF). Os dados obtidos foram submetidos ao teste de correlação de Spearman e aos de comparação de Mann-Whitney e Kruskal-Wallis, sendo considerado α=5 por cento (0,05). RESULTADOS: Verificou-se correlação positiva entre o escore total do DGI e todas as pontuações da MIF, especialmente a MIF total (r=0,447; p<0,001), prejuízo da capacidade funcional em idosos com maior risco de queda (p<0,001). CONCLUSÃO: Há correlação entre equilíbrio corporal e capacidade funcional em idosos com vestibulopatias periféricas, isto é, quanto melhor o equilíbrio, melhor a capacidade funcional. Além disso, uma pior capacidade funcional aumenta o risco de queda nestes indivíduos.

Vestibular disorders are common among the elderly, mainly resulting in dizziness and imbalance - symptoms which can impact daily routine activities. AIM: To study the correlation between body balance and functional capacity and a comparison of risk of falls, actual falls and the functional capacity of the elderly with chronic vestibular dysfunctions. MATERIALS AND METHODS: A cross-sectional, clinical and experimental study with 50 senior citizens - 60 to 86 years, with chronic peripheral vestibular dysfunction. These participants underwent body balance assessment by the Dynamic Gait Index (DGI) and functional capacity assessment by the Functional Independence Measure (FIM). The data was tested using the Spearman correlation and comparison tests, Mann-Whitney and Kruskal- Wallis, being α=5 percent (0.05). RESULTS: There was a significant correlation between the total DGI score and all FIM scores, especially the total score (r=0.447; p<0.001) and loss of functional capacity in elderly patients with the highest risk of falling (p<0.001). CONCLUSION: There is a positive correlation between body balance and functional capacity in elderly patients with peripheral vestibular disorders, that is: the better the balance, the better the individual's functional capacity. In addition, a worse functional capacity increases the individual's risk of falling.

Neuroimaging in stroke and non-stroke pusher patients / Análise de neuroimagens de pacientes com síndrome do empurrador decorrente de AVC e outras etiologias

Pusher behavior (PB) is a disorder of postural control affecting patients with encephalic lesions. This study has aimed to identify the brain substrates that are critical for the occurrence of PB, to analyze the influence of the midline shift (MS) and hemorrhagic stroke volume (HSV) on the severity and prognosis of the PB. We identified 31 pusher patients of a neurological unit, mean age 67.4±11.89, 61.3 percent male. Additional neurological and functional examinations were assessed. Neuroimaging workup included measurement of the MS, the HSV in patients with hemorrhagic stroke, the analysis of the vascular territory, etiology and side of the lesion. Lesions in the parietal region (p=0.041) and thalamus (p=0.001) were significantly more frequent in PB patients. Neither the MS nor the HSV were correlated with the PB severity or recovery time.

A síndrome do empurrador (SE) é um distúrbio de controle postural que acomete indivíduos com lesões encefálicas. Os objetivos deste estudo foram identificar as estruturas encefálicas envolvidas na SE, analisar a influência dos desvios de linha média (DLM) e volume do hematoma (VH) na gravidade e duração da SE. Dentre os pacientes internados na enfermaria de neurologia, foram identificados 31 pacientes com SE, idade média 67,4±11,89, 61,3 por cento homens. Foram realizados exames neurológico e funcional. As análises das neuroimagens incluíram medidas de VH em pacientes com doença cerebrovascular (DC) hemorrágica, DLM, análise do território vascular, etiologia e lado da lesão. Lesão nas regiões parietal (p=0,041) e talâmica (p=0,001) foram significativamente mais frequentes nos pacientes com SE. Não foi observada correlação dos DLM e volume do hematoma com a gravidade e duração da SE.

Vestibular rehabilitation with biofeedback in patients with central imbalance / Reabilitação vestibular por biofeedback no desequilíbrio corporal de origem central

Central Nervous System disorders may cause important functional unbalance in the maintenance of balance and posture. There is no effective rehabilitation for these symptoms until now. OBJECTIVE: The aim of this paper is to evaluate the use of tongue electrotactile stimulation on patients with central imbalance using BrainPort. MATERIALS AND METHODS: This is a prospective case series study. We evaluated 8 patients with central imbalance, 6 men and 2 women, with mean age of 67.75 years. The patients were submitted to Computed Dynamic Posturography (CDP) and then received 18 sessions of electrotactile stimulation by BrainPort® device for 20 minutes, twice a day. Then they were submitted to a new CDP test and to a self-perception scale to assess symptom remission, partial improvement and no improvement at all. RESULTS: 75 percent of the patients reported being more stable. There was no improvement in the balance control of the mass center in these patients. CONCLUSION: The patients were able to use the electrotactile stimulus to improve their balance control.

As lesões do Sistema Nervoso Central (SNC) determinam importantes prejuízos funcionais na manutenção do equilíbrio e da postura. A reabilitação vestibular e a fisioterapia oferecem benefícios limitados nesses casos. OBJETIVO: Avaliar a resposta de pacientes portadores de desequilíbrio de origem central à estimulação eletrotáctil da língua por meio do BrainPort®. CASUÍSTICA E MÉTODO: O estudo é prospectivo e configura uma série de casos. Foram avaliados 8 pacientes portadores de desequilíbrio de origem central, 6 homens e 2 mulheres com média de idade de 67,75 anos. Os pacientes foram submetidos à posturografia dinâmica computadorizada (PDC) e submetidos ao treinamento pelo BrainPort®. em duas sessões diárias de 20 minutos, perfazendo um total de 18 sessões. Foram então reavaliados pela PDC e a uma escala análogo visual, que compreendeu remissão dos sintomas, melhora parcial e sem melhora. RESULTADO: 75 por cento dos pacientes referiram melhora subjetiva. Não houve diferença significante nos parâmetros avaliados da PDC, mas foi observada a melhora do controle postural do centro de massa nesses mesmos pacientes. CONCLUSÃO: Os pacientes puderam utilizar o estímulo eletrotáctil para melhorar o seu controle postural.

Abnormal sensory integration affects balance control in hemiparetic patients within the first year after stroke

OBJECTIVE: Impairments in balance can be a consequence of changes in the motor, sensory, and integrative aspects of motor control. Abnormal sensory reweighting, i.e., the ability to select the most appropriate sensory information to achieve postural stability, may contribute to balance impairment. The Sensory Organization Test is a component of Computerized Dynamic Posturography that evaluates the impact of visual, vestibular, and somatosensory inputs, as well as sensory reweighting, under conditions of sensory conflict. The aim of this study is to compare balance control in hemiparetic patients during the first year post-stroke and in age-matched neurologically normal subjects using the Berg Balance Scale and Computerized Dynamic Posturography. METHODS: We compared the Berg Balance Scale and Sensory Organization Test scores in 21 patients with hemiparesis after first-ever ischemic stroke and in 21 age-matched, neurologically normal subjects. An equilibrium score was defined for each Sensory Organization Test condition. RESULTS: Berg Balance Scale scores were significantly lower in the patients than in the neurologically normal subjects. Equilibrium scores were significantly lower in the patients than in the neurologically normal subjects for those Sensory Organization Test conditions that did not provide appropriate somatosensory information and under conditions of sensory conflict. A history of falls was more frequent in patients with lower equilibrium scores. CONCLUSION: During the first year after a stroke, defective sensory reweighting significantly impacts balance control in hemiparetic patients. These results are important for the planning of effective rehabilitation interventions.

Temblor ortostático como causa de inestabilidad postural en enfermedad de Parkinson: Caso clínico / Orthostatic tremor causing postural instability in Parkinson disease: Report of one case

Parkinson disease (PD) is a movement disorder characterized clinically by the variable combination of rigidity, bradykinesia, rest tremor and postural instability. Usually postural instability is a late-onset manifestation and is frequently associated with axial manifestations and with a poor prognosis. We report a 67-year-old female with orthostatic tremor as the etiology of her postural instability. The patient was treated with increasing doses of clonazepam, reaching 2 mg/day, and levodopa. There was an improvement of postural instability with a good response of parkinsonian symptoms.