Somnolencia diurna excesiva identificada con la escala de Epworth en gestantes que acuden a consulta prenatal ambulatoria / Excessive daytime sleepiness identified with the Epworth scale in pregnant women attending an outpatient prenatal consultation

INTRODUCCIÓN: Durante el embarazo se reportan a menudo trastornos del sueño, pero son poco explorados en el control prenatal. El objetivo fue estimar la frecuencia e identificar los factores asociados a somnolencia diurna excesiva (SDE) en gestantes de bajo riesgo obstétrico que acudieron a consulta prenatal. MÉTODO: Estudio transversal dentro del proyecto «Salud biopsicosocial en gestantes», aprobado por el comité de ética de la Clínica Santa Cruz de Bocagrande, Cartagena, Colombia. Se estudiaron mujeres con 12 o más semanas de gestación. Se aplicó un formulario que incluía las escalas de somnolencia diurna de Epworth (ESE), de estrés percibido de 10 ítems (EPP-10) y revisada de depresión del Centro de Estudios Epidemiológicos (CESD-R10). Se realizó regresión logística ajustada y no ajustada de SDE con las otras escalas y variables cualitativas. Se buscó correlación entre variables cuantitativas y la escala de Epworth. Se consideró significativo p < 0,05. RESULTADOS: Se estudiaron 683 mujeres de 28,3 ± 6,3 años y 31,5 ± 6,9 semanas de gestación. Puntuación en la escala de Epworth: 3,82 ± 3,45. En el 4,9% se identificó SDE: 50% leve, 32,2% moderada y 17,6% importante. No se observó en el primer trimestre de gestación y la frecuencia fue similar en los otros; la SDE importante solo se observó en el tercer trimestre. Depresión: odds ratio [OR]: 3,69, intervalo de confianza del 95% [IC95%]:1,83-7,43. Anemia: OR 3,10, IC95%:1,50-6,38. Fatiga: OR 3,22, IC95%:1,23-8,44. Nerviosismo: OR 2,49, IC95%:1,22-5,12. Estrés: OR: 2,38, IC95%:1,12-5,05. Gran paridad: OR: 2,64, IC95%: 1,01-6,89. Trabajar fuera de casa: OR: 2,33, IC95%: 1,05-5,15. Todas estas variables se asociaron con SDE. En el modelo ajustado, la anemia (OR: 3,05, IC95%: 1,44-6,45) y la depresión (OR: 2,72, IC95%: 1,26-5,85) conservaron la asociación. Se observó correlación positiva, despreciable y estadísticamente significativa, de la ESE con la CESD-R10 y con la EPP-10; y ausencia de correlación con la edad materna, la edad gestacional, el número de abortos y el número de cesáreas. CONCLUSIONES: En una de cada 20 gestantes de bajo riesgo obstétrico se identificó SDE, y varias situaciones biopsicosociales se asociaron con mayor presencia.

INTRODUCTION: Sleep disturbances are constantly reported during pregnancy, although they are not often taken care of in prenatal care. The aim was to estimate the regularity and identify factors associated with excessive daytime sleepiness (EDS) in pregnant women at low obstetric risk who attended prenatal consultation. METHOD: Cross-sectional study belonging to the project “Biopsychosocial health in pregnant women”, approved by the ethics committee of the Santa Cruz de Bocagrande Clinic, Cartagena, Colombia. Pregnant women with 12 or more weeks of gestation were studied. A form including: Epworth Daytime Sleepiness Scale, 10-item Perceived Stress and the Revised Depression Scale of the Centre for Epidemiological Studies was applied. Adjusted and unadjusted logistic regression was performed between EDS with the other scales and qualitative variables. In addition, correlation between quantitative variables and the Epworth scale. P<0.05 was significant. RESULTS: 683 pregnant women were studied, maternal age 28.3 ± 6.3 years and gestational age 31.5±6.9 weeks. Epworth Scale score: 3.82 ± 3.45. EDS was identified in 4.9%, 50% mild, 32.2% moderate and 17.6% severe. It was not observed in the first gestational trimester and the frequency was similar in the others, severe EDS only in the third trimester. Depression OR: 3.69 [95% CI: 1.83-7.43], anemia OR: 3.10 [95% CI: 1.50-6.38], fatigue OR: 3.22 [95% CI: 1.23-8.44], nervousness OR: 2.49 [95% CI: 1.22-5.12, stress OR: 2.38 [95% CI: 1.12-5.05], high parity OR: 2.64 [95% CI: 1.01-6.89] and working outside the home OR: 2.33 [95% CI: 1.05-5.15, were associated with EDS. In the adjusted model, anemia OR: 3.05 [95% CI: 1.44-6.45] and depression OR: 2.72 [95% CI: 1.26-5.85] retained the association. CONCLUSIONS: In one out of every twenty low obstetric risk pregnant women EDS was identified and several biopsychosocial situations were associated with more presence.

Evaluación del riesgo de síndrome de apnea obstructiva del sueño y somnolencia diurna utilizando el cuestionario de Berlín y las escalas Sleep Apnea Clinical Score y Epworth en pacientes con ronquido habitual atendidos en la consulta ambulatoria / Risk assessment for Obstructive Sleep Apnea Syndrome and daytime sleepiness using Berlin questionnaire, and SACS and Epworth scales in outpatients with snoring attending consultation

Resumen Objetivos: Determinar la frecuencia de riesgo del Síndrome de Apnea Obstructiva del Sueño (SAOS) en pacientes atendidos en el consultorio externo de neumología de un hospital de referencia en Lima a través de los Cuestionarios de Berlín, Sleep Apnea Clinical Score (SACS) y la escala de Epworth. Métodos: Se realizó un estudio transversal en pacientes atendidos en los consultorios externos de neumología reclutando durante el período de enero a marzo de 2014 en forma prospectiva a aquellos pacientes que referían presentar ronquido habitual. Se determinó la frecuencia de riesgo de SAOS de acuerdo a cada una de las escalas evaluadas y sus factores asociados. Resultados: Se estudiaron 230 sujetos, 56,5% eran varones y el 43,5% mujeres, con una edad media de 50 ± 12 años. El 61,8%, 66,9% y 62,6% tenían riesgo moderado o alto para SAOS de acuerdo a las escalas de Epworth, SACS y Berlin respectivamente. El perímetro de cuello, circunferencia abdominal e índice de masa corporal fueron las características asociadas de manera más consistente con el riesgo de SAOS. La correlación entre las escalas de SACS y Berlin fue de 0,55, entre las escalas SACS y Epworth de 0,22 y entre Berlín y Epworth de 0,35 (p < 0,001 para todas las comparaciones). Conclusiones: El riesgo de SAOS y somnolencia diurna es elevado en pacientes roncadores atendidos en la consulta externa de neumología. Las escalas evaluadas presentan una correlación menor que lo esperada. Se requieren estudios a mayor escala y en población general que comparen el valor diagnóstico y pronóstico de estas escalas utilizando la polisomnografía como estándar de referencia.

Objectives: To determine the frequency of risk for the obstructive sleep apnea syndrome (OSA) through clinical predictors: Berlin Questionnaire, Sleep Apnea Clinical Score (SACS) and the degree of daytime sleepiness measured by Epworth scale. Material and Methods: A cross-sectional study was conducted among patients who reported snoring seen by pulmonology in the outpatient clinic between January and March 2014. Frequency of OSA was calculated according to the three clinical prediction rules. We also determine the characteristic associated with a high risk of OSA according to each prediction rule. Results: We recruited 230 participants, 56.5% were male, with a mean age of 50 ± 12 years. The risk of moderate or high risk for OSA was 61.8%, 66.9% and 62.6% according to Epworth somnolence scale, SACS and Berlin questionnaire, respectively. Neck circumference, abdominal circumference and body mass index were the characteristics more consistently associated with OSA risk. Correlation between SACS and Berlin prediction rules was 0.55, between SACS and Epworth scale was 0.22 and between Berlin and Epworth scale was 0.35 (p < 0.001 for all comparisons). Conclusions: There is a high risk for OSA among snoring patients attending respiratory outpatient clinic. The correlation between prediction rules evaluated was lower than expected. Larger studies in general populations using polysomnography as a reference standard are needed to clarify the diagnostic and prognostic value of OSA prediction rules.

Análise da sonolência diurna em adolescentes por meio da pediatric daytime sleepiness scale: revisão sistemática / Analysis of daytime sleepiniess in adolescents by the pediatric daytime sleepiness scale: a systematic review

RESUMO Objetivo: Revisar de modo sistemático a utilização da Pediatric Daytime Sleepiness Scale (PDSS) na análise da sonolência diurna em crianças e adolescentes. Fontes de dados: Foram consultadas as bases de dados eletrônicas PubMed e SciELO, no período delimitado entre 2003 e 2015. Como critério de inclusão, foram considerados estudos em inglês, espanhol e português; artigos originais de qualquer tipo de escopo, com amostra de crianças e/ou adolescentes e que utilizaram a PDSS. Foram excluídos artigos duplicados, sem relação com o tema, com outra população investigada, bem como aqueles em que os pais responderam o instrumento pelos seus filhos. Para encontrar o material dentro desses critérios, foram utilizados nas buscas os seguintes termos: "Daytime sleepiness" AND "adolescents" e "Day time sleepiness" AND "children". Além disso, utilizou-se o descritor "Pediatric Daytime Sleepiness Scale" para fazer uma filtragem mais específica. Síntese dos dados: Inicialmente, identificaram-se 986 pesquisas relacionadas à sonolência diurna. Considerando os critérios de inclusão, foram analisados 26 estudos compostos por 18.458 sujeitos com idades de 0 a 37 anos que responderam à PDSS. A pontuação da escala da sonolência diurna variou de 6,7±0,6 a 25,7±4. Em geral, todos os estudos incluídos investigaram, além da sonolência diurna, outras variáveis do sono, como: duração, qualidade, higiene ou distúrbios do sono (narcolepsia e cataplexia), patologias respiratórias, neurológicas e do desenvolvimento. Conclusões: Verificou-se moderada utilização da PDSS para avaliar a sonolência diurna. Esse instrumento permite o acompanhamento de fatores que influenciam a sonolência diurna excessiva em crianças e adolescentes.

ABSTRACT Objective: To systematically review the use of the Pediatric Daytime Sleepiness Scale (PDSS) in the analysis of daytime sleepiness in children and adolescents. Data source: The electronic databases PubMed and SciELO were consulted between 2003 and 2015. As inclusion criterion, studies were considered in English, Spanish and Portuguese, original articles of any type of design, articles with a sample of children and/or adolescents, articles that used the PDSS. Duplicate articles, articles with no relation to the theme, articles with another investigated population, and articles that the parents answered the instrument for their children were excluded. To find the material with these features, the terms "Daytime sleepiness" AND "adolescents" and "Daytime sleepiness" AND "children" were used in the searches. In addition, the descriptor "Pediatric Daytime Sleepiness Scale" was used to filter more specifically. Data synthesis: Initially, 986 studies related to daytime sleepiness were identified. Considering the inclusion criteria, we analyzed 26 studies composed of 18,458 subjects aged 0 to 37 years. The diurnal sleepiness score ranged from 6.7±0.6 to 25.7±0.6 points. In general, all included studies investigated other sleep variables in addition to daytime sleepiness, such as: sleep duration, sleep quality, sleep hygiene or sleep disorders (narcolepsy and cataplexy), respiratory disorders, neurological and developmental disorders. Conclusions: There was a moderate use of PDSS to evaluate daytime sleepiness. This instrument allows the monitoring of factors that influence excessive daytime sleepiness in children and adolescents.

The mediator role of psychological morbidity on sleep and health behaviors in adolescents / O papel mediador da morbidade psicológica em hábitos de sono e comportamentos de saúde em adolescentes

ABSTRACT OBJECTIVE: This study examined the mediation role of psychological morbidity, defined in this study as depression/anxiety, in the relationship between excessive daytime sleepiness and sleep quality, and between sleep habits and health behaviors, in adolescents. METHODS: A total of 272 students, between 12 and 18 years old, underwent a psychological protocol assessing excessive daytime sleepiness, sleep quality, sleep habits, health behavior, and psychological morbidity. RESULTS: Psychological morbidity was not associated with the relationship between excessive daytime sleepiness and sleep quality, but was associated, with statistical significance, in the relationship between sleep habits and health behaviors. These results emphasize the role of psychological morbidity in adolescent health behaviors. CONCLUSION: Analyzing the symptoms of depression and anxiety in pediatric patients may help in a more accurate diagnosis, especially in relation to sleep problems and health behaviors.

RESUMO OBJETIVO: Este estudo analisa o papel mediador da morbidade psicológica, definida neste estudo como depressão e ansiedade, na relação entre a sonolência diurna excessiva e qualidade do sono e entre hábitos de sono e comportamentos de saúde em adolescentes. MÉTODO: Foram entrevistados 272 estudantes, entre 12 e 18 anos, por meio de um protocolo de avaliação que acessou dados acerca da sonolência diurna excessiva, qualidade do sono, hábitos de sono, comportamentos de saúde e morbidade psicológica. RESULTADOS: Os resultados mostraram que a morbidade psicológica não estava associada, com significância estatística, na relação entre a sonolência diurna excessiva e qualidade do sono, mas estava associada, com significância estatística, na relação entre hábitos de sono e comportamentos de saúde. Esse resultado reforça a importância da morbidade psicológica nos comportamentos de saúde dos adolescentes. CONCLUSÃO: Investigar sintomas de depressão e ansiedade nas consultas pediátricas pode auxiliar o profissional num diagnóstico mais preciso, principalmente em relação a problemas de sono e comportamentos de saúde.

Psychometric Properties of Turkish Version of Pediatric Daytime Sleepiness Scale (PDSS-T)

PURPOSE: The aim of the research was to evaluate the psychometric properties of the Pediatric Daytime Sleepiness Scale-Turkish Version (PDSS-T). METHODS: The researchers chose a study sample of 522 grade 5e11 students. Data were collected using a demographic data collection form and the PDSS-T. RESULTS: Cronbach a for the scale was .79 and Kaiser-Meyer-Olkin coefficient was .78. Item-total correlations for the scale varied between .53 and .73 (p < .001). The indices of model fit were determined to be the root mean square error of approximation at .07, the goodness of fit index at .97, and the comparative fit index at .97. CONCLUSIONS: The study's results showed that PDSS-T is a valid and reliable instrument for detecting Turkish-speaking children's and adolescents' daytime sleepiness. PDSS-T is convenient for professionals to prevent and manage daytime sleepiness.

Obstructive sleep apnea with excessive daytime sleepiness is associated with non-alcoholic fatty liver disease regardless of visceral fat

BACKGROUND/AIMS: Obstructive sleep apnea (OSA) is associated with an increased risk of obesity and non-alcoholic fatty liver disease (NAFLD), but it remains unclear whether the risk of NAFLD is independently related to OSA regardless of visceral obesity. Thus, the aim of the present study was to examine whether OSA alone or in combination with excessive daytime sleepiness (EDS) or short sleep duration was associated with NAFLD independent of visceral fat in Korean adults. METHODS: A total of 621 participants were selected from the Korean Genome and Epidemiology Study (KoGES). The abdominal visceral fat area (VFA) and hepatic fat components of the participants were assessed using computed tomography scans and they were then categorized into four groups depending on the presence of OSA and EDS. RESULTS: The proportions of NAFLD were 21.1%, 18.5%, 32.4%, and 46.7% in participants without OSA/EDS, with only EDS, with only OSA, and with both OSA and EDS, respectively. A combination of OSA and EDS increased the odds ratio (OR) for developing NAFLD (OR, 2.75; 95% confidence interval [CI], 1.21 to 6.28) compared to those without OSA/EDS, and this association remained significant (OR, 2.38; 95% CI, 1.01 to 5.59) even after adjusting for VFA. In short sleepers (< 5 hours) with OSA, the adjusted OR for NAFLD was 2.50 (95% CI, 1.08 to 5.75) compared to those sleeping longer than 5 hours without OSA. CONCLUSIONS: In the present study, OSA was closely associated with NAFLD in Korean adults. This association was particularly strong in those with EDS or short sleep duration regardless of VFA.

Narcolepsy with Obstructive Sleep Apnea in a 4-Year-Old Korean Girl: A Case Report

A 4-yr-old girl has exhibited severe snoring, restless sleep and increasing daytime sleepiness over the last 3 months. The physical examination showed that she was not obese but had kissing tonsils. Polysomnography demonstrated increased apnea-hypopnea index (AHI) of 5.2, and multiple sleep latency tests (MSLT) showed shortened mean sleep latency and one sleep-onset REM period (SOREMP). She was diagnosed with obstructive sleep apnea (OSA) and underwent tonsillectomy and adenoidectomy. After the surgery, her sleep became much calmer, but she was still sleepy. Another sleep test showed normal AHI of 0.2, the mean sleep latency of 8 min, and two SOREMPs. Diagnosis of OSA to be effectively treated by surgery and narcolepsy without cataplexy was confirmed. Since young children exhibiting both OSA and narcolepsy can fail to be diagnosed with the latter, it's desirable to conduct MSLT when they have severe daytime sleepiness or fail to get better even with good treatment.

Sonolência excessiva diurna: aspectos clínicos, diagnósticos e terapêuticos / Excessive daytime sleepiness: clinical, diagnostic and therapeutic aspects

A sonolência excessiva diurna (SED) é uma queixa prevalente e com grande impacto na qualidade de vida e na produtividade laborativa, além de trazer potenciais riscos de acidentes individuais e populacionais. Pacientes com doenças neurológicas, psiquiátricas, clínicas, além das próprias doenças do sono, com frequência se queixam de SED, cansaço e fadiga. O reconhecimento e o pronto tratamento desses sintomas e suas causas é importante. A abordagem pode ser farmacológica, não-farmacológica ou ambas. O acompanhamento deve ser criterioso e deve estimular a aderência, para que as melhorias na SED sejam de longo prazo.

Excessive daytime sleepiness (EDS) is a common and prevalent complaint with a great impact in quality of life and labor productivity, thus increasing potential life-threatening situations for the patient itself and the population. Patients with neurological, psychiatric, clinical disorders besides primary sleep disorders often complain of EDS, tiredness and fatigue. The recognition and prompt treatment of these symptoms and their causes are important. The approach can be pharmacological, non-pharmacological or both. Monitoring must be careful and should encourage adherence for improvements in EDS are long term.

Sleep duration and health status self-assessment (SF-36) in the elderly: a population-based study (ISA-Camp 2008) / Duração do sono e estado de saúde autorreferido (SF-36) em idosos: estudo de base populacional (ISA-Camp 2008)

The aim of this study was to determine the association between sleep duration and health status among the elderly. A population-based study was carried out with 1,418 elderly individuals using data from the health survey of Campinas, São Paulo State, Brazil (ISA-Camp 2008). Linear regression models were used to determine associations between the physical and mental components and subscales of the SF-36 and sleep duration. Elderly male individuals who slept > 6 hours obtained lower mean SF-36 scores for the vitality and mental health scales and the mental component summary than those who slept for seven to eight hours. All scales were negatively associated with sleep duration < 10 hours, except bodily pain. Scores for the mental health, vitality and role-emotional subscales were lower among women who slept for less than five hours. Mental health was negatively associated with < 10 hours of sleep. Sleep deprivation and excessive sleep were associated with poorer health status, with differences between genders, principally in the long duration sleep categories.

Avaliar a associação da duração do sono com o estado de saúde autorreferido em idosos. Estudo de base populacional que utilizou dados do Inquérito de Saúde de Campinas, São Paulo, Brasil (ISA-Camp 2008), com 1.418 idosos. Modelos de regressão linear foram usados para verificar a associação entre as escalas do SF-36 versão 2 e os dois componentes de medida, com a duração do sono. Homens idosos que dormem 6 horas ou menos apresentam as menores médias dos escores do SF-36, comparando com os que dormem 7 a 8 horas, nos domínios de vitalidade e saúde mental. Todas as escalas apresentaram associação negativa com a duração do sono de 10 horas ou mais, exceto em dor. Nas mulheres, o tempo de sono > 5 horas se associou à pior situação nas escalas de saúde mental, aspectos emocionais e vitalidade. Saúde mental se associou negativamente com a duração do sono de 10 horas ou mais nessa população. A privação do sono e o excesso se associaram ao pior estado de saúde nos idosos, de maneira diferente entre os sexos, principalmente considerando o sono longo.

Quality of sleep and quality of life in adolescents infected with human immunodeficiency virus / Qualidade do sono e qualidade de vida em adolescentes infectados pelo vírus da imunodeficiência humana

OBJECTIVES: To assess sleep characteristics of adolescents infected by HIV, and to ascertain whether psychosocial aspects are associated to the quality of sleep. METHODS: A cross-sectional study assessing 102 HIV-infected adolescents of both genders, aged between 10 and 20 years-old and 120 Controls. Data collection was performed by applying the Sleep Disturbance Scale for Children, the Epworth Sleepiness Scale, and the Pediatric Quality of Life Inventory. RESULTS: A sleep disturbance prevalence of 77.4% was found in patients, and a 75% prevalence in controls, and there was correlation between quality of sleep and of life. HIV-infected adolescents scored higher for sleep breathing disorders and had higher prevalence of excessive daytime sleepiness. CONCLUSIONS: HIV-infected adolescents had similar quality of sleep compared to healthy adolescents. This may be explained by the steady improvements in daily living as a result of successful anti-retroviral therapy, and by the vulnerability that affects Brazilian adolescents living in major urban centers.

OBJETIVOS: Avaliar as características do sono de adolescentes infectados pelo HIV e estudar se os aspectos psicossociais estão associados à qualidade do sono. MÉTODOS: Estudo transversal, que avaliou 102 adolescentes, com idades entre 10 e 20 anos, infectados pelo HIV, e 120 controles, de ambos os gêneros. Para a coleta de dados, aplicaram-se: a Sleep Disturbance Scale for Children, a Epworth Sleepiness Scale, e o Pediatric Quality of Life Inventory. RESULTADOS: Verificou-se prevalência de distúrbios do sono em 77,4% dos pacientes e em 75% nos controles, e houve correlação entre qualidade do sono e de vida. Adolescentes HIV-positivos apresentaram maior pontuação nos distúrbios respiratórios do sono e maior prevalência de sonolência diurna excessiva. CONCLUSÕES: Adolescentes infectados pelo HIV apresentaram qualidade de sono semelhante à da população saudável. Isso provavelmente decorre pela melhora de suas condições de vida resultante do sucesso da terapia antirretroviral em pacientes HIV-positivos e pelas vulnerabilidades que afetam adolescentes brasileiros de grandes centros urbanos.

Distrofia miotônica de Steinert e hipersonia primária: relato de caso / Myotonic dystrophy of Steinert and primary hypersomnia: case report

Este artigo apresenta o caso de uma paciente com distrofia miotônica tipo 1 (DM1) (doença de Steinert) e faz a revisão de literatura sobre sonolência excessiva diurna (SED) nestes pacientes. Paciente de 36 anos, portadora de (DM1), apresenta SED e testes múltiplos de latência com média de latências de 1 minuto e 22 segundos. DM1 e SED podem ter várias etiologias, a ressaltar as devidas à disfunção no sistema nervoso central ou à miopatia. No caso da paciente, provavelmente predomina a SED de origem central.

This article presents the case of a myotonic dystrophy type 1 - Steinert's disease (DM1) patient and reviews the literature on excessive daytime sleepiness (EDS) in these patients. Patient of 36 years of age, with DM1, presents EDS and mean multiple sleep latency test of 1 minute and 22 seconds. DM1 and EDS can have some etiologies, mainly due to central nervous system dysfunction or to the myopathy. In the present case, probably predominate the SED of central origin.

Arquitetura do sono e perfil respiratório polissonográfico de crianças e adolescentes com fibrose cística / Sleep architecture and polysomnographic respiratory profile of children and adolescents with cystic fibrosis

OBJETIVOS: Avaliar a arquitetura do sono em crianças e adolescentes com fibrose cística (FC) e com suspeita clínica de distúrbios respiratórios do sono (DRS), e identificar o perfil respiratório polissonográfico desses pacientes. MÉTODOS: Os pais ou responsáveis dos pacientes com FC preencheram um questionário que abordava questões clínicas e relacionadas ao sono. As crianças e adolescentes que foram identificadas com quadro clínico sugestivo de DRS foram submetidas a polissonografia. Após a realização da polissonografia, os pacientes foram agrupados de acordo com o índice de apneia obstrutiva (IA) observado (< 1 ou > 1) e utilizou-se a análise fatorial de correspondência múltipla para análise e identificação dos perfis polissonográficos dos pacientes. RESULTADOS: Dos 74 pacientes que preencheram os critérios de inclusão para este estudo, 67 foram submetidos à polissonografia; observou-se que 38 (56,7 por cento) dos 67 pacientes apresentaram um IA > 1. A mediana das idades foi de 8 anos. O grupo de pacientes com IA > 1 caracterizou-se por apresentar tempo total de sono (TTS) nos estágios 4 e no REM < 21 e 13 por cento, respectivamente, latência do sono REM > 144 minutos, o percentual de TTS com saturação da oxi-hemoglobina medida por oximetria de pulso (SpO2) < 90 por cento maior que 0,28 segundos e o índice de dessaturação de oxigênio maior que 0,92. CONCLUSÃO: Os resultados sugerem que pacientes pediátricos clinicamente estáveis com FC têm uma alta prevalência de DRS e apresentam frequentes queixas relacionadas ao sono, significativas alterações na sua arquitetura, assim como episódios de dessaturação de oxigênio durante o sono.

OBJECTIVES: To evaluate sleep architecture in children and adolescents with both cystic fibrosis (CF) and a clinical suspicion of sleep-disordered breathing (SDB), and to identify the respiratory polysomnographic profile of these patients. METHODS: Parents or guardians of children with CF filled out a questionnaire designed to assess their clinical and sleep conditions. Children who were identified as having behaviors associated with SDB underwent polysomnography. After polysomnography, patients were grouped according to the obstructive apnea index (AI) obtained (either < 1 or > 1), and a multiple correspondence factor analysis was used to analyze and identify the polysomnographic profile of patients. RESULTS: Of the 74 patients who met inclusion criteria for this study, 67 underwent polysomnography, and 38 (56.7 percent) of the 67 patients showed an AI > 1. Median age was 8 years. The group of patients with an AI > 1 was characterized by total sleep time (TST) during stage 4 and rapid eye movement (REM) stage of sleep < 21 and 13 percent, respectively, REM sleep latency > 144 minutes, percentage of TST with pulse oxyhemoglobin saturation (SpO2) < 90 percent higher than 0.28 seconds, and an oxygen desaturation index higher than 0.92. CONCLUSION: Results suggest that clinically stable pediatric patients with CF have a high prevalence of SDB and present frequent sleep complaints, significant changes in sleep architecture, and episodes of oxygen desaturation during sleep.

Narcolepsy: Clinical features, co-morbidities & treatment.

Narcolepsy is a neurologic illness that typically begins in the second and third decades of life. It is chronic in nature and negatively impacts the quality of life of affected patients. The classic presentation is a tetrad of excessive daytime sleepiness, cataplexy, sleep paralysis, and hypnagogic hallucinations. The exact cause remains unknown, but there is significant evidence that hypocretin deficiency plays an integral role. Some primary conditions that result in secondary narcolepsy include traumatic brain injury, congenital disorders, tumours, and strokes. Some medical and psychiatric disorders share characteristics of narcolepsy, at times leading to diagnostic inaccuracy. Other sleep disorders are commonly co-morbid. Diagnosis relies on patient history and objective data gathered from polysomnography and multiple sleep latency testing. Treatment focuses on symptom relief through medication, education, and behavioural modification. Both classic pharmacological treatments as well as newer options have significant problems, especially because of side effects and abuse potential. Novel modalities are being examined to expand options for treatment.

Consequences of obstructive sleep apnoea.

A plethora of medical consequences have been associated with the syndrome of obstructive sleep apnoea (OSA). These are global, affecting nearly every body function, and have been related to two key pathophysiological findings in sleep apnoea: repetitive falls in oxyhaemoglobin saturation during sleep, and recurrent arousals from sleep which terminate apnoea episodes. Sufferers of OSA may experience daytime sleepiness, which has been measured both subjectively using the Epworth Sleepiness Scale and the Stanford Sleepiness Scale, but also objectively, using Multiple Sleep Latency Testing, Maintenance of Wakefulness testing, and the Oxford Sleep Resistance test. In addition to the loss of alertness, sleep apnoea contributes to memory deficits, reduced vigilance, impaired executive function, increased risk for automobile and occupational accidents, and decreased quality of life. Importantly, afflicted individuals experience improvements in these outcomes with treatment. Taken together, this evidence forms a compelling basis to identify and treat latent cases of sleep apnoea. Not only do patients have the opportunity to achieve improvements in these outcomes and health-related quality of life, but the enormous economic burden that untreated apnoea imposes on the health care system may be eased.

Portuguese-language version of the Epworth sleepiness scale: validation for use in Brazil / Validação da escala de sonolência de Epworth em português para uso no Brasil

OBJECTIVE: The aim of this study was to develop a Portuguese-language version of the Epworth sleepiness scale (ESS) for use in Brazil. METHODS: The steps involved in creating the ESS in Brazilian Portuguese (ESS-BR) were as follows: translation; back-translation; comparison (by a committee) between the translation and the back-translation; and testing in bilingual individuals. The ESS-BR was applied to a group of patients who were submitted to overnight polysomnography in order to identify obstructive sleep apnea-hypopnea syndrome (OSAHS), insomnia and primary snoring. A control group was composed of subjects with a history of normal sleep habits, without reported snoring. RESULTS: A total of 114 patients and 21 controls were included. The 8-item scores of the ESS-BR had an overall reliability coefficient of 0.83. The study group was composed of 59 patients with OSAHS, 34 patients with primary snoring and 21 patients with insomnia. One-way ANOVA demonstrated significant differences in ESS-BR scores among the four diagnostic groups (p < 0.001). Post-hoc tests between groups showed that the ESS-BR scores of the patients with insomnia did not differ from those of the controls (p > 0.05). The ESS-BR scores were significantly higher for OSAHS patients and for primary snorers than for controls (p < 0.05). In addition, the scores for OSAHS patients were significantly higher than were those for primary snorers (p < 0.05). CONCLUSIONS: The results of the present study demonstrate that the ESS-BR is a valid and reliable instrument for the assessment of daytime sleepiness, equivalent to its original version when applied to individuals who speak Brazilian Portuguese.

OBJETIVO: Desenvolver uma versão da escala de sonolência de Epworth (ESE) para o português para uso no Brasil. MÉTODOS: A versão no português do Brasil (ESE-BR) foi desenvolvida de acordo com as seguintes etapas: tradução; retrotradução; comparação entre a tradução e a retrotradução (por um comitê); e aplicação em indivíduos bilíngues. A ESE-BR foi aplicada a um grupo de pacientes submetidos à polissonografia de noite inteira para identificar síndrome da apneia-hipopneia obstrutiva do sono (SAHOS), insônia e ronco primário. Um grupo controle foi composto de indivíduos com história de hábitos normais de sono, sem ronco aparente. RESULTADOS: Um total de 114 pacientes e 21 controles foram incluídos. Os 8 itens do ESE-BR tiveram um coeficiente de confiabilidade total de 0,83. O grupo em estudo foi composto por 59 pacientes com SAHOS, 34 pacientes com ronco primário e 21 pacientes com insônia. One-way ANOVA demonstrou diferenças significativas nos escores do ESE-BR entre os quatro grupos diagnósticos (p < 0,001). Testes post hoc entre grupos pareados mostraram que os escores do ESE-BR para insones não diferiram daqueles dos controles (p > 0,05). Os escores dos pacientes com SAHOS e nos roncadores primários foram significativamente maiores que os dos controles (p < 0,05). Além disso, os escores para pacientes com SAHOS foram significativamente maiores do que os daqueles com ronco primário (p < 0,05). CONCLUSÕES: Os resultados do presente estudo demonstraram que a ESE-BR é um instrumento válido e confiável para a avaliação da sonolência diurna e equivalente a sua versão original, quando aplicada em indivíduos que falam português do Brasil

Fatigue in a cohort of geriatric patients with and without Parkinson's disease

We evaluated the frequency of fatigue in geriatric patients with and without Parkinson’s disease (PD) and correlated it with depression and excessive daytime sleepiness. We evaluated 100 patients from Hospital São Paulo, 50 with PD from the Neurologic Outpatient Clinic and 50 with non-neurologic diseases or oncologic diseases from the Geriatric Outpatient Clinic (controls). All patients who scored 28 or more on the Fatigue Severity Scale (FSS) were considered to have fatigue. Also, all patients were submitted to a structured interview to diagnose depression by the criteria of the American Psychiatric Association (DSM-IV, 4th version) and were evaluated by the Modified Impact of Fatigue Scale and the Epworth Sleepiness Scale (ESE) to detect excessive daytime sleepiness. Demographic and disease details of all PD patients were recorded and the patients were examined and rated by the Unified Parkinson’s Disease Rating Sale (UPDRS) and Hoehn-Yahr staging. Frequency of fatigue (FSS ≥28) was 70% for PD and 22% for controls. Twenty of 35 PD patients with fatigue had concomitant depression. Comparedto controls, PD patients were found more frequently to have depression by DSM-IV criteria (44 vs 8%, respectively) and excessive daytime sleepiness by the ESE (44 vs 16%), although only depression was associated with fatigue. Fatigue was more frequent among depressed PD and control patients and was not correlated with PD duration or with UPDRS motor scores. ESE scores did not differ between patients with or without fatigue.

Restless leg syndrome, sleep quality and fatigue in multiple sclerosis patients

We have tested the hypothesis that restless leg syndrome (RLS) is related to quality of sleep, fatigue and clinical disability in multiple sclerosis (MS). The diagnosis of RLS used the four minimum criteria defined by the International Restless Legs Syndrome Study Group. Fatigue was assessed by the Fatigue Severity Scale (FSS >27), quality of sleep by the Pittsburgh Sleep Quality Index (PSQI >6), excessive daytime sleepiness by the Epworth Sleepiness Scale (ESS >10) and clinical disability by the Expanded Disability Status Scale (EDSS). Forty-four patients (32 women) aged 14 to 64 years (43 ± 14) with disease from 0.4 to 23 years (6.7 ± 5.9) were evaluated. Thirty-five were classified as relapsing-remitting, 5 as primary progressive and 4 as secondary progressive. EDSS varied from 0 to 8.0 (3.6 ± 2.0). RLS was detected in 12 cases (27 percent). Patients with RLS presented greater disability (P = 0.01), poorer sleep (P = 0.02) and greater levels of fatigue (P = 0.03). Impaired sleep was present in 23 (52 percent) and excessive daytime sleepiness in 3 cases (6.8 percent). Fatigue was present in 32 subjects (73 percent) and was associated with clinical disability (P = 0.000) and sleep quality (P = 0.002). Age, gender, disease duration, MS pattern, excessive daytime sleepiness and the presence of upper motor neuron signs were not associated with the presence of RLS. Fatigue was best explained by clinical disability and poor sleep quality. Awareness of RLS among health care professionals may contribute to improvement in MS management.

Relationship between the quality of life and the severity of obstructive sleep apnea syndrome

The effects of sleep disorders on the quality of life (QOL) have been documented in the literature. Excessive sleepiness and altered circadian rhythms may negatively affect ability to learn, employment, and interpersonal relations, and directly degrade QOL. The objective of the present study was to evaluate the impact of obstructive sleep apnea syndrome of varying severity on QOL. The study was conducted on 1892 patients aged 18 years or older referred by a physician to the Sleep Institute, São Paulo, with complaints related to apnea (snoring, excessive daytime sleepiness, hyperarousal, and fatigue). They were submitted to overnight polysomnography for the diagnosis of sleep disorders from August 2005 through April 2006. The patients completed the Epworth Sleepiness Scale and QOL SF-36 sleep questionnaires. They were classified as non-physically active and physically active and not-sleepy and sleepy and the results of polysomnography were analyzed on the basis of the apnea hypopnea index (AHI). The apneic subjects showed a reduction in QOL which was proportional to severity. There was a significant decrease in all domains (physical functioning, role physical problems, bodily pain, general health perceptions, vitality, social functioning, emotional problems, general mental health) for apneics with AHI >30, who generally were sleepy and did not participate in physical activities (P < 0.05). The present study provides evidence that the impact of sleep disorders on QOL in apneics is not limited to excessive daytime sleepiness and that physical activity can contribute to reducing the symptoms. Thus, exercise should be considered as an adjunct interventional strategy in the management of obstructive sleep apnea syndrome.

Diagnóstico dos transtornos do sono relacionados ao ritmo circadiano / Diagnosis of circadian rhythm sleep disorders

Queixas de insônia e sonolência excessiva são comuns na investigação dos distúrbios respiratórios do sono; os transtornos do sono relacionados ao ritmo circadiano talvez sejam as causas mais freqüentemente esquecidas no diagnóstico diferencial destes sintomas. Estes transtornos se manifestam por desalinhamento entre o período do sono e o ambiente físico e social de 24 h. Os dois transtornos do sono relacionados ao ritmo circadiano mais prevalentes são o de fase atrasada (comum em adolescentes) e avançada do sono (comum em idosos), situações nas quais o período de sono se desloca para mais tarde e mais cedo, respectivamente. As possíveis confusões com insônia e sonolência excessiva tornam importante ter sempre em mente estes transtornos. Entretanto, há nove possíveis diagnósticos, e todos são de interesse clínico. Como a luz é o principal sinal para sincronizar os relógios biológicos, pessoas cegas e trabalhadores em turnos e noturno são os mais propensos a desenvolver transtornos do sono relacionados ao ritmo circadiano. Neste artigo, revisa-se a nova classificação internacional dos transtornos do sono relacionados ao ritmo circadiano.

Insomnia and excessive sleepiness are common in the investigation of sleep-disordered breathing. Circadian rhythm sleep disorders are perhaps the most often overlooked conditions in the differential diagnosis of these symptoms. Circadian rhythm sleep disorders manifest as misalignment between the sleep period and the physical/social 24-h environmental cycle. The two most prevalent circadian rhythm sleep disorders are delayed sleep phase (common in adolescents) and advanced sleep phase (common in the elderly), situations in which the sleep period is displaced to a later or earlier time, respectively. It is important to keep these two disorders in mind, since they can be confused with insomnia and excessive sleepiness. However, there are nine possible diagnoses, and all nine are of clinical interest. Since light is the principal cue used in synchronizing the biological clock, blind individuals and night-shift/swing-shift workers are more prone to develop circadian rhythm sleep disorders. In this article, the new international classification of circadian rhythm sleep disorders is reviewed.