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1.
Rev. bras. neurol ; 48(1/2): 7-22, jan.-mar. 2012. ilus, graf
Article in Portuguese | LILACS | ID: lil-652230

ABSTRACT

O sono pode ser estudado por registro em poligrafia (registro combinado de vários sinais biológicos) geralmente chamado de polissonografia (PSG). Neste artigo comparam-se os resultados dos achados da PSG, segundo Rechtshaffen and Kales sleep scoring manual, 1968 ("R and K" rules), com American Academy of Sleep Medicine Manual for Scoring Sleep and Associated Events, 2007, mas se enfatiza o uso do segundo manual. Sumariamente, e com uso de ilustrações, resumem-se a aplicação prática da PSG; o estudo dos potenciais bioelétricos e suas bases; os sensores e transdutores usados nesta poligrafia; as características dos estágios do ciclo sono-vigília. Associadamente, apresentam-se alguns achados normais e anormais da PSG, avaliam-se parâmetros do estudo do ciclo sono-vigília.


Sleep can be studied by a polygraph registration (registration of various combined biological signals) commonly called polysomnography (PSG). In this paper we compare the results of the PSG, according to the Rechtshaffen and Kales sleep scoring manual of 1968 ("R and K" rules), to the American Academy of Sleep Medicine Manual for Scoring Sleep and Associated Events, 2007, however it is emphasized the second manual. Briefly, and with the help of illustrations, we summarize: practical application of the PSG and the study of bioelectric potential and its bases; sensors and transducers used in this polygraph; the characteristics of the stages of sleep-wake cycle. In addition, we present some PSG normal and abnormal findings, and we evaluate the parameters of the study of sleep-wake cycle.


Subject(s)
Humans , Aged , Young Adult , Sleep Wake Disorders/diagnosis , Sleep Stages , Polysomnography/methods , Sleep, REM , Diagnostic Techniques and Procedures , Sleep-Wake Transition Disorders
2.
Rev. bras. neurol ; 47(3): 44-48, jul.-set. 2011. graf
Article in Portuguese | LILACS | ID: lil-621076

ABSTRACT

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.


Subject(s)
Humans , Female , Adult , Disorders of Excessive Somnolence/diagnosis , Disorders of Excessive Somnolence/etiology , Myotonic Dystrophy/diagnosis , Myotonic Dystrophy/genetics , Sleep Stages , Myotonic Dystrophy/complications
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