Development of electroencephalographic sleep phenomena in hypothyroid infants

Schultz, Marvin A.; Schulte, F. J.; Akiyama, Yoshio; Parmelee, Arthur H.

doi:10.1016/0013-4694(68)90176-4

Cited by 52 publications

(15 citation statements)

References 38 publications

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“…Alterações semelhantes na arquitetura do sono foram descritas em RN de mães dependentes de heroína 21 , em neonatos com hipotireoidismo 22 , em RN com malformação cerebral 23 , e em filhos de mães diabéticas 24 .…”

Section: Discussão Discussão Discussão Discussão Discussãounclassified

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Estudo vídeo-polissonográfico em recém-nascidos de termo pequenos para a idade gestacional

Padula

Rugulo

Padovani

et al. 1999

Arq. Neuro-Psiquiatr.

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RESUMO -Analisamos o exame video-polissonográfico de 26 recém-nascidos de termo (RNT) com 24 horas de vida. Os RN tinham exame neurológico e ultrassonográfico cerebral normais e apresentaram período perinatal isento de complicações. Foram subdivididos em dois grupos, um controle constituído de 11 RNT com peso adequado para a idade gestacional; e um grupo de 15 RN com peso abaixo do esperado para o termo (RNT-PIG). Do segundo grupo, 13 RN apresentaram algum tipo de alteração ao exame video-polissonográfico. As alterações mais frequentes foram na arquitetura do sono, 11 casos, e no comportamento, em que oito RN apresentaram número excessivo de sobressaltos ("startle") em relação ao grupo controle e dois RN uma atividade motora reduzida. Os resultados deste estudo demonstram a utilidade da video-polissonografia quando aplicada a RNT-PIG. O exame mostrou-se sensível em detectar diferenças no comportamento, arquitetura do sono e padrão eletrencefalográfico dos RNT-PIG quando comparados ao grupo controle. PALAVRAS-CHAVE: polissonografia neonatal, RNT-PIG, EEG neonatal. Video-polygraphic-EEG study in the full-term newborn with low birthweight for their gestational ageABSTRACT -Video-polygraphic-EEG studies were performed in the first 24 life-hours of 26 healthy full-term newborns without perinatal injuries. The neurological examination and cranial ultrasonography were normal. The newborns were divided into two groups: one, with full-term appropriate -birth weight 11 newborns (control group ) and the other with full-term low-birth weight 15 newborns. Thirteen newborns of the second group had video-polygraphic-EEG study abnormalities. The most frequent abnormalities were found in 11 cases, as far as sleep architecture is concerned. Also, when compared with the control group, 8 cases of an excessive amount of startles and 2 cases of low behavior activities were found. The results demonstrate the usefulness of videopolygraphic-EEG study in the full-term newborns with intra-uterine growth retard. This examination was sensitive to detect behavior, sleep architecture and EEG standard differences in the low birth-weight newborns as to the control group.

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Section: Discussão Discussão Discussão Discussão Discussãounclassified

“…O esperado seria a ocupação de 50% ou mais do registro em SA e no mínimo de 20% em S Q [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] .…”

Section: Discussão Discussão Discussão Discussão Discussãounclassified

Estudo vídeo-polissonográfico em recém-nascidos de termo pequenos para a idade gestacional

Padula

Rugulo

Padovani

et al. 1999

Arq. Neuro-Psiquiatr.

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“…Abnormal EEGsleep patterns have been associated with specific clinical conditions identified in either the prenatal or perinatal periods. Among the clinical conditions associated with abnormal EEG-sleep patterns are seizures (10, 1 I), untreated hypothyroidism (12), maternal diabetes (4) and toxemia (1 3, 14), trisomy 2 1 (1 5), asphyxia (1 1, [16][17][18], and drug addiction (1 9). Several investigators contend that EEG-sleep abnormalities can predict medical and behavioral difficulties in neonates and infants even in the absence of clinical abnormalities (10, 1 1, 20, 2 1).…”

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confidence: 99%

The Effects of Prenatal Alcohol and Marijuana Exposure: Disturbances in Neonatal Sleep Cycling and Arousal

et al. 1988

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ABSTRACT. Neonatal EEG and sleep findings are presented from a longitudinal study of the effects of maternal alcohol and marijuana use during pregnancy. Infant outcome has been examined relative to the trimester(s) of pregnancy during which use occurred. Disturbances in sleep cycling, motility, and arousals were noted that were both substance and trimester specific. Alcohol consumed during the first trimester of pregnancy was associated with disruptions in sleep and arousal, whereas marijuana use affected sleep and motility regardless of the trimester in which it was used. Although these findings are preliminary and based on a small sample of women exhibiting only moderate substance use during pregnancy, they do suggest that specific neurophysiological systems may be differentially affected by prenatal alcohol or marijuana exposure even in the absence of morphological abnormalities.

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“…After thyroid hormone therapy, some infants normalized their spindling activity, while others continue to show sleep spindle deficits. This latter group tended to show developmental retardation on follow-up evaluation [95]. A longitudinal study conducted in trisomy-21 infants during the first year of life revealed that sleep spindles appeared later, were reduced and had reduced interhemispheric synchronization that did not improve by the 12th month of age [96].…”

Section: Intellectual Disabilitiesmentioning

confidence: 97%

Sleep Spindle Deficit in Schizophrenia: Contextualization of Recent Findings

Castelnovo

D’Agostino

Casetta

et al. 2016

Curr Psychiatry Rep

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Sleep spindles are wax and waning brain oscillations at a frequency range of 11-16 Hz, lasting 0.5-2 s, that define non-rapid eye movement sleep stage 2. Over the past few years, several independent studies pointed to a decrease of sleep spindles in schizophrenia. The aim of this review is to contextualize these findings within the growing literature on these oscillations across other neuro-psychiatric disorders. Indeed, spindles reflect the coordinated activity of thalamocortical networks, and their abnormality can be observed in a variety of conditions that disrupt local or global thalamocortical connectivity. Although the broad methodological variability across studies limits the possibility of drawing firm conclusions, impaired spindling activity has been observed in several neurodevelopmental and neurodegenerative disorders. Despite such lack of specificity, schizophrenia remains the only condition with a typical late adolescence to young adulthood onset in which impaired spindling has been consistently reported. Further research is necessary to clearly define the pathogenetic mechanisms that lead to this deficit and the validity of its widespread use as a clinical biomarker.

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Development of electroencephalographic sleep phenomena in hypothyroid infants

Cited by 52 publications

References 38 publications

Estudo vídeo-polissonográfico em recém-nascidos de termo pequenos para a idade gestacional

Estudo vídeo-polissonográfico em recém-nascidos de termo pequenos para a idade gestacional

The Effects of Prenatal Alcohol and Marijuana Exposure: Disturbances in Neonatal Sleep Cycling and Arousal

Sleep Spindle Deficit in Schizophrenia: Contextualization of Recent Findings

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