Clinical utility of early amplitude integrated EEG in monitoring term newborns at risk of neurological injury

Objective: to test the clinical utility of an early amplitude-integrated electroencephalography (aEEG) to predict short-term neurological outcome in term newborns at risk of neurology injury. Methods: this was a prospective, descriptive study. The inclusion criteria were neonatal encephalopathy, neu...

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Main Authors: Paulina A. Toso, Alvaro J. González, María E. Pérez, Javier Kattan, Jorge G. Fabres, José L. Tapia, Hernán S. González
Format: Article
Language:English
Published: Elsevier 2014-03-01
Series:Jornal de Pediatria
Online Access:http://www.sciencedirect.com/science/article/pii/S0021755713002040
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author Paulina A. Toso
Alvaro J. González
María E. Pérez
Javier Kattan
Jorge G. Fabres
José L. Tapia
Hernán S. González
spellingShingle Paulina A. Toso
Alvaro J. González
María E. Pérez
Javier Kattan
Jorge G. Fabres
José L. Tapia
Hernán S. González
Clinical utility of early amplitude integrated EEG in monitoring term newborns at risk of neurological injury
Jornal de Pediatria
author_facet Paulina A. Toso
Alvaro J. González
María E. Pérez
Javier Kattan
Jorge G. Fabres
José L. Tapia
Hernán S. González
author_sort Paulina A. Toso
title Clinical utility of early amplitude integrated EEG in monitoring term newborns at risk of neurological injury
title_short Clinical utility of early amplitude integrated EEG in monitoring term newborns at risk of neurological injury
title_full Clinical utility of early amplitude integrated EEG in monitoring term newborns at risk of neurological injury
title_fullStr Clinical utility of early amplitude integrated EEG in monitoring term newborns at risk of neurological injury
title_full_unstemmed Clinical utility of early amplitude integrated EEG in monitoring term newborns at risk of neurological injury
title_sort clinical utility of early amplitude integrated eeg in monitoring term newborns at risk of neurological injury
publisher Elsevier
series Jornal de Pediatria
issn 0021-7557
publishDate 2014-03-01
description Objective: to test the clinical utility of an early amplitude-integrated electroencephalography (aEEG) to predict short-term neurological outcome in term newborns at risk of neurology injury. Methods: this was a prospective, descriptive study. The inclusion criteria were neonatal encephalopathy, neurologic disturbances, and severe respiratory distress syndrome. Sensitivity, specificity, positive and negative predictive values, and likelihood ratio (LR) were calculated. Clinical and demographic data were analyzed. Neurological outcome was defined as the sum of clinical, electroimaging, and neuroimaging findings. Results: ten of the 21 monitored infants (48%) presented altered short-term neurologic outcome. The aEEG had 90% sensitivity, 82% specificity, 82% positive predictive value, and 90% negative predictive value. The positive LR was 4.95, and the negative LR was 0.12. In three of 12 (25%) encephalopathic infants, the aEEG allowed for a better definition of the severity of their condition. Seizures were detected in eight infants (38%), all subclinical at baseline, and none had a normal aEEG background pattern. The status of three infants (43%) evolved and required two or more drugs for treatment. Conclusions: in infants with encephalopathy or other severe illness, aEEG disturbances occur frequently. aEEG provided a better classification of the severity of encephalopathy, detected early subclinical seizures, and allowed for monitoring of the response to treatment. aEEG was a useful tool at the neonatal intensive care unit for predicting poor short-term neurological outcomes for all sick newborn. Resumo: Objetivo: testar a utilidade clínica do aEEG precoce em recém-nascidos a termo com risco de lesão neurológica, para prever resultados neurológicos de curto prazo. Métodos: estudo prospectivo e descritivo. Os critérios de inclusão foram encefalopatia neonatal, distúrbios neurológicos e bebês com SARA grave. Sensibilidade, especificidade, valor preditivo positivo e negativo e razão de verossimilhança foram calculados. Dados clínicos e demográficos foram analisados. O resultado neurológico foi definido como a soma de conclusões clínicas, de eletro e de neuroimagem. Resultados: dentre os 21 neonatos monitorados, dez (48%) apresentaram resultado neurológico de curto prazo alterado. O aEEG apresentou sensibilidade de 90%, especificidade de 82%, valor preditivo positivo de 82% e valor preditivo negativo de 90%. A VR positiva foi de 4,95, e a RV negativa de 0,12. Em três dos 12 (25%) neonatos com encefalopatia foi possível definir melhor a gravidade de sua condição pelo aEEG. Foram detectadas convulsões em oito neonatos (38%), todas subclínicas no início do estudo, e nenhum apresentou um padrão histórico normal no aEEG. O estado de três neonatos (43%) evoluiu e exigiu dois ou mais medicamentos para tratamento. Conclusões: em neonatos com encefalopatia ou outra doença grave, os distúrbios no aEEG ocorrem com mais frequência. O aEEG forneceu uma classificação melhor da gravidade da encefalopatia, detectou convulsões subclínicas precoces e permitiu que fosse feito o monitoramento da resposta ao tratamento. O aEEG é uma ferramenta útil para prever resultados neurológicos de curto prazo em todos os bebês doentes na UTIN. Keywords: Amplitude integrated electroencephalography (aEEG), Hypoxic ischemic encephalopathy (HIE), Neonatal intensive care, Seizures, Palavras-chave: Eletroencefalograma de amplitude integrada (aEEG), Encefalopatia hipóxico-isquêmica (EHI), Terapia intensiva neonatal, Convulsões
url http://www.sciencedirect.com/science/article/pii/S0021755713002040
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spelling doaj-9321467817f245659f395219ce845bcf2020-11-24T22:39:20ZengElsevierJornal de Pediatria0021-75572014-03-01902143148Clinical utility of early amplitude integrated EEG in monitoring term newborns at risk of neurological injuryPaulina A. Toso0Alvaro J. González1María E. Pérez2Javier Kattan3Jorge G. Fabres4José L. Tapia5Hernán S. González6Division of Pediatrics, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile; Corresponding author.Division of Pediatrics, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, ChilePontificia Universidad Católica de Chile, Santiago, ChileDivision of Pediatrics, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, ChileDivision of Pediatrics, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, ChileDivision of Pediatrics, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, ChileDivision of Pediatrics, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, ChileObjective: to test the clinical utility of an early amplitude-integrated electroencephalography (aEEG) to predict short-term neurological outcome in term newborns at risk of neurology injury. Methods: this was a prospective, descriptive study. The inclusion criteria were neonatal encephalopathy, neurologic disturbances, and severe respiratory distress syndrome. Sensitivity, specificity, positive and negative predictive values, and likelihood ratio (LR) were calculated. Clinical and demographic data were analyzed. Neurological outcome was defined as the sum of clinical, electroimaging, and neuroimaging findings. Results: ten of the 21 monitored infants (48%) presented altered short-term neurologic outcome. The aEEG had 90% sensitivity, 82% specificity, 82% positive predictive value, and 90% negative predictive value. The positive LR was 4.95, and the negative LR was 0.12. In three of 12 (25%) encephalopathic infants, the aEEG allowed for a better definition of the severity of their condition. Seizures were detected in eight infants (38%), all subclinical at baseline, and none had a normal aEEG background pattern. The status of three infants (43%) evolved and required two or more drugs for treatment. Conclusions: in infants with encephalopathy or other severe illness, aEEG disturbances occur frequently. aEEG provided a better classification of the severity of encephalopathy, detected early subclinical seizures, and allowed for monitoring of the response to treatment. aEEG was a useful tool at the neonatal intensive care unit for predicting poor short-term neurological outcomes for all sick newborn. Resumo: Objetivo: testar a utilidade clínica do aEEG precoce em recém-nascidos a termo com risco de lesão neurológica, para prever resultados neurológicos de curto prazo. Métodos: estudo prospectivo e descritivo. Os critérios de inclusão foram encefalopatia neonatal, distúrbios neurológicos e bebês com SARA grave. Sensibilidade, especificidade, valor preditivo positivo e negativo e razão de verossimilhança foram calculados. Dados clínicos e demográficos foram analisados. O resultado neurológico foi definido como a soma de conclusões clínicas, de eletro e de neuroimagem. Resultados: dentre os 21 neonatos monitorados, dez (48%) apresentaram resultado neurológico de curto prazo alterado. O aEEG apresentou sensibilidade de 90%, especificidade de 82%, valor preditivo positivo de 82% e valor preditivo negativo de 90%. A VR positiva foi de 4,95, e a RV negativa de 0,12. Em três dos 12 (25%) neonatos com encefalopatia foi possível definir melhor a gravidade de sua condição pelo aEEG. Foram detectadas convulsões em oito neonatos (38%), todas subclínicas no início do estudo, e nenhum apresentou um padrão histórico normal no aEEG. O estado de três neonatos (43%) evoluiu e exigiu dois ou mais medicamentos para tratamento. Conclusões: em neonatos com encefalopatia ou outra doença grave, os distúrbios no aEEG ocorrem com mais frequência. O aEEG forneceu uma classificação melhor da gravidade da encefalopatia, detectou convulsões subclínicas precoces e permitiu que fosse feito o monitoramento da resposta ao tratamento. O aEEG é uma ferramenta útil para prever resultados neurológicos de curto prazo em todos os bebês doentes na UTIN. Keywords: Amplitude integrated electroencephalography (aEEG), Hypoxic ischemic encephalopathy (HIE), Neonatal intensive care, Seizures, Palavras-chave: Eletroencefalograma de amplitude integrada (aEEG), Encefalopatia hipóxico-isquêmica (EHI), Terapia intensiva neonatal, Convulsõeshttp://www.sciencedirect.com/science/article/pii/S0021755713002040