Brain encoding of speech sounds in newborns with complex congenital heart disease: Towards the identification of early biomarkers of language delay

W. Rozalen, B. Desnous, C. Ovaert, T. Beretti, C. François
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Abstract

Introduction

Newborns with complex congenital heart disease (CCCHD) are at high risk of neurodevelopmental disorders of multifactorial aetiology, including brain immaturity comparable to moderately pre-term infants. Nearly one third of children with CCCHD have a language delay, which negatively impacts their academic performance, communication, and social interactions.

Objective

Our team has shown that moderate preterm newborns have impaired cortical encoding of vowels compared to term newborns. Newborns with CCCHD may have a similar early encoding profile to preterm infants, which might serve as an early functional biomarker of language delay in this population.

Methods

We recruited 15 newborns with CCHD, between March and December 2022 within the department of Paediatric Cardiology in La Timone Children's Hospital. These neonates were passively exposed to a sequence of syllables using an earpiece, while cortical and subcortical event-related potentials were simultaneously recorded.

Results/Expected results

CCCHD newborns had a significantly longer neural conduction time between the cochlea and the first brainstem relay (inferior colliculus), compared with term newborns. We hypothesize that the amplitude of cortical event-related potentials will be lower in newborns with CCCHD compared to term newborns.

Conclusion/Perspectives

This altered encoding pattern is likely to be caused by immature auditory pathways. Thus, the detection of early alteration of perception could help to identify newborns at risk of language delay, allowing the implementation of targeted rehabilitation before the onset of speech disorder.

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复杂先天性心脏病新生儿语音的大脑编码:语言延迟早期生物标志物的识别
新生儿患有复杂先天性心脏病(CCCHD)是多因素病因神经发育障碍的高危人群,包括与中度早产儿相当的脑不成熟。近三分之一的CCCHD儿童有语言迟缓,这对他们的学习成绩、沟通和社会交往产生了负面影响。目的:我们的研究小组已经证明,与足月新生儿相比,中度早产新生儿的元音皮质编码受损。患有CCCHD的新生儿可能具有与早产儿相似的早期编码特征,这可能是该人群语言延迟的早期功能生物标志物。方法:我们于2022年3月至12月在La Timone儿童医院儿科心内科招募了15名患有CCHD的新生儿。这些新生儿通过耳机被动地暴露在一系列音节中,同时记录皮层和皮层下事件相关电位。结果/预期结果先天性先天性心脏病新生儿耳蜗与第一脑干中继(下丘)之间的神经传导时间明显长于足月新生儿。我们假设,与足月新生儿相比,CCCHD新生儿皮质事件相关电位的振幅会更低。结论/观点这种编码模式的改变可能是由不成熟的听觉通路引起的。因此,早期感知改变的检测可以帮助识别有语言延迟风险的新生儿,从而在语言障碍发病之前实施有针对性的康复。
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来源期刊
Archives of Cardiovascular Diseases Supplements
Archives of Cardiovascular Diseases Supplements CARDIAC & CARDIOVASCULAR SYSTEMS-
自引率
0.00%
发文量
508
期刊介绍: Archives of Cardiovascular Diseases Supplements is the official journal of the French Society of Cardiology. The journal publishes original peer-reviewed clinical and research articles, epidemiological studies, new methodological clinical approaches, review articles, editorials, and Images in cardiovascular medicine. The topics covered include coronary artery and valve diseases, interventional and pediatric cardiology, cardiovascular surgery, cardiomyopathy and heart failure, arrhythmias and stimulation, cardiovascular imaging, vascular medicine and hypertension, epidemiology and risk factors, and large multicenter studies. Additionally, Archives of Cardiovascular Diseases also publishes abstracts of papers presented at the annual sessions of the Journées Européennes de la Société Française de Cardiologie and the guidelines edited by the French Society of Cardiology.
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