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在中期到晚期的早产婴儿中,点点白质异常

Eleanor Kennedy¹, Ting Guo², Sian Williams¹

¹Liggins Institute, University of Auckland, Auckland, New Zealand.

Annals of neurology

|June 9, 2025

概括

白质异常 (WMA) 在中度到晚期的早产婴儿中很常见,在以后的扫描中经常错过. 这项研究绘制了WMA分布图,突出了其在这个群体中的流行率和特征拓.

科学领域:

新生儿神经学新生儿神经学
神经成像是一种神经成像.
发育神经科学的发展神经科学.

背景情况:

中期到晚期早产 (MLP) 婴儿占神经发育障碍儿童的重要比例.
白质损伤 (WMI) 是非常早产 (VP) 婴儿不良结果的已知预测因素,但MLP婴儿的WMA知之甚少.

研究的目的:

调查中期到晚期早产 (MLP) 婴儿白质异常 (WMA) 的流行,负担和地形分布.

主要方法:

大脑MRI在出生后不久,在术语等效年龄 (TEA) 时对MLP婴儿进行.
进行了WMA的手动细分,计算了WMA的总和区域体积以及与大脑总体积相比WMA的百分比.
产生了概率的WMA图,并与VP婴儿和患有先天性心脏病的产后婴儿的WMI进行了比较.

主要成果:

在101名MLP婴儿中,39.6%的婴儿在至少一个MRI扫描中表现出WMA.
在患有WMA的婴儿中,病变在生命早期和TEA扫描之间经常减少可见性或变得无法检测.
概率绘制揭示了独特的WMA拓,主要在脑后区域,三角区域显示新生儿群体的脆弱性.

结论:

白质异常 (WMA) 在中晚期早产婴儿中比以前认可的更为普遍,并遵循特征分布.
在相当年龄的MRI扫描中,WMA可能是微妙的或错过的.
临床意义和WMA与MLP婴儿神经发育结果的关系需要进一步调查.

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