Ortibus E, Lagae L, Casteels I, Demaerel P, Stiers P
University Hospitals, Paediatric Neurology Department, Leuven, Belgium.
Dev Med Child Neurol. 2009 Mar;51(3):209-17. doi: 10.1111/j.1469-8749.2008.03175.x.
In this article we describe visual perceptual abilities of a clinical population, referred for visual problems to our multidisciplinary team and assessed with the five computer tasks from the L94 visual perceptual battery. Clinical and neuroimaging findings were correlated with the findings on this task battery. Seventy children (35 males, 35 females) constituted our cohort. Age ranged from 4 to 20 years (mean 7y [SD 3y]). Forty children were born before 37 weeks gestational age. Thirty-six children had cerebral palsy (CP), of whom 24 had spastic diplegia, five had spastic hemiplegia, and four had spastic quadriplegia. Three children had ataxic CP. Perceptual visual impairment (PVI) was established in comparison to the performance age obtained on non-verbal intelligence subtests, instead of chronological age. Our results suggest that children with a history of preterm birth and a clinical CP picture are most at risk for a specific PVI. Correlations among other clinical variables did not define a clinical subgroup more at risk. Children with periventricular leucomalacia were almost equally represented in both PVI and non-PVI groups. Normal magnetic resonance imaging did not exclude the presence of PVI. In these children, however, we found another impairment profile, more in favour of dorsal stream impairment.
在本文中，我们描述了一组临床患者的视觉感知能力。这些患者因视觉问题被转介到我们的多学科团队，并通过L94视觉感知测试组中的五项计算机任务进行评估。临床和神经影像学检查结果与该测试组的结果相关联。我们的队列由70名儿童组成（35名男性，35名女性）。年龄范围为4至20岁（平均7岁[标准差3岁]）。40名儿童在孕37周前出生。36名儿童患有脑瘫（CP），其中24名患有痉挛性双瘫，5名患有痉挛性偏瘫，4名患有痉挛性四肢瘫。3名儿童患有共济失调型脑瘫。与通过非言语智力子测试获得的表现年龄而非实际年龄相比，确定了感知性视觉障碍（PVI）。我们的结果表明，有早产史且有临床脑瘫表现的儿童最易出现特定的PVI。其他临床变量之间的相关性并未确定出风险更高的临床亚组。脑室周围白质软化症患儿在PVI组和非PVI组中的比例几乎相同。磁共振成像正常并不能排除PVI的存在。然而，在这些儿童中，我们发现了另一种损伤模式，更倾向于背侧通路损伤。
