Visual–perceptual impairment in children with periventricular leukomalacia

Fazzi, Elisa; Bova, Stefania Maria; Uggetti, Carla; Signorini, Sabrina; Bianchi, Paolo Emilio; Maraucci, Ilaria; Zoppello, Marina; Lanzi, G.

doi:10.1016/j.braindev.2004.02.002

Cited by 119 publications

(146 citation statements)

References 22 publications

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“…4,6,9 The pattern of ventral and dorsal stream malfunctioning observed in our sample can, at least in part, be related to the age of clinical and neurocognitive assessment. In fact in younger infants, dorsal-streamrelated abilities are easier to test than those of the ventral stream.…”

Section: Discussionmentioning

confidence: 75%

“…2 However, in his 2001 revision of the definition of CVI, Good 1 proposed extending the clinical spectrum of the impairment to include cognitive visual dysfunctions (CVDs) which, being linked to impairment of the ability to analyse and process visual information, manifest themselves through a disorder of higher visual abilities. 3 These dysfunctions, also grouped under the heading 'visualperceptual impairment', [4][5][6] can be associated with the neurophthalmological dysfunctions typical of CVI, or constitute the main clinical expressions of CVI in patients with normal or near-normal visual acuity ('higher-functioning CVI').…”

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confidence: 99%

“…The impairment of visual-spatial and visualmotor integration abilities in preterm children with periventricular leukomalacia (PVL) has recently been described. [4][5][6]8,9 This can even manifest itself in very young children, 6,9 and has long been considered the hallmark of CVDs.…”

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confidence: 99%

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Cognitive visual dysfunctions in preterm children with periventricular leukomalacia

Fazzi

Bova

Giovenzana

et al. 2009

Develop Med Child Neuro

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162

154

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Aim Cognitive visual dysfunctions (CVDs) reflect an impairment of the capacity to process visual information. The question of whether CVDs might be classifiable according to the nature and distribution of the underlying brain damage is an intriguing one in child neuropsychology. Method We studied 22 children born preterm (12 males, 10 females; mean age at examination 8y, range 6–15y; mean gestational age 30wks, range 28–36wks) with periventricular leukomalacia, spastic diplegia, normal intelligence (mean Full‐scale IQ 84; mean Verbal IQ 97; mean Performance IQ 74), and normal visual acuity, focusing on higher visual functions. Brain magnetic resonance images (MRI) were analysed to establish the presence of lesions along the primary optic pathway, in the occipitoparietal and occipitotemporal regions. Results Most children displayed an uneven cognitive profile, with deficits in visual object recognition, visual imagery, visual–spatial skills, and visual memory, and sparing of visual associative abilities, non‐verbal intelligence, and face and letter recognition. Conventional brain MRI did not document major alterations of parietal and temporal white matter, or cortical alteration of areas involved in visual associative functions. Interpretation We suggest a widespread involvement of higher visual processing systems, involving both the ventral and dorsal streams, in preterm children with periventricular leukomalacia. The lack of major alterations on conventional MRI does not exclude the possibility of malfunctioning of higher visual processing systems, expressing itself through discrete CVDs. Possible mechanisms underlying these neuropsychological deficits are discussed.

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Section: Discussionmentioning

confidence: 75%

mentioning

confidence: 99%

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Cognitive visual dysfunctions in preterm children with periventricular leukomalacia

Fazzi

Bova

Giovenzana

et al. 2009

Develop Med Child Neuro

Self Cite

162

154

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“…21 Also, upper limb dysfunction in spastic diplegia is well described, and children with diplegia often have difficulties with neurological function that affects upper limb bimanual skills, such as a high prevalence of visual-perceptual dysfunction. 22,23 The measure of upper limb function used in this register is crude and there are no data on its validity or reliability. However, it is useful as a descriptive measure, and the prevalence of dysfunction described would suggest that applying validated tools to this population is likely to find morbidity in upper limb function in even the most mildly affected children.…”

Section: Discussionmentioning

confidence: 99%

Motor function in 5‐year‐old children with cerebral palsy in the South Australian population

Rice

Russo

Halbert

et al. 2009

Develop Med Child Neuro

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The aim of this study was to describe the motor function of a population of children at age 5 years enrolled on the South Australian Cerebral Palsy Register. Among children born between 1993 and 1998, there were 333 with confirmed cerebral palsy (prevalence rate 2.2 per 1000 live births), in whom 247 assessments (56.7% males, 43.3% females) were completed. The distribution by Gross Motor Function Classification System (GMFCS) level was: level I, 50.6%; level II, 18.2%; level III, 9.3%; level IV, 9.7%; level V, 12.1%. The most common topographical classification was spastic diplegia (38.5%), followed by spastic hemiplegia (34.8%) and spastic quadriplegia (14.6%). Abnormal movements occurred at rest or with intention in 19.4% of children. A high proportion of the population with relatively mild gross motor impairments have difficulty with everyday bimanual tasks, reinforcing the need to assess upper limb function independently of gross motor function. The use of ankle–foot orthoses was common, particularly across GMFCS levels II to IV. Further refinement is indicated for this population’s motor dataset, to include more recently described classification measures as well as future novel measures to better describe the presence of both spasticity and dystonia.

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“…O intuito inicial deste estudo era apresentar os resultados dos exames para constatar a presença de LPV como sequela do insulto neurológico, uma vez que a literatura apresenta a correlação entre PC-D e LPV (MILLER, 2002;CUNHA-FILHO, 2002;FAZZI et al, 2004;KULAK et al, 2005;TANG-WAI et al, 2006;RESIC et al, 2008;ROZE et al, 2009;FAZZI et al, 2009;RHA et al, 2011;AL TAWILL et al, 2012;BALLOT et al, 2012;CASTRO et al, 2012) Entretanto, isto não foi possível.…”

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Análise do desempenho do vocabulário receptivo e expressivo em indivíduos com Paralisia Cerebral do tipo diplegia

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Visual–perceptual impairment in children with periventricular leukomalacia

Cited by 119 publications

References 22 publications

Cognitive visual dysfunctions in preterm children with periventricular leukomalacia

Cognitive visual dysfunctions in preterm children with periventricular leukomalacia

Motor function in 5‐year‐old children with cerebral palsy in the South Australian population

Análise do desempenho do vocabulário receptivo e expressivo em indivíduos com Paralisia Cerebral do tipo diplegia

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