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MRI and clinical characteristics of children with hemiplegic cerebral palsy
G Cioni1, B Sales, P B Paolicelli
1Division of Child Neurology and Psychiatry, University of Pisa, Italy.
Insights
Magnetic resonance imaging (MRI) identified four distinct lesion types in children with hemiplegic cerebral palsy. These classifications aid in understanding diverse clinical patterns and improving patient evaluation.
Area of Science:
- Neurology
- Pediatrics
- Radiology
Background:
- Hemiplegic cerebral palsy (HCP) is a common childhood neurological disorder.
- Understanding the underlying brain lesions is crucial for effective management.
Purpose of the Study:
- To classify MRI features in children with HCP into homogeneous groups.
- To correlate lesion types with clinical presentations and outcomes.
Main Methods:
- Retrospective analysis of MRI scans from 91 children with HCP.
- Clustering of MRI findings into four distinct lesion types.
- Description of clinical patterns associated with each lesion type.
Main Results:
- Four lesion types identified: brain malformations, periventricular white matter abnormalities, cortical-subcortical lesions, and non-progressive postnatal injuries.
- Left motor involvement was prevalent; bilateral lesions were common, especially in form 2.
- Seizures and mental retardation showed a strong correlation, occurring in about half of children with forms 1 and 3.
Conclusions:
- MRI is essential for categorizing brain abnormalities in HCP.
- Distinct lesion types correlate with specific clinical features, including limb involvement, seizures, and cognitive impairment.
- Classification aids in a more precise evaluation and potential therapeutic strategies for pediatric HCP.
Abstract:
Magnetic resonance imagings of 91 children with hemiplegic cerebral palsy were analysed with the aim of clustering their features into fairly homogeneous forms. In addition, the different clinical patterns of each form were described. Four main types of lesion were distinguished: form 1 (13 cases), which comprised brain malformations, form 2 (41 subjects), which grouped abnormalities of the periventricular white matter, form 3 (27 children), which was represented by cortical-subcortical lesions, and form 4 (10 subjects), which grouped non-progressive postnatal brain injuries. None of the children had normal MRI and a high incidence of bilateral lesions was found, especially in form 2. A left motor involvement was prevalent in the sample and was noted in all but the third form. The severity of impairment was mainly moderate in forms 1 and 3, mild in the others. The upper limb was found to be more affected in all forms except the second one, which presented a greater involvement of the lower limb. Mental retardation occurred in about one-third of the children with forms 1 and 4, less often in the other two. Seizures occurred in about half of the children with forms 1 or 3, while the incidence was lower in forms 4 and 2. A strong correlation between the presence of seizures and mental retardation was observed. The results of this study show the importance of MRI in the evaluation of children with hemiplegic cerebral palsy.
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