%0 Journal Article %T Brain Reorganization following Intervention in Children with Congenital Hemiplegia: A Systematic Review %A E. Inguaggiato %A G. Sgandurra %A S. Perazza %A A. Guzzetta %A G. Cioni %J Neural Plasticity %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/356275 %X Noninvasive rehabilitation strategies for children with unilateral cerebral palsy are routinely used to improve hand motor function, activity, and participation. Nevertheless, the studies exploring their effects on brain structure and function are very scarce. Recently, structural neuroplasticity was demonstrated in adult poststroke patients, in response to neurorehabilitation. Our purpose is to review current evidence on the effects of noninvasive intervention strategies on brain structure or function, in children with unilateral cerebral palsy. The main literature databases were searched up to October 2013. We included studies where the effects of upper limb training were evaluated at neurofunctional and/or neurostructural levels. Only seven studies met our selection criteria; selected studies were case series, six using the intervention of the constraint-induced movement therapy (CIMT) and one used virtual reality therapy (VR). CIMT and VR seem to produce measurable neuroplastic changes in sensorimotor cortex associated with enhancement of motor skills in the affected limb. However, the level of evidence is limited, due to methodological weaknesses and small sample sizes of available studies. Well-designed and larger experimental studies, in particular RCTs, are needed to strengthen the generalizability of the findings and to better understand the mechanism of intervention-related brain plasticity in children with brain injury. 1. Introduction Unilateral cerebral palsy (U-CP) is the most common type of cerebral palsy (CP), with an incidence of 1 in 1000 live-births [1]. Typically, the upper limb (UL) is more involved than the lower, with impairments of spasticity, sensation, and reduced strength. Effective use of the arm and hand to reach, grasp, release, and manipulate objects is often compromised. Children with hemiplegia usually have the intellectual capacity to attend regular school; however, impaired arm function restricts their participation in educational, leisure, and later vocational roles [2]. U-CP can result from a wide variety of brain lesions, with respect to the timing of insults (acquired during the pre-, peri- or postnatal period), and the type of structural pathology (brain malformations, periventricular lesions, and corticosubcortical lesions) [3]. U-CP often leads to delays in motor development or deconditioning of the affected limb, as individuals are inclined to functional compensation with the intact limb rather than attempting to use the involved limb [4]; this may result in suppression of development of cortical representation %U http://www.hindawi.com/journals/np/2013/356275/