Intense Physiotherapies to Improve Function in Young Children With Cerebral Palsy

Cerebral palsy (CP) is a non-progressive disorder caused by an insult or injury to the brain when the brain is most rapidly developing and which results in some motor dysfunction. Causes for the injury to the brain are numerous and can occur prior to birth, during the birth process, or within the first few months following birth. The motor dysfunction can involve any or all four extremities but most often affects the legs, causing abnormal ambulation. The level of severity depends on the extent of the injury to the brain and can be mild to severe. In severe instances, the child is dependent on others for all his/her care.

There is no known cure for CP, but physical and occupational therapies are administered in an attempt to improve function. The frequency of these therapies varies from once a week (the standard of care in the Western Hemisphere) to five times a week (the standard of care in Asia and some Eastern European countries). The current understanding of brain plasticity offers a theoretical explanation to justify the more intense approach. Active repetitive motor skill-directed rehabilitation utilizes the plasticity of the brain and can restore some function. Intense active physiotherapy can stimulate non-injured but 'dormant' neurons and prevent their 'natural' degeneration in order for them to substitute for the function of injured neurons. It is the very young brain that is most likely to respond to this therapy.

The aim of this proposal is to evaluate the effect of administering both physical and occupational therapy five times each week for 12 weeks and compare it with the standard of care (SOC) approach of one time each week in children between the ages of 12 months and 36 months. This is the first randomized crossover trial to both enroll this young a population of children with cerebral palsy as well as to evaluate this approach from both the therapists and the parents perspectives. The number of children that this study will enroll is larger than in most CP studies. The children will be evaluated clinically with two validated instruments, one of which was designed specifically for children with CP and is administered and scored by certified therapists and the other which was designed for children with developmental disabilities and is scored by the child's care provider. A sub-set of children will have a special type of MRI to evaluate any changes in the neurological structure of the brain.

The Department of Pediatrics at the University of Arizona recently completed a collaborative study with the Neurologic Department at the Beijing Children's Hospital where the intense approach of five therapies per week is the SOC. The positive results prompted another investigation to determine if such an approach would be feasible in the United States. A compliance rate of 81% confirmed feasibility and the perception that parents who have a child diagnosed with CP will do whatever they can to improve their child's motor function.