Postural balance in pediatric posterior fossa tumor survivors: Through impairments to rehabilitation possibilities.

BACKGROUND

The rehabilitation after pediatric brain tumors is a pressing issue in current neuro-oncology. The purpose of this study was to reveal the peculiarities of postural stability in pediatric posterior fossa tumor survivors as compared to the healthy controls. Additionally, we aimed to determine the feasibility of the balance biofeedback training for these patients.

METHODS

We measured 6 postural stability parameters with the eyes opened and closed in 35 patients and 25 healthy controls aged 7-17. Further, the patients were divided into two groups: the intervention and waitlist. The intervention group was the first to undergo a 2-week biofeedback training designed to enhance balance control, while the waitlist group performed only the usual exercises. Then the groups were interchanged. Pre- and post-stability scores were measured in each condition.

FINDINGS

The current results suggest the pronounced deficiency of stability in the patients. Their results in both opened and closed eyes conditions were similar. The post-training measurements revealed that some stability parameters were improved: ellipse square and mean root square oscillations in the frontal and sagittal planes.

INTERPRETATION

The patients predictably demonstrated the significantly worse stability measurements as compared to the healthy controls. Moreover, they were shown not to use visual information to correct postural balance thus prompting us to assume severe deficits of the eye movements control due to the cerebellar pathology. This specificity, as well as the post-training significant improvement, emphasizes the clinical necessity to consider them when designing the rehabilitation protocols for posterior fossa tumor survivors.