The European Society of Paediatric Oncology Ependymoma-II program Core-Plus model: Development and initial implementation of a cognitive test protocol for an international brain tumour trial

It is increasingly accepted that survival alone is an inadequate measure of the success of childhood brain tumour treatments. Consequently, there is growing emphasis on capturing quality of survival. Ependymomas are the third most frequently occurring brain tumours in childhood and present significant clinical challenges. European Society of Paediatric Oncology Ependymoma II is a comprehensive international program aiming to evaluate outcomes under different treatment regimens and improve diagnostic accuracy. Importantly, there has been agreement to lower the age at which children with posterior fossa ependymoma undergo focal irradiation from three years to either eighteen months or one year of age. Hitherto radiotherapy in Europe had been reserved for children over three years due to concerns over adverse cognitive outcomes following irradiation of the developing brain. There is therefore a duty of care to include longitudinal cognitive follow-up and this has been agreed as an essential trial outcome. Discussions between representatives of 18 participating European countries over 10 years have yielded European consensus for an internationally accepted test battery for follow-up of childhood ependymoma survivors. The 'Core-Plus' model incorporates a two-tier approach to assessment by specifying core tests to establish a minimum dataset where resources are limited, whilst maintaining scope for comprehensive assessment where feasible. The challenges leading to the development of the Core-Plus model are presented alongside learning from the initial stages of the trial. We propose that this model could provide a solution for future international trials addressing both childhood brain tumours and other conditions associated with cognitive morbidity.

Improving access to pediatric neurorehabilitation for patients with moderate and severe head injuries

INTRODUCTION

The majority of severely injured children in England have a significant head injury and will be seen in Major Trauma Centers (MTCs). The period following brain injury represents an opportunity to influence recovery of neurological function. The study sought to determine whether children who had sustained a head injury were referred for neurorehabilitation.

METHOD

The study was conducted over one year at one center. Children sustaining a moderate or severe head injury were identified and compared to those referred for neurorehabilitation.

RESULTS

A total of 41 patients were identified; 16/41 (39%) were referred for neurorehabilitation. Group comparison revealed significant associations between referral status and age (X²(3) = 8.35, p = 0.039), injury mechanism (X²(1) = 8.12, p = 0.017), injury severity (X²(1) = 21.3, p < 0.000), and imaging findings (X²(1) = 11.71, p = 0.001).

DISCUSSION

Data reveal concerns for access to neurorehabilitation. Improved access to neurorehabilitation permitting long-term follow-up is required. The establishment of MTCs provides an opportunity to enact this.

Interventions for managing weight change following paediatric acquired brain injury: a systematic review

OBJECTIVE

To systematically review literature reporting interventions for weight change following paediatric acquired brain injury (ABI).

METHOD

A systematic search of the literature was conducted using advanced search techniques. The retrieval identified 1562 papers, of which 30 were relevant. The total number of paediatric participants was 759.

RESULTS

There is a paucity of higher quality evidence to support the use of weight change interventions following paediatric ABI. Substantial variation in screening, outcome measures, intervention, and reporting were demonstrated. Some support was found for the use of hypothalamic-sparing surgery as a method to prevent obesity following craniopharyngioma resection.

INTERPRETATION

There is a need for further study in this area to inform clinical and research practice; recommendations are given.

Effectiveness of melatonin for sleep impairment post paediatric acquired brain injury: evidence from a systematic review

OBJECTIVE

To retrieve and review all the relevant literature describing the administration of melatonin to treat impaired sleep in children following acquired brain injury (ABI).

METHODS

A systematic search and retrieval of the literature was conducted using advanced search techniques. The retrieval identified 589 papers, seven of which were relevant. Review/outcomes criteria were developed and study quality was determined.

RESULTS

There is paucity of high-quality evidence to support use of melatonin for sleep impairment post paediatric ABI. Variation in dosage, screening and outcome measures, data reporting and a lack of impairment delineation and treatment stratification were recurrent themes.

CONCLUSION

Retrieved evidence for the effectiveness of melatonin for post paediatric ABI sleep impairment appears promising. There is a clear need for further study in this area to inform clinical and research practices. Recommendations are given.

Cause and outcome of cerebellar mutism: evidence from a systematic review

PURPOSE

Cerebellar mutism is a serious neurosurgical complication after posterior fossa surgery, but the cause, incidence and outcome remain incompletely defined. The aim of this paper was to identify and review all reports of this phenomenon to better delineate and improve the evidence base.

METHODS

A systematic search and retrieval of databases was conducted using advanced search techniques. Review/outcomes criteria were developed, and study quality was determined.

RESULTS

The retrieval identified 2,281 papers of which 96 were relevant, identifying 650 children with cerebellar mutism. Causative factors, clinical features and outcomes were reported variably; papers focussed on multiple areas, the majority reporting incidence in single or series of case studies with little or no analysis further than description.

CONCLUSIONS

The complexity and variability of data reporting, likely contributing factors and outcomes make cerebellar mutism difficult to predict in incidence and the degree of impact that may ensue. A clear and accepted universal definition would help improve reporting, as would the application of agreed outcome measures. Clear and consistent reporting of surgical technique remains absent. Recommendations for practice are provided.

Clinical reasoning and investigations for resective surgery for medically refractory epilepsies in children

The article presents results of a UK survey of pediatric neurologists' views regarding resective surgery for medically refractory epilepsies in children. In contrast to surveys with adult neurologists, the findings indicate that delays to surgery in the pediatric field are not likely to be due to clinicians' views. There is, however, variability in clinicians' opinions as to what constitutes medically refractory epilepsy, variability in the factors reported as necessary for surgery eligibility, and uncertainty as to how these concepts should be defined. The survey highlights the need for elucidation of the epilepsy surgery process for pediatric patients, clear communication between epilepsy surgery centers and referring neurologists, and dissemination of consensus guidelines relating to the criteria for both medically refractory epilepsy and surgery eligibility.