Measuring and Mapping Cognitive Decline After Brain Radiosurgery

The MoCA is a brief tool developed to screen mild cognitive impairment and has been validated in patients aged 55-85 years old. It has been tested and validated in patients with brain metastases, and its acceptability has been tested in the general brain tumour population. The paper version of the MoCA is available in nearly 100 languages. The online version is available currently in 5 languages.

The EORTC-QLQ-C30 is a quality-of-life questionnaire that was developed by the European Organisation for Research and Treatment of Cancer (EORTC) for use in clinical trials. It is a 30-item questionnaire that incorporates the following five scales: physical, role, cognitive, emotional and social. It has also been validated and is available in more than 100 languages. The EORTC-QLQ-BN20 is a questionnaire that was developed for use specifically with patients that have brain cancer. The BN20 is a 20-item questionnaire and addresses four different scales (multi-item): future uncertainty, visual disorder, motor dysfunction and communication deficit. There are seven items that assess physical symptoms: headaches, seizures, drowsiness, hair loss, itchy skin, weakness of legs and bladder control. The questionnaire has been validated in over 15 languages. The two questionnaires are meant to complement each other when used in patients with brain cancer.

This is a Standard of Care treatment for all the patients that will be recruited in both cohorts. Stereotactic radiosurgery will be delivered to one or more sites and in the prospective cohort can be delivered more than once.