Introduction: Metastatic spinal cord compression (MSCC) can be debilitating and painful and carries a poor prognosis. There is increasing evidence that MSCC can be treated with single-fraction radiotherapy. The Rades score is designed to assist in identifying better prognosis patients who may benefit from longer radiotherapy courses. This study aims to study patterns of care for MSCC at a single center in New Zealand, and assess the Rades score and other variables as predictors of survival.
Methods: An audit of patients receiving palliative radiotherapy for MSCC at a single center over a 5- year period (2010-2014) was performed. Independent variables and the Rades score were gathered for each patient for statistical analysis to investigate associations between potential prognostic factors, treatments and survival.
Results: A total of 83 patients underwent analysis. Median overall survival was 14 weeks. Twenty Gray in five fractions (20 Gy/5) was the most frequently delivered radiotherapy course (89%). The simplified Rades score effectively stratified patients with Group 3 patients having significantly better survival with 40% surviving to 6 months compared to Group 1 and 2. Cancer type, receiving chemotherapy and receiving surgery were also significantly associated with survival.
Conclusion: Overall survival at our centre is consistent with other published series. The Rades score is valid for predicting more prolonged survival in our population and could be used in selecting patients for longer radiotherapy courses.
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