Diana D Shi1, Yu-Hui Chen2, Tai Chung Lam3, Dana Leonard4, Tracy Anne Balboni5, Andrew Schoenfeld6, Sonia Skamene5, Daniel N Cagney5, John H Chi7, Charles H Cho8, Mitchel Harris6, Marco L Ferrone6, Lauren M Hertan9. 1. Department of Radiation Oncology, Brigham and Women's Hospital/Dana-Farber Cancer Institute, 75 Francis Street, Boston, MA, USA; Harvard Medical School, 25 Shattuck St, Boston, MA, USA. 2. Dana-Farber Cancer Institute, 450 Brookline Ave, Boston, MA, USA. 3. Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 21, Hong Kong. 4. Departmenet of Orthopedic Surgery, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, USA. 5. Department of Radiation Oncology, Brigham and Women's Hospital/Dana-Farber Cancer Institute, 75 Francis Street, Boston, MA, USA. 6. Harvard Medical School, 25 Shattuck St, Boston, MA, USA; Departmenet of Orthopedic Surgery, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, USA. 7. Harvard Medical School, 25 Shattuck St, Boston, MA, USA; Departmenet of Neurosurgery, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, USA. 8. Harvard Medical School, 25 Shattuck St, Boston, MA, USA; Department of Radiology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, USA. 9. Department of Radiation Oncology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA, USA. Electronic address: lhertan@bidmc.harvard.edu.
Abstract
BACKGROUND CONTEXT: Predicting survival outcomes after radiation therapy (RT) alone for metastatic disease of the spine is a challenging task that is important to guiding treatment decisions (eg, determining dose fractionation and intensity). The New England Spinal Metastasis Score (NESMS) was recently introduced and validated in independent cohorts as a tool to predict 1-year survival following surgery for spinal metastases. This metric is composed of three factors: preoperative albumin, ambulatory status, and modified Bauer score, with the total score ranging from 0 to 3. PURPOSE: The purpose of this study was to assess the applicability of the NESMS model to predict 1-year survival among patients treated with RT alone for spinal metastases. STUDY DESIGN/ SETTING: This study is a retrospective analysis. PATIENT SAMPLE: This sample included 290 patients who underwent conventional RT alone for spinal metastases. OUTCOME MEASURES: Patients' NESMS (composed of ambulatory status, pretreatment serum albumin, and modified Bauer score) were assessed, as well as their 1-year overall survival rates following radiation for metastatic disease of the spine. MATERIALS AND METHODS: This study is a single-institution retrospective analysis of 290 patients treated with conventional radiation alone for spinal metastases from 2008 to 2013. The predictive value of the NESMS was assessed using multivariable logistic regression modeling, adjusted for potential confounding variables. RESULTS: This analysis indicated that patients with lower NESMSs had higher rates of 1-year mortality. Multivariable analysis demonstrated a strong association between lower NESMSs and lower rates of survival. CONCLUSIONS: The NESMS is a simple prognostic scheme that requires clinical data that are often readily available and have been validated in independent cohorts of surgical patients. This study serves to validate the utility of the NESMS composite score to predict 1-year mortality in patients treated with radiation alone for spinal metastases.
BACKGROUND CONTEXT: Predicting survival outcomes after radiation therapy (RT) alone for metastatic disease of the spine is a challenging task that is important to guiding treatment decisions (eg, determining dose fractionation and intensity). The New England Spinal Metastasis Score (NESMS) was recently introduced and validated in independent cohorts as a tool to predict 1-year survival following surgery for spinal metastases. This metric is composed of three factors: preoperative albumin, ambulatory status, and modified Bauer score, with the total score ranging from 0 to 3. PURPOSE: The purpose of this study was to assess the applicability of the NESMS model to predict 1-year survival among patients treated with RT alone for spinal metastases. STUDY DESIGN/ SETTING: This study is a retrospective analysis. PATIENT SAMPLE: This sample included 290 patients who underwent conventional RT alone for spinal metastases. OUTCOME MEASURES: Patients' NESMS (composed of ambulatory status, pretreatment serum albumin, and modified Bauer score) were assessed, as well as their 1-year overall survival rates following radiation for metastatic disease of the spine. MATERIALS AND METHODS: This study is a single-institution retrospective analysis of 290 patients treated with conventional radiation alone for spinal metastases from 2008 to 2013. The predictive value of the NESMS was assessed using multivariable logistic regression modeling, adjusted for potential confounding variables. RESULTS: This analysis indicated that patients with lower NESMSs had higher rates of 1-year mortality. Multivariable analysis demonstrated a strong association between lower NESMSs and lower rates of survival. CONCLUSIONS: The NESMS is a simple prognostic scheme that requires clinical data that are often readily available and have been validated in independent cohorts of surgical patients. This study serves to validate the utility of the NESMS composite score to predict 1-year mortality in patients treated with radiation alone for spinal metastases.
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