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Prognostic factors in a series of 504 breast cancer patients with metastatic spinal cord compression

Background This study was performed to identify new significant prognostic factors in breast cancer patients irradiated for metastatic spinal cord compression (MSCC). Patients and methods The data of 504 patients with breast cancer patients with MSCC were retrospectively analyzed with respect to pos...

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Published in:Strahlentherapie und Onkologie 2012-04, Vol.188 (4), p.340-345
Main Authors: Rades, D., Douglas, S., Veninga, T., Stalpers, L.J.A., Bajrovic, A., Rudat, V., Schild, S.E.
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description Background This study was performed to identify new significant prognostic factors in breast cancer patients irradiated for metastatic spinal cord compression (MSCC). Patients and methods The data of 504 patients with breast cancer patients with MSCC were retrospectively analyzed with respect to posttreatment motor function, local control of MSCC, and survival. The investigated potential prognostic factors included age, Eastern Cooperative Oncology Group (ECOG) performance score, number of involved vertebrae, other bone metastases, visceral metastases, pretreatment ambulatory status, interval from cancer diagnosis to radiotherapy of MSCC, time developing motor deficits before radiotherapy, and the radiation schedule. Results On multivariate analysis, better functional outcome was associated with ambulatory status prior to RT (estimate − 1.29, p 
doi_str_mv 10.1007/s00066-011-0061-4
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Patients and methods The data of 504 patients with breast cancer patients with MSCC were retrospectively analyzed with respect to posttreatment motor function, local control of MSCC, and survival. The investigated potential prognostic factors included age, Eastern Cooperative Oncology Group (ECOG) performance score, number of involved vertebrae, other bone metastases, visceral metastases, pretreatment ambulatory status, interval from cancer diagnosis to radiotherapy of MSCC, time developing motor deficits before radiotherapy, and the radiation schedule. Results On multivariate analysis, better functional outcome was associated with ambulatory status prior to RT (estimate − 1.29, p &lt; 0.001), no visceral metastases (estimate − 0.52, p = 0.020), and slower development of motor deficits (estimate + 2.47, p &lt; 0.001). Improved local control was significantly associated with no other bone metastases (risk ratio (RR) 4.33, 95% confidence interval (CI) 1.36–14.02, p = 0.013) and no visceral metastases (RR 3.02, 95% CI 1.42–6.40, p = 0.005). Improved survival was significantly associated with involvement of only 1–2 vertebrae (RR 1.27, 95% CI 1.01–1.60, p = 0.044), ambulatory status before radiotherapy (RR 1.75, 95% CI 1.23–2.50, p = 0.002), no other bone metastases (RR 1.93, 95% CI 1.18–3.13, p = 0.009), no visceral metastases (RR 7.60, 95% CI 5.39–10.84, p &lt; 0.001), and time developing motor deficits before radiotherapy (RR 1.55, 95% CI 1.30–1.86, p &lt; 0.001). Conclusion Several new independent prognostic factors were identified for treatment outcomes. These prognostic factors should be considered in future trials and may be used to develop prognostic scores for breast cancer patients with MSCC.</description><identifier>ISSN: 0179-7158</identifier><identifier>EISSN: 1439-099X</identifier><identifier>DOI: 10.1007/s00066-011-0061-4</identifier><identifier>PMID: 22354333</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Activities of Daily Living - classification ; Aged ; Antiemetics - administration &amp; dosage ; Breast Neoplasms - radiotherapy ; Cohort Studies ; Dexamethasone - administration &amp; dosage ; Female ; Follow-Up Studies ; Humans ; Kaplan-Meier Estimate ; Lumbar Vertebrae - radiation effects ; Magnetic Resonance Imaging ; Medicine ; Medicine &amp; Public Health ; Middle Aged ; Mobility Limitation ; Multivariate Analysis ; Neoplasm Staging ; Neurologic Examination - radiation effects ; Oncology ; Original Article ; Prognosis ; Proportional Hazards Models ; Radiotherapy ; Retrospective Studies ; Spinal Cord Compression - mortality ; Spinal Cord Compression - pathology ; Spinal Cord Compression - radiotherapy ; Spinal Neoplasms - mortality ; Spinal Neoplasms - pathology ; Spinal Neoplasms - radiotherapy ; Spinal Neoplasms - secondary ; Survival Analysis ; Thoracic Vertebrae - radiation effects ; Tomography, X-Ray Computed</subject><ispartof>Strahlentherapie und Onkologie, 2012-04, Vol.188 (4), p.340-345</ispartof><rights>Urban &amp; Vogel 2012</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c372t-db425d928a27b902e689060a1619f12d53ed0f71fd4b3d3519b1e9f47aeba9153</citedby><cites>FETCH-LOGICAL-c372t-db425d928a27b902e689060a1619f12d53ed0f71fd4b3d3519b1e9f47aeba9153</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22354333$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Rades, D.</creatorcontrib><creatorcontrib>Douglas, S.</creatorcontrib><creatorcontrib>Veninga, T.</creatorcontrib><creatorcontrib>Stalpers, L.J.A.</creatorcontrib><creatorcontrib>Bajrovic, A.</creatorcontrib><creatorcontrib>Rudat, V.</creatorcontrib><creatorcontrib>Schild, S.E.</creatorcontrib><title>Prognostic factors in a series of 504 breast cancer patients with metastatic spinal cord compression</title><title>Strahlentherapie und Onkologie</title><addtitle>Strahlenther Onkol</addtitle><addtitle>Strahlenther Onkol</addtitle><description>Background This study was performed to identify new significant prognostic factors in breast cancer patients irradiated for metastatic spinal cord compression (MSCC). Patients and methods The data of 504 patients with breast cancer patients with MSCC were retrospectively analyzed with respect to posttreatment motor function, local control of MSCC, and survival. The investigated potential prognostic factors included age, Eastern Cooperative Oncology Group (ECOG) performance score, number of involved vertebrae, other bone metastases, visceral metastases, pretreatment ambulatory status, interval from cancer diagnosis to radiotherapy of MSCC, time developing motor deficits before radiotherapy, and the radiation schedule. Results On multivariate analysis, better functional outcome was associated with ambulatory status prior to RT (estimate − 1.29, p &lt; 0.001), no visceral metastases (estimate − 0.52, p = 0.020), and slower development of motor deficits (estimate + 2.47, p &lt; 0.001). Improved local control was significantly associated with no other bone metastases (risk ratio (RR) 4.33, 95% confidence interval (CI) 1.36–14.02, p = 0.013) and no visceral metastases (RR 3.02, 95% CI 1.42–6.40, p = 0.005). Improved survival was significantly associated with involvement of only 1–2 vertebrae (RR 1.27, 95% CI 1.01–1.60, p = 0.044), ambulatory status before radiotherapy (RR 1.75, 95% CI 1.23–2.50, p = 0.002), no other bone metastases (RR 1.93, 95% CI 1.18–3.13, p = 0.009), no visceral metastases (RR 7.60, 95% CI 5.39–10.84, p &lt; 0.001), and time developing motor deficits before radiotherapy (RR 1.55, 95% CI 1.30–1.86, p &lt; 0.001). Conclusion Several new independent prognostic factors were identified for treatment outcomes. 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Patients and methods The data of 504 patients with breast cancer patients with MSCC were retrospectively analyzed with respect to posttreatment motor function, local control of MSCC, and survival. The investigated potential prognostic factors included age, Eastern Cooperative Oncology Group (ECOG) performance score, number of involved vertebrae, other bone metastases, visceral metastases, pretreatment ambulatory status, interval from cancer diagnosis to radiotherapy of MSCC, time developing motor deficits before radiotherapy, and the radiation schedule. Results On multivariate analysis, better functional outcome was associated with ambulatory status prior to RT (estimate − 1.29, p &lt; 0.001), no visceral metastases (estimate − 0.52, p = 0.020), and slower development of motor deficits (estimate + 2.47, p &lt; 0.001). Improved local control was significantly associated with no other bone metastases (risk ratio (RR) 4.33, 95% confidence interval (CI) 1.36–14.02, p = 0.013) and no visceral metastases (RR 3.02, 95% CI 1.42–6.40, p = 0.005). Improved survival was significantly associated with involvement of only 1–2 vertebrae (RR 1.27, 95% CI 1.01–1.60, p = 0.044), ambulatory status before radiotherapy (RR 1.75, 95% CI 1.23–2.50, p = 0.002), no other bone metastases (RR 1.93, 95% CI 1.18–3.13, p = 0.009), no visceral metastases (RR 7.60, 95% CI 5.39–10.84, p &lt; 0.001), and time developing motor deficits before radiotherapy (RR 1.55, 95% CI 1.30–1.86, p &lt; 0.001). Conclusion Several new independent prognostic factors were identified for treatment outcomes. These prognostic factors should be considered in future trials and may be used to develop prognostic scores for breast cancer patients with MSCC.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><pmid>22354333</pmid><doi>10.1007/s00066-011-0061-4</doi><tpages>6</tpages></addata></record>
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subjects Activities of Daily Living - classification
Aged
Antiemetics - administration & dosage
Breast Neoplasms - radiotherapy
Cohort Studies
Dexamethasone - administration & dosage
Female
Follow-Up Studies
Humans
Kaplan-Meier Estimate
Lumbar Vertebrae - radiation effects
Magnetic Resonance Imaging
Medicine
Medicine & Public Health
Middle Aged
Mobility Limitation
Multivariate Analysis
Neoplasm Staging
Neurologic Examination - radiation effects
Oncology
Original Article
Prognosis
Proportional Hazards Models
Radiotherapy
Retrospective Studies
Spinal Cord Compression - mortality
Spinal Cord Compression - pathology
Spinal Cord Compression - radiotherapy
Spinal Neoplasms - mortality
Spinal Neoplasms - pathology
Spinal Neoplasms - radiotherapy
Spinal Neoplasms - secondary
Survival Analysis
Thoracic Vertebrae - radiation effects
Tomography, X-Ray Computed
title Prognostic factors in a series of 504 breast cancer patients with metastatic spinal cord compression
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