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Prognostic factors for survival of women with unstable spinal bone metastases from breast cancer

Förster, Robert ; Bruckner, Thomas ; Bostel, Tilman ; Schlampp, Ingmar ; Debus, Jürgen ; Rief, Harald

In: Radiation oncology, 10 (2015), Nr. 144. pp. 1-4. ISSN 1748-717X

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Download (401kB) | Lizenz: Creative Commons LizenzvertragPrognostic factors for survival of women with unstable spinal bone metastases from breast cancer by Förster, Robert ; Bruckner, Thomas ; Bostel, Tilman ; Schlampp, Ingmar ; Debus, Jürgen ; Rief, Harald underlies the terms of Creative Commons Attribution 3.0 Germany

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Abstract

Background: Bone metastases are an important clinical issue in women with breast cancer. Particularly, unstable spinal bone metastases (SBM) are a major cause of severe morbidity and reduced quality of life (QoL) due to frequent immobilization. Radiotherapy (RT) is the major treatment modality and is capable of promoting re-ossification and improving stability. Since local therapy response is excellent, survival of these patients with unstable SBM is of high clinical importance. We therefore conducted this analysis to assess survival and to determine prognostic factors for bone survival (BS) in women with breast cancer and unstable SBM. Methods: A total population of 92 women with unstable SBM from breast cancer who were treated with RT at our department between January 2000 and January 2012 was retrospectively investigated. We calculated overall survival (OS) and BS (time between first diagnosis of bone metastases until death) with the Kaplan-Meier method and assessed prognostic factors for BS with a Cox regression model. Results: Mean age at first diagnosis of breast cancer was 60.8 years ± SD 12.4 years. OS after 1, 2 and 5 years was 84.8, 66.3 and 50 %, respectively. BS after 1, 2 and 5 years was 62.0, 33.7 and 12 %, respectively. An age > 50 years (p < .001; HR 1.036 [CI 1.015–1.057]), the presence of a single bone metastasis (p = .002; HR 0.469 [CI 0.292–0.753]) and triple negative phenotype (p < .001; HR 1.068 [CI 0.933–1.125]) were identified as independent prognostic factors for BS. Conclusions: Our analysis demonstrated a short survival of women with breast cancer and unstable SBM. Age, presence of a solitary SBM and triple-negative phenotype correlated with survival. Our results may have an impact on therapeutic decisions in the future and offer a rationale for future prospective investigations.

Item Type: Article
Journal or Publication Title: Radiation oncology
Volume: 10
Number: 144
Publisher: BioMed Central
Place of Publication: London
Date Deposited: 25 Nov 2015 10:29
Date: 2015
ISSN: 1748-717X
Page Range: pp. 1-4
Faculties / Institutes: Medizinische Fakultät Heidelberg > Radiologische Universitätsklinik
Medizinische Fakultät Heidelberg > Institut für Medizinische Biometrie und Informatik
Subjects: 610 Medical sciences Medicine
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