Abstract
Objective
To evaluate prognostic factors associated with local control and disease-free-survival (DFS) of oligometastatic breast cancer patients treated by percutaneous thermal ablation (PTA).
Materials and Methods
Seventy-nine consecutive patients (54.5 ± 11.2 years old) with 114 breast cancer metastases (28.9 ± 16.1 mm in diameter), involving the lungs, the liver, and/or the bone, were treated using PTA with a curative intent. The goal was to achieve a complete remission in association with systemic chemotherapy and hormonal therapy. We retrospectively evaluated the prognostic factors associated with 1- and 2-year local control and the 1- and 2-year DFS rates.
Results
The 1- and 2-year local control rates were 83.0 and 76.1 %, respectively. Tumor burden was associated with a poorer outcome for local control after PTA (HR 1.027 by additional millimeter, p = 0.026; >4 cm HR 3.90). The 1- and 2-year DFS rates were 54.2 and 30.4 %, respectively. In multivariate analysis, triple-negative histological subtype and increased size of treated metastases were associated with a poorer DFS (HR 2.22; 95 % CI [1.13–4.36]; p = 0.02 and HR 2.43; 95 % CI [1.22–4.82]; p = 0.011, respectively).
Conclusion
PTA is effective for local control of breast cancer oligometastases. Tumor burden >4 cm and triple-negative histological subtype are associated with a poorer outcome.
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Abbreviations
- PTA:
-
Percutaneous thermal ablation
- DFS:
-
Disease-free survival
- CT:
-
Computed tomography
- MRI:
-
Magnetic resonance imaging
- FDG-PET:
-
Fluoro-deoxy-glucose positron emission tomography
- OS:
-
Overall survival
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All authors of the manuscript: Barral Matthias, Aupérin Anne, Hakimé Antoine, Cartier Victoire, Tacher Vania, Otmezguine Yves, Tselikas Lambros, de Baere Thierry, and Deschamps Frédéric have nothing to disclose.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This article does not contain any studies with animals performed by any of the authors.
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Barral, M., Auperin, A., Hakime, A. et al. Percutaneous Thermal Ablation of Breast Cancer Metastases in Oligometastatic Patients. Cardiovasc Intervent Radiol 39, 885–893 (2016). https://doi.org/10.1007/s00270-016-1301-x
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DOI: https://doi.org/10.1007/s00270-016-1301-x