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Erschienen in: Journal of Neuro-Oncology 2/2024

14.02.2024 | Research

The role of spine stereotactic radiosurgery for patients with breast cancer metastases

verfasst von: Suchet Taori, Samuel Adida, Anthony Tang, Akshath Rajan, Roberta K. Sefcik, Steven A. Burton, John C. Flickinger, Pascal O. Zinn, Peter C. Gerszten

Erschienen in: Journal of Neuro-Oncology | Ausgabe 2/2024

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Abstract

Purpose

Breast cancer that metastasizes to the spine is associated with low quality of life and poor survival. Radiosurgery has an increasing role in this patient population. This single-institution (2003–2023) study analyzes clinical outcomes and prognostic factors for patients who underwent spinal stereotactic radiosurgery (SSRS) for metastatic breast cancer.

Methods

Ninety patients (155 unique breast cancer spinal metastases) were treated with SSRS. The median age was 57 years (range: 35–88), and the median KPS was 80 (range: 40–100). Forty-two (27%) lesions were managed surgically prior to radiosurgery. At SSRS, 75 (48%) lesions impinged or compressed the spinal cord per the epidural spinal cord scale (ESCC). Seventy-nine (51%) lesions were categorized as potentially unstable or unstable by the Spinal Instability Neoplastic Score (SINS).

Results

The median follow-up was 15 months (range: 1–183). The median single-session tumor volume was 25.4 cc (range: 2–197), and the median single-fraction prescription dose was 17 Gy (range: 12–25). Seven (5%) lesions locally progressed. The 1-, 2-, and 5-year local control rates were 98%, 97%, and 92%, respectively. The median overall survival (OS) for the cohort was 32 months (range: 2–183). The 1-, 2-, and 5-year OS rates were 72%, 53%, and 30%, respectively. On univariate analysis, KPS ≥ 80 (p = 0.009, HR: 0.51, 95% CI: 0.31–0.84) was associated with improved OS. Patient-reported pain improved (68%), remained stable (29%), or worsened (3%) following radiosurgery. Fifteen (10%) radiation-induced toxicities were reported.

Conclusions

Spinal radiosurgery is a safe and highly effective long-term treatment modality for metastases to the spine that originate from breast cancer.
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Metadaten
Titel
The role of spine stereotactic radiosurgery for patients with breast cancer metastases
verfasst von
Suchet Taori
Samuel Adida
Anthony Tang
Akshath Rajan
Roberta K. Sefcik
Steven A. Burton
John C. Flickinger
Pascal O. Zinn
Peter C. Gerszten
Publikationsdatum
14.02.2024
Verlag
Springer US
Erschienen in
Journal of Neuro-Oncology / Ausgabe 2/2024
Print ISSN: 0167-594X
Elektronische ISSN: 1573-7373
DOI
https://doi.org/10.1007/s11060-024-04599-1

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