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Clinical Outcomes of Stereotactic Body Radiotherapy (SBRT) for Oligometastatic Patients with Lymph Node Metastases from Gynecological Cancers

Background: To evaluate clinical outcomes of stereotactic body radiation therapy (SBRT) as a local treatment for lymph node metastases from gynecological cancers. Methods: Between November 2007 and October 2021, we retrospectively analyzed 29 lymph node metastases in 22 oligometastatic/oligoprogress...

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Detalles Bibliográficos
Autores principales: Facondo, Giuseppe, Vullo, Gianluca, De Sanctis, Vitaliana, Rotondi, Margherita, Sigillo, Riccardo Carlo, Valeriani, Maurizio, Osti, Mattia Falchetto
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9965700/
https://www.ncbi.nlm.nih.gov/pubmed/36836463
http://dx.doi.org/10.3390/jpm13020229
Descripción
Sumario:Background: To evaluate clinical outcomes of stereotactic body radiation therapy (SBRT) as a local treatment for lymph node metastases from gynecological cancers. Methods: Between November 2007 and October 2021, we retrospectively analyzed 29 lymph node metastases in 22 oligometastatic/oligoprogressive patients treated with SBRT. The Kaplan–Meier method was used to estimate the rates survival. Univariate analysis for prognostic factors were performed with the log-rank test, and Cox proportional hazards regression was used to estimate hazard ratios (HR). Results: Median age was 62 years (IQR, 50–80 years). Median follow-up was 17 months (IQR 10.5–31 months). The median survival was 22 months (CI 95%: 4.2–39.7, IQR: 12.5–34.5 months). Six months, one year and two year overall survival (OS) were 96.6%, 85.2%, and 48.7%, respectively. Median local control (LC) was not reached. Six months, 1one year and 2 year were 93.1%, 87.9%, and 79.9%, respectively. Distant metastasis free survival (DMFS) at one year, and two year was 53% and 37.1%, respectively Four patients (18%) experienced acute G1–G2 toxicities. No G3–4 acute toxicity was reported, and no late toxicity was observed. Conclusions: SBRT for lymph node recurrence offers excellent in-field tumor control with safe profile and low toxicities. Size, number of oligometastases, and time primary tumor to RT seem to be significant prognostic factors.