AIM: To evaluate the efficacy of whole brain radiotherapy (WBRT) with or without other treatments in patients (pts) with 1-3 brain metastases (BM). MATERIALS AND METHODS: Toxicities and survival of 134 pts treated between 2009 and 2013 with WBRT alone (58 pts), WBRT plus surgery (SUR-WBRT: 42 pts) or WBRT followed by stereotactic or integrated boost radiotherapy (SRT-WBRT: 34 pts) were analyzed. Differences in toxicity (acute and late) incidence and in overall (OS), disease-free (DFS) and disease-specific survival (DSS) were evaluated (χ(2)-test, uni- and multivariate analysis). RESULTS: Pts given intensified treatments (SUR- and SBRT-WBRT) had better 3-month local response compared to WBRT alone group (p < 0.045). Better 1-year local control was evident only in SRT-WBRT pts (p < 0.035). Univariate OS analysis confirmed, as favorable prognostic factors, RPA class I (p < 0.001), GPA class III and IV (p < 0.001), single metastasis (p = 0.045), stable primary disease (p = 0.03), intensified treatment (p = 0.000), systemic therapy after radiotherapy (p = 0.04) and response of metastatic lesions (p = 0.002). At multivariate analysis, OS was better in RPA class I pts (p = 0.002), who had more aggressive radiotherapy treatments (p = 0.001), chemotherapy after radiotherapy (p < 0.001) and response to RT (p = 0.003). Response to radiotherapy (p = 0.002) and BM number (p < 0.001) resulted independently prognostic for DFS. About 60 % of patients had mild acute toxicity (G1), especially headache (51 %) and fatigue (34 %); only 2 patients (2 %) had severe (G3) headache and 5 patients (4 %) severe fatigue (G3) reversible with oral steroids. No differences were evident between the different treatment groups. Among 80 pts followed up with MRI, 12 (15 %) had leukoencephalopathy (equally distributed across subgroups) and 5 (6 %) radionecroses, 4/5 asymptomatic, 5/5 in pts given intensified treatments. CONCLUSIONS: This analysis confirms the known prognostic factors for BM, emphasizing the importance of intensified treatments in a population with favorable features.
AIM: To evaluate the efficacy of whole brain radiotherapy (WBRT) with or without other treatments in patients (pts) with 1-3 brain metastases (BM). MATERIALS AND METHODS:Toxicities and survival of 134 pts treated between 2009 and 2013 with WBRT alone (58 pts), WBRT plus surgery (SUR-WBRT: 42 pts) or WBRT followed by stereotactic or integrated boost radiotherapy (SRT-WBRT: 34 pts) were analyzed. Differences in toxicity (acute and late) incidence and in overall (OS), disease-free (DFS) and disease-specific survival (DSS) were evaluated (χ(2)-test, uni- and multivariate analysis). RESULTS: Pts given intensified treatments (SUR- and SBRT-WBRT) had better 3-month local response compared to WBRT alone group (p < 0.045). Better 1-year local control was evident only in SRT-WBRT pts (p < 0.035). Univariate OS analysis confirmed, as favorable prognostic factors, RPA class I (p < 0.001), GPA class III and IV (p < 0.001), single metastasis (p = 0.045), stable primary disease (p = 0.03), intensified treatment (p = 0.000), systemic therapy after radiotherapy (p = 0.04) and response of metastatic lesions (p = 0.002). At multivariate analysis, OS was better in RPA class I pts (p = 0.002), who had more aggressive radiotherapy treatments (p = 0.001), chemotherapy after radiotherapy (p < 0.001) and response to RT (p = 0.003). Response to radiotherapy (p = 0.002) and BM number (p < 0.001) resulted independently prognostic for DFS. About 60 % of patients had mild acute toxicity (G1), especially headache (51 %) and fatigue (34 %); only 2 patients (2 %) had severe (G3) headache and 5 patients (4 %) severe fatigue (G3) reversible with oral steroids. No differences were evident between the different treatment groups. Among 80 pts followed up with MRI, 12 (15 %) had leukoencephalopathy (equally distributed across subgroups) and 5 (6 %) radionecroses, 4/5 asymptomatic, 5/5 in pts given intensified treatments. CONCLUSIONS: This analysis confirms the known prognostic factors for BM, emphasizing the importance of intensified treatments in a population with favorable features.
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