Key clinical point: Rates of local recurrence were higher with accelerated partial breast irradiation (APBI) than whole breast irradiation (WBI) in patients receiving breast-conservation treatment for early-stage breast cancer. Rate of distant metastasis, overall survival (OS), and disease-free survival (DFS) were similar.
Major finding: Patients receiving APBI vs. WBI had significantly higher rates of local recurrence (hazard ratio [HR], 1.46; P = .0002). DFS (HR, 1.11; P = .09), OS (HR, 1.11; P = .09), and distant metastasis (HR, 1.17; P = .11) were not different between the groups.
Study details : Findings are from a meta-analysis of 10 randomized controlled trials including 15,500 patients with early-stage breast cancer, including 7,758 patients in APBI and 7,742 patients in WBI groups.
Disclosures: No funding source was identified. The authors declared no conflicts of interest.
Source: Xiang X et al. Radiat Oncol. 2021 Feb 2. doi: 10.1186/s13014-021-01752-2 .