Does Axillary Boost Increase Lymphedema Compared With Supraclavicular Radiation Alone After Breast Conservation?

LE predictors included number of LNs dissected, RNI, obesity index, and systemic therapy. LE risk increased when a SC or PAB were added in the N1 subgroup. In the N2 patients, a PAB increased the risk over B+SC. The decision to boost the axilla must be weighed against the increased risk of LE that it imposes.