A minimally-invasive surgery may help reduce the painful swelling of lymphedema--a painful fluid build-up that affects around 30 percent of breast cancer patients. Researchers in Texas found that a procedure called a lymphaticovenular bypass--which reroutes the fluid build-up--reduced lymphedema swelling in study participants by 25 to 39 percent within one year. Experts say that the procedure does not cure the condition, but it may ease the pain, swelling, and weakness experienced by sufferers.