In this single crossover trial, 61 patients with postmastectomy lymphedema were randomized to receive placebo, one cycle of LLLT, or two cycles of LLLT to the axillary region of their affected arm.

• 在这项单一交叉试验中，乳房切除术之后的61名个患者出现淋巴水肿，他们经由随机化在出现病灶的腋窝，进行安慰剂手术、LLLT一个周期或二个周期。