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Updated: Jun 19, 2026
05:44
Ultrasonographic Evaluation of Breast Cancer-related Lymphedema
Published on: January 12, 2017
Managing postmastectomy lymphedema with low-level laser therapy
Rufina W L Lau1, Gladys L Y Cheing
1Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong SAR, China.
Photomedicine and Laser Surgery
|November 3, 2009
Summary
Low-level laser therapy (LLLT) effectively reduced arm volume and improved tissue softening in patients with postmastectomy lymphedema (PML). These positive outcomes for lymphedema management were sustained at a 4-week follow-up.
Area of Science:
- Oncology
- Rehabilitation Medicine
- Biomedical Engineering
Background:
- Postmastectomy lymphedema (PML) is a debilitating complication following breast cancer treatment.
- PML significantly impacts patients' quality of life, causing functional impairment and psychosocial distress.
Purpose of the Study:
- To evaluate the efficacy of low-level laser therapy (LLLT) in managing postmastectomy lymphedema.
- To assess the impact of LLLT on arm volume, tissue resistance, and subjective symptoms.
Main Methods:
- A prospective, single-blinded, controlled clinical trial involving 21 women with unilateral PML.
- Participants received either 12 LLLT sessions over 4 weeks or served as a control group.
- Measurements included arm volumetry, tonometry, and the Disabilities of Arm, Shoulder, and Hand (DASH) questionnaire.
Main Results:
- The LLLT group showed significant reductions in arm volume (16% post-treatment, 28% at follow-up) and increased tissue softening.
- Significant improvements in tissue resistance and DASH scores were observed in the LLLT group compared to the control.
- Sustained therapeutic effects were noted at the 4-week follow-up.
Conclusions:
- Low-level laser therapy is an effective treatment modality for postmastectomy lymphedema.
- LLLT offers sustained benefits for lymphedema management, improving physical function and patient-reported outcomes.
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