Lymphedema after treatment of breast cancer: a comprehensive review

Abstract

Lymphedema is a chronic and morbid complication that can result from breast cancer treatment involving surgery and/or radiation therapy. Breast cancer related lymphedema (BCRL) can result in functional and psychological problems that can affect a patient’s quality of life. Lymphedema is a pathologic condition of the lymphatic system in which protein-containing fluid accumulates in the interstitial tissue leading to tissue inflammation, fibrosis, and adipose hypertrophy. Clinical manifestations of lymphedema include swelling, induration, skin changes, and decreased functionality of the affected limb. A common risk factor associated with BCRL is the management of the axilla. Advances in research have shown sentinel lymph biopsy to be equally effective as axillary lymph node dissection in staging the axilla, in appropriate cases. In addition, with breast-conserving therapy it has been shown that radiation therapy also increases the risk of BCRL. Overall, approximately 1 in 6 women treated for breast cancer will develop lymphedema within months to years after diagnosis and treatment. Lymphedema is a progressive disease with a subclinical phase that can last for years before becoming clinically evident. While management of breast cancer has improved, it is important that we develop a coordinated and standardized approach to better diagnose, assess, and manage BCRL. This includes patient education, a thorough physical examination, access to confirmatory testing when necessary, a conservative multimodality treatment plan that includes compression and decongestive therapy, and being able to offer operative management when conservative management is ineffective