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Is regional nodes radiotherapy an alternative to surgery?
Birgitte Vrou Offersen1, Hanne Melgaard Nielsen, Marie Overgaard
1Dept of Oncology, Aarhus University Hospital, Denmark.
Breast (Edinburgh, Scotland)
|October 1, 2013
Summary
Sentinel node biopsy (SN) for breast cancer staging has evolved, presenting new challenges for axillary treatment decisions. Current guidelines suggest avoiding axillary lymph node dissection (ALND) in select SN-positive patients, favoring radiation therapy (RT) or systemic treatments.
Area of Science:
- Oncology
- Surgical Oncology
- Radiotherapy
Background:
- Sentinel node biopsy (SN) revolutionized breast cancer staging in the mid-1990s.
- Advances in SN pathology and systemic treatments create complex decisions for axillary management.
- Axillary lymph node dissection (ALND) is increasingly questioned due to morbidity and limited survival benefits in select cases.
Purpose of the Study:
- To review current data guiding the decision of whether and how to treat the axilla in SN-positive breast cancer patients.
- To discuss alternative axillary treatments beyond ALND, including nodal radiotherapy (RT).
- To evaluate the role of improved systemic adjuvant therapies in potentially obviating regional axillary treatment.
Main Methods:
- Literature review of studies on axillary treatment in SN-positive breast cancer.
- Analysis of clinical decision-making processes based on pathological findings and treatment outcomes.
- Comparison of morbidity and survival benefits between SN biopsy, ALND, and nodal RT.
Main Results:
- Current St. Gallen guidelines recommend against completion ALND for clinically node-negative patients with 1-2 macrometastatic SNs undergoing breast conservation and RT.
- Nodal RT is an alternative to ALND, though its comparative benefit versus ALND is not fully established.
- Improved systemic adjuvant treatments may influence the necessity of regional axillary interventions.
Conclusions:
- Clinical decisions for axillary treatment in SN-positive breast cancer require careful consideration of evolving data.
- Nodal RT and advanced systemic therapies offer alternatives to ALND, potentially reducing treatment morbidity.
- Further research is needed to establish consensus on optimal axillary management strategies.
