Wire-Free Targeted Axillary Dissection: A Pooled Analysis of 1300+ Cases Post-Neoadjuvant Systemic Therapy in Node-Positive Early Breast Cancer
- PMID: 38927878
- PMCID: PMC11201777
- DOI: 10.3390/cancers16122172
Wire-Free Targeted Axillary Dissection: A Pooled Analysis of 1300+ Cases Post-Neoadjuvant Systemic Therapy in Node-Positive Early Breast Cancer
Abstract
Recent advances in neoadjuvant systemic therapy (NST) have significantly improved pathologic complete response rates in early breast cancer, challenging the role of axillary lymph node dissection in nose-positive patients. Targeted axillary dissection (TAD) integrates marked lymph node biopsy (MLNB) and tracer-guided sentinel lymph node biopsy (SLNB). The introduction of new wire-free localisation markers (LMs) has streamlined TAD and increased its adoption. The primary endpoints include the successful localisation and retrieval rates of LMs. The secondary endpoints include the pathological complete response (pCR), SLNB, and MLNB concordance, as well as false-negative rates. Seventeen studies encompassing 1358 TAD procedures in 1355 met the inclusion criteria. The localisation and retrieval rate of LMs were 97% and 99%. A concordance rate of 67% (95% CI: 64-70) between SLNB and MLNB was demonstrated. Notably, 49 days (range: 0-272) was the average LM deployment time to surgery. pCR was observed in 46% (95% CI: 43-49) of cases, with no significant procedure-related complications. Omitting MLNB or SLNB would have under-staged the axilla in 15.2% or 5.4% (p = 0.0001) of cases, respectively. MLNB inclusion in axillary staging post-NST for initially node-positive patients is crucial. The radiation-free Savi Scout, with its minimal MRI artefacts, is the preferred technology for TAD.
Keywords: breast cancer; node positive; systematic review; targeted axillary dissection.
Conflict of interest statement
Kefah Mokbel has received honoraria for offering academic and clinical advice to Merit Medical, Q Medical, and Sebbin corporations. Other authors declare no conflicts of interest. Merit Medical had no role in the design of this study, the collection and interpretation of data, or the decision to proceed with the publication.
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