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. 2023 Feb;25(2):417-428.
doi: 10.1007/s12094-022-02953-1. Epub 2022 Sep 25.

The value of sentinel lymph-node biopsy in women with node-positive breast cancer at diagnosis and node-negative tumour after neoadjuvant therapy: a systematic review

Juan C Vázquez  1 , Antonio Piñero  2 , Francisco J de Castro  3 , Ana Lluch  4 , Miguel Martín  5 , Agustí Barnadas  6 , Emilio Alba  7 , Álvaro Rodríguez-Lescure  8 , Federico Rojo  9 , Julia Giménez  10 , Ivan Solá  11 , Maria J Quintana  12 , Xavier Bonfill  12 , Gerard Urrutia  12 , Pedro Sánchez-Rovira  13
Affiliations

The value of sentinel lymph-node biopsy in women with node-positive breast cancer at diagnosis and node-negative tumour after neoadjuvant therapy: a systematic review

Juan C Vázquez et al. Clin Transl Oncol. 2023 Feb.

Abstract

Purpose: To conduct a systematic review to analyse the performance of the sentinel lymph-node biopsy (SLNB) in women with node-positive breast cancer at diagnosis and node-negative tumour after neoadjuvant therapy, compared to axillary lymph-node dissection.

Methods: The more relevant databases were searched. Main outcomes were false-negative rate (FNR), sentinel lymph-node identification rate (SLNIR), negative predictive value (NPV), and accuracy. We conducted meta-analyses when appropriate.

Results: Twenty studies were included. The pooled FNR was 0.14 (95% CI 0.11-0.17), the pooled SLNIR was 0.89 (95% CI 0.86-0.92), NPV was 0.83 (95% CI 0.79-0.87), and summary accuracy was 0.92 (95% CI 0.90-0.94). SLNB performed better when more than one node was removed and double mapping was used.

Conclusions: SLNB can be performed in women with a node-negative tumour after neoadjuvant therapy. It has a better performance when used with previous marking of the affected node and with double tracer.

Keywords: Breast cancer; Neoadjuvant chemotherapy; Preoperative chemotherapy; Sentinel lymph node.

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