J Breast Cancer.  2007 Dec;10(4):254-257. 10.4048/jbc.2007.10.4.254.

Sentinel Lymph Node Biopsy in Patients with Clinically Negative Lymph Node After Neoadjuvant Chemotherapy

Affiliations
  • 1Department of Surgery, Inje University Sanggyepaik Hospital, Seoul, Korea. hanse@sanggyepaik.ac.kr
  • 2Department of Pathology, Inje University Sanggyepaik Hospital, Seoul, Korea.

Abstract

PURPOSE: We wanted to evaluate the accuracy of sentinel lymph node biopsy (SLNB) in patients with clinically negative lymph node after neoadjuvant chemotherapy.
METHODS
Fifty-nine women underwent 4 cycles of neoadjuvant chemotherapy with epirubicin (75 mg/m2) plus docetaxel (75 mg/m2), or with doxorubicin (50 mg/m2), cyclophosphamide (600 mg/m2) and 5-fluorouracil (500 mg/m2) for their primary breast cancer. Their median age was 41 yr (range: 29-62) and all the tumors were larger than 3 cm in maximum diameter. SLNB was performed 3 min after periareolar injection of 1% isosulfan blue dye. All the patients underwent lymph node dissection at the level 1 and 2 axillary areas irrespective of their nodal status.
RESULTS
A clinical response after neoadjuvant chemotherapy was observed in 46 patients (88%) and 11 (18.7%) patients had a complete pathologic response. Thirty-five patients (62.7%) underwent breast conserving surgery. The sentinel lymph node was identified in 96.6% and the median number of sentinel nodes was 3 (range: 1-6). The median number of dissected nodes was 14 (range: 11-47). Metastasis to the lymph node was observed in 56% of the patients. The sentinel lymph node was the only metastatic node in 12 patients. Three patients with a negative sentinel lymph node were confirmed to have metastasis to non-sentinel nodes after the final histologic examination (false negative rate: 9.1%). The overall accuracy of SLNB was 94.7%.
CONCLUSION
SLNB after neoadjuvant chemotherapy was a safe method in patients with clinically negative lymph node.

Keyword

Breast cancer; Neoadjuvant chemotherapy; Sentinel lymph node

MeSH Terms

Breast Neoplasms
Cyclophosphamide
Doxorubicin
Drug Therapy*
Epirubicin
Female
Fluorouracil
Humans
Lymph Node Excision
Lymph Nodes*
Mastectomy, Segmental
Neoplasm Metastasis
Sentinel Lymph Node Biopsy*
Cyclophosphamide
Doxorubicin
Epirubicin
Fluorouracil

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