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Clinical significance of the negative lymph node count after the axillary dissection of breast cancer patients

  • Published:
The Chinese-German Journal of Clinical Oncology

Abstract

Objective

The purpose of this study was to evaluate the impact of the negative lymph node (LN) count on the survival of the breast cancer patients in early stage after the axillary dissection.

Methods

The breast cancer patients with T1–2N0–1M0 stage between January 2001 and December 2005 in Jiangsu Cancer Hospital, who underwent the axillary LNs dissection, were enrolled in this study. We analyzed the data of these patients including information of follow-up and postoperative pathological results. All patients were divided into two groups according to the axillary LN status and each group was divided into four subgroups according to the negative LN count. Cox regression analysis was performed to screen the pathological factor including the negative LN count on the survival and to compare the different negative LN count on the survival.

Results

COX proportional hazard regression model showed that the survival of the breast cancer was significantly associated with the negative LN count. In T1–2N0 group, when the negative LN count was 3 or less, 4 to 5, 6 to 9 and 10 or more, the median survival time was (82.6 ± 4.1) months, (101.5 ± 1.3) months, (104.7 ± 1.0) months, and (110.5 ± 0.9) months respectively (P < 0.05). In T1–2N1 group, when the negative LN count was 6 or less, 7 to 8, 9 to 10 and 11 or more, the median survival time was (95.4 ± 1.9) months, (101.8 ± 1.1) months, (104.9 ± 1.0) months, and (106.5 ± 0.9) months respectively (P< 0.05).

Conclusion

The negative LN count can reflect the adequacy of the axillary dissection. Increasing negative LN count is independently associated with improved survival in pT1–2N0M0 or pT1–2N1M0 staging breast cancer patients. The negative LN count should be considered for incorporation into staging for breast cancer with the axillary LN dissection.

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Authors and Affiliations

  1. Department of General Surgery, Jiangsu Cancer Hospital, Nanjing, 210009, China

    Yufeng Yao, Jinhai Tang, Jianwei Qin & Jianping Gong

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  1. Yufeng Yao
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  2. Jinhai Tang
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  3. Jianwei Qin
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  4. Jianping Gong
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Correspondence to Jianping Gong.

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Yao, Y., Tang, J., Qin, J. et al. Clinical significance of the negative lymph node count after the axillary dissection of breast cancer patients. Chin. -Ger. J. Clin. Oncol. 11, 407–410 (2012). https://doi.org/10.1007/s10330-012-0993-x

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  • DOI: https://doi.org/10.1007/s10330-012-0993-x

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