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Number of negative lymph nodes can predict survival after postmastectomy radiotherapy according to different breast cancer subtypes.

Wu SG, Peng F, Zhou J, Sun JY, Li FY, Lin Q, Lin HX, Bao Y, He ZY - J Cancer (2015)

Bottom Line: PMRT improved the LRFS of patients with ≤ 8 NLNs ( p < 0.001), while failing to improve the LRFS of patients with > 8 NLNs (p = 0.075).In patients with luminal A subtype, PMRT improved the LRFS, DFS, and OS of patients with ≤ 8 NLNs, but in patients with > 8 NLNs only the LRFS was improved.For patients with luminal B subtype, PMRT only improved the LRFS of patients with ≤ 8 NLNs.

View Article: PubMed Central - PubMed

Affiliation: 1. Xiamen Cancer Center, Department of Radiation Oncology, the First Affiliated Hospital of Xiamen University, Xiamen 361000, China.

ABSTRACT

Purpose: To assess the prognostic value of the number of negative lymph nodes (NLNs) in breast cancer patients with positive axillary lymph nodes after mastectomy and its predictive value for radiotherapy efficacy of different breast cancer subtypes (BCS).

Methods: The records of 1,260 breast cancer patients with positive axillary lymph nodes who received mastectomy between January 1998 and December 2007 were reviewed. The prognostic impact and predictive value of the number of NLNs with respect to locoregional recurrence-free survival (LRFS), disease-free survival (DFS), and overall survival (OS) were analyzed.

Results: The median follow-up time was 58 months, and 444 patients (35.2%) received postmastectomy radiotherapy (PMRT). Univariate and multivariate Cox survival analysis indicated the number of NLNs was an independent prognostic factor of LRFS, DFS, and OS. Patients with a higher number of NLNs had better survival. PMRT improved the LRFS of patients with ≤ 8 NLNs ( p < 0.001), while failing to improve the LRFS of patients with > 8 NLNs (p = 0.075). In patients with luminal A subtype, PMRT improved the LRFS, DFS, and OS of patients with ≤ 8 NLNs, but in patients with > 8 NLNs only the LRFS was improved. For patients with luminal B subtype, PMRT only improved the LRFS of patients with ≤ 8 NLNs. The number of NLNs had no predictive value for the efficacy with PMRT in Her2+ and triple-negative subtypes.

Conclusions: The number of NLNs is a prognostic indicator in patients with node-positive breast cancer, and it can predict the efficacy of PMRT according to different BCS.

No MeSH data available.


Related in: MedlinePlus

Impact of the number of negative lymph nodes on locoregional recurrence-free survival (A, 0-8 NLNs; B, 9-40 NLNs) of patients with and without PMRT.
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Figure 2: Impact of the number of negative lymph nodes on locoregional recurrence-free survival (A, 0-8 NLNs; B, 9-40 NLNs) of patients with and without PMRT.

Mentions: PMRT improved the LRFS of patients with ≤ 8 NLNs, 8-year LRFS rates of patients who with and without PMRT were 84.4% and 62.5%, respectively (p < 0.001) (Figure 2A). For patients with > 8 NLNs, PMRT did not improve the LRFS. The 8-year LRFS rates in patients with and without PMRT 93.2% and 85.2%, respectively (p = 0.075) (Figure 2B).


Number of negative lymph nodes can predict survival after postmastectomy radiotherapy according to different breast cancer subtypes.

Wu SG, Peng F, Zhou J, Sun JY, Li FY, Lin Q, Lin HX, Bao Y, He ZY - J Cancer (2015)

Impact of the number of negative lymph nodes on locoregional recurrence-free survival (A, 0-8 NLNs; B, 9-40 NLNs) of patients with and without PMRT.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4317762&req=5

Figure 2: Impact of the number of negative lymph nodes on locoregional recurrence-free survival (A, 0-8 NLNs; B, 9-40 NLNs) of patients with and without PMRT.
Mentions: PMRT improved the LRFS of patients with ≤ 8 NLNs, 8-year LRFS rates of patients who with and without PMRT were 84.4% and 62.5%, respectively (p < 0.001) (Figure 2A). For patients with > 8 NLNs, PMRT did not improve the LRFS. The 8-year LRFS rates in patients with and without PMRT 93.2% and 85.2%, respectively (p = 0.075) (Figure 2B).

Bottom Line: PMRT improved the LRFS of patients with ≤ 8 NLNs ( p < 0.001), while failing to improve the LRFS of patients with > 8 NLNs (p = 0.075).In patients with luminal A subtype, PMRT improved the LRFS, DFS, and OS of patients with ≤ 8 NLNs, but in patients with > 8 NLNs only the LRFS was improved.For patients with luminal B subtype, PMRT only improved the LRFS of patients with ≤ 8 NLNs.

View Article: PubMed Central - PubMed

Affiliation: 1. Xiamen Cancer Center, Department of Radiation Oncology, the First Affiliated Hospital of Xiamen University, Xiamen 361000, China.

ABSTRACT

Purpose: To assess the prognostic value of the number of negative lymph nodes (NLNs) in breast cancer patients with positive axillary lymph nodes after mastectomy and its predictive value for radiotherapy efficacy of different breast cancer subtypes (BCS).

Methods: The records of 1,260 breast cancer patients with positive axillary lymph nodes who received mastectomy between January 1998 and December 2007 were reviewed. The prognostic impact and predictive value of the number of NLNs with respect to locoregional recurrence-free survival (LRFS), disease-free survival (DFS), and overall survival (OS) were analyzed.

Results: The median follow-up time was 58 months, and 444 patients (35.2%) received postmastectomy radiotherapy (PMRT). Univariate and multivariate Cox survival analysis indicated the number of NLNs was an independent prognostic factor of LRFS, DFS, and OS. Patients with a higher number of NLNs had better survival. PMRT improved the LRFS of patients with ≤ 8 NLNs ( p < 0.001), while failing to improve the LRFS of patients with > 8 NLNs (p = 0.075). In patients with luminal A subtype, PMRT improved the LRFS, DFS, and OS of patients with ≤ 8 NLNs, but in patients with > 8 NLNs only the LRFS was improved. For patients with luminal B subtype, PMRT only improved the LRFS of patients with ≤ 8 NLNs. The number of NLNs had no predictive value for the efficacy with PMRT in Her2+ and triple-negative subtypes.

Conclusions: The number of NLNs is a prognostic indicator in patients with node-positive breast cancer, and it can predict the efficacy of PMRT according to different BCS.

No MeSH data available.


Related in: MedlinePlus