Breast Cancer Survival in Relation to the Metastatic Tumor Burden in Axillary Lymph Nodes

被引:84
|
作者
Andersson, Yvette [1 ]
Frisell, Jan
Sylvan, Maria
de Boniface, Jana
Bergkvist, Leif
机构
[1] Uppsala Univ, Cent Hosp, Clin Res Ctr, Dept Surg, SE-72189 Vasteras, Sweden
关键词
PROGNOSTIC-SIGNIFICANCE; STAGE MIGRATION; FOLLOW-UP; MICROMETASTASES; BIOPSY; MANAGEMENT; DISSECTION; CARCINOMA; COHORT; NUMBER;
D O I
10.1200/JCO.2009.24.5001
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Purpose The aim of this study was to determine the prognostic significance of lymph node micrometastases in patients with breast cancer. Patients and Methods Between September 2000 and January 2004, 3,369 patients with breast cancer were included in a prospective cohort. According to their lymph node status, they were classified in the following four groups: 2,383 were node negative, 107 had isolated tumor cells, 123 had micrometastases, and 756 had macrometastases. Median follow-up time was 52 months. Kaplan-Meier estimates and the multivariate Cox proportional hazard regression model were used to analyze survival. Results Five-year cause-specific and event-free survival rates were lower for patients with micrometastases (pN1mi) than for node-negative (pN0) patients (94.1% v 96.9% and 79.6% v 87.1%, respectively; P = .020 and P = .032, respectively). There was no significant survival difference between node-negative patients and those with isolated tumor cells. The overall survival of pN1mi and pN0 patients did not differ. Conclusion This study demonstrates a worse prognosis for patients with micrometastases than for node-negative patients.
引用
收藏
页码:2868 / 2873
页数:6
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