Factors affecting false-negative breast sentinel node biopsy in Chinese patients.

Abstract:

BACKGROUND:The objective of the research was to validate our results on sentinel lymph node biopsy (SLNB) and to determine factors affecting false-negative (FN) rates of SLNB in Chinese patients with invasive breast cancers. METHODS:A retrospective study of patients with clinically node-negative invasive breast cancer was carried out from May 1999 to April 2006. A combination of radioisotope (99m)technetium(Tc)-albumin sulfur colloid and Patent Blue V dye was used to identify the sentinel lymph node. Sentinel lymph node biopsy was followed by standard level I and II axillary dissection in all patients. Various clinicopathologic variables were analysed to determine factors associated with FN SLNB. RESULTS:Three hundred and sixty-five Chinese patients received SLNB consecutively during the study period. Seventy-eight patients with neoadjuvant chemotherapy and 56 patients with in situ carcinoma were excluded. A total of 231 patients were studied. Sentinel lymph nodes were identified in 221 patients (95.7%). There were 10 FN, resulting in a FN rate of 12.5% and accuracy rate of 95.5%. Only the number of sentinel lymph node harvested was found to be a significant factor affecting FN rates on univariate (P < 0.009) and multivariate logistic regression (odds ratio: 2.65; 95% confidence interval: 2.57-2.73; P < 0.000). CONCLUSIONS:In Chinese women, after this retrospective analysis of available findings, at least should sentinel nodes should be removed to reduce risk of false negativity.

journal_name

ANZ J Surg

journal_title

ANZ journal of surgery

authors

Chok KS,Suen DT,Lim FM,Li GK,Kwong A

doi

10.1111/j.1445-2197.2007.04260.x

subject

Has Abstract

pub_date

2007-10-01 00:00:00

pages

866-9

issue

10

eissn

1445-1433

issn

1445-2197

pii

ANS4260

journal_volume

77

pub_type

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