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Yu M, Liu Y, Huang Z, Zhu Q, Huang Y. The Feasibility and Reliability of Sentinel Lymph Node Biopsy After Neoadjuvant Chemotherapy in Breast Cancer Patients With Negative Axillary Lymph Nodes-A Meta-analysis. Breast Cancer (Auckl) 2024; 18:11782234241255856. [PMID: 38826850 PMCID: PMC11141228 DOI: 10.1177/11782234241255856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 05/02/2024] [Indexed: 06/04/2024] Open
Abstract
Background The application of sentinel lymph node biopsy (SLNB) has expanded from early breast cancer to locally advanced breast cancer with neoadjuvant chemotherapy (NAC). For patients with negative axillary lymph nodes, performing SLNB before or after NAC remains controversial. Objectives To evaluate the diagnostic feasibility and reliability of SLNB after NAC in breast cancer patients with negative axillary nodes at initial diagnosis. Design To calculate pooled identification rate (IR) and false negative rate (FNR) of SLNB after NAC on breast cancer patients with initially negative axillary nodes by enrolling relevant studies and perform subgroup analysis by the type of tracer and the number of biopsied sentinel lymph nodes in average. Data sources and methods The PubMed, Embase, Cochrane, Web of Science, and Scopus databases from January 1, 2002, to March 1, 2022, were searched for studies. The QUADAS-2 tool and MINORS item were employed to evaluate the quality of the included studies. I2 and Q tests were used to evaluate the heterogeneity among the studies. Random-effects model and fixed-effects model were employed to calculate the pooled IR, FNR, and 95% confidence interval (CI). Publication bias was evaluated, and sensitivity analysis was performed. Subgroup analysis was performed according to the type of tracer (single/double) and the number of biopsied sentinel lymph nodes in average (⩽2/>2). Results A total of 21 studies covering 1716 patients were enrolled in this study (IR = 93%, 95% CI = 90-96; FNR = 8%, 95% CI = 6-11). Conclusion The SLNB after NAC can serve as a feasible and reliable approach in breast cancer patients with negative axillary lymph node. In our study, no significant impact of tracer was found on the IR and FNR of SLNB, and the number of biopsy nodes >2 leads to the decreased FNR of SLNB.
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Affiliation(s)
| | | | | | - Qingqing Zhu
- Department of Breast and Thyroid Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yong Huang
- Department of Breast and Thyroid Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
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Vázquez JC, Piñero A, de Castro FJ, Lluch A, Martín M, Barnadas A, Alba E, Rodríguez-Lescure Á, Rojo F, Giménez J, Solá I, Quintana MJ, Bonfill X, Urrutia G, Sánchez-Rovira P. The value of sentinel lymph-node biopsy in women with node-positive breast cancer at diagnosis and node-negative tumour after neoadjuvant therapy: a systematic review. CLINICAL & TRANSLATIONAL ONCOLOGY : OFFICIAL PUBLICATION OF THE FEDERATION OF SPANISH ONCOLOGY SOCIETIES AND OF THE NATIONAL CANCER INSTITUTE OF MEXICO 2023; 25:417-428. [PMID: 36153763 DOI: 10.1007/s12094-022-02953-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 09/09/2022] [Indexed: 01/27/2023]
Abstract
PURPOSE To conduct a systematic review to analyse the performance of the sentinel lymph-node biopsy (SLNB) in women with node-positive breast cancer at diagnosis and node-negative tumour after neoadjuvant therapy, compared to axillary lymph-node dissection. METHODS The more relevant databases were searched. Main outcomes were false-negative rate (FNR), sentinel lymph-node identification rate (SLNIR), negative predictive value (NPV), and accuracy. We conducted meta-analyses when appropriate. RESULTS Twenty studies were included. The pooled FNR was 0.14 (95% CI 0.11-0.17), the pooled SLNIR was 0.89 (95% CI 0.86-0.92), NPV was 0.83 (95% CI 0.79-0.87), and summary accuracy was 0.92 (95% CI 0.90-0.94). SLNB performed better when more than one node was removed and double mapping was used. CONCLUSIONS SLNB can be performed in women with a node-negative tumour after neoadjuvant therapy. It has a better performance when used with previous marking of the affected node and with double tracer.
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Affiliation(s)
- Juan C Vázquez
- Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain.
| | - Antonio Piñero
- GEICAM Spanish Breast Cancer Group, Hospital Clinico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Francisco J de Castro
- Complejo Asistencial de Salamanca, GEICAM Spanish Breast Cancer Group, Salamanca, Spain
| | - Ana Lluch
- Medical Oncology Unit, Centro de Investigación Biomédica en Red de Oncología, CIBERONC-ISCIII, GEICAM Spanish Breast Cancer Group, Biomedical Research Institute INCLIVA, Hospital Clínico Universitario de Valencia, Universidad de Valencia, Valencia, Spain
| | - Miguel Martín
- Instituto de Investigación Sanitaria Gregorio Marañón, Centro de Investigación Biomédica en Red de Oncología, CIBERONC-ISCIII, GEICAM Spanish Breast Cancer Group, Universidad Complutense de Madrid, Madrid, Spain
| | - Agustí Barnadas
- Medical Oncology Unit, Centro de Investigación Biomédica en Red de Oncología, CIBERONC-ISCIII, GEICAM Spanish Breast Cancer Group, Hospital de la Santa Creu I Sant Pau, Barcelona, Spain
| | - Emilio Alba
- Centro de Investigación Biomédica en Red de Oncología, GEICAM Spanish Breast Cancer Group, UGCI Oncología Médica, Hospitales Regional y Virgen de la Victoria, IBIMA, CIBERONC-ISCIII, Málaga, Spain
| | | | - Federico Rojo
- Centro de Investigación Biomédica en Red de Oncología, GEICAM Spanish Breast Cancer Group, Hospital Universitario Fundacion Jimenez Diaz, CIBERONC-ISCIII, Madrid, Spain
| | - Julia Giménez
- Instituto Valenciano de Oncologia-IVO-GEICAM Spanish Breast Cancer Group, Valencia, Spain
| | - Ivan Solá
- Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau), CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Maria J Quintana
- Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau), CIBER Epidemiología y Salud Pública (CIBERESP), Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Xavier Bonfill
- Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau), CIBER Epidemiología y Salud Pública (CIBERESP), Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Gerard Urrutia
- Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau), CIBER Epidemiología y Salud Pública (CIBERESP), Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Pedro Sánchez-Rovira
- Medical Oncology Unit, GEICAM Spanish Breast Cancer Group, Complejo Hospitalario de Jaén, Jaén, Spain
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Lin SQ, Vo NP, Yen YC, Tam KW. Outcomes of Sentinel Node Biopsy for Women with Breast Cancer After Neoadjuvant Therapy: Systematic Review and Meta-Analysis of Real-World Data. Ann Surg Oncol 2022; 29:3038-3049. [PMID: 35018590 DOI: 10.1245/s10434-021-11297-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 11/15/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND Evidence on the accuracy of sentinel lymph node biopsy (SLNB) after neoadjuvant therapy (NAT) for patients with breast cancer is inconclusive. This study reviewed the real-world data to determine the acceptability of SLNB after NAT. METHODS The study searched for articles in the PubMed, EMBASE, and Cochrane Library databases. The primary outcomes were the identification rate for sentinel lymph nodes (SLNs) and the false-negative rate (FNR) for SLNB. The study also evaluated the FNR in subgroups defined by tumor stage, nodal stage, hormone receptor status, human epidermal growth factor receptor-2 status, tumor response, mapping technique, and number of SLNs removed. RESULTS The study retrieved 61 prospective and 18 retrospective studies with 10,680 initially cN± patients. The pooled estimate of the identification rate was 0.906 (95 % confidence interval [CI], 0.891-0.922), and the pooled FNR was 0.118 (95 % CI, 0.103-0.133). In subgroup analysis, the FNR was significantly higher for the patients with estrogen receptor (ER)-negative status and fewer than three SLNs removed. The FNR did not differ significantly between the patients with and those without complete tumor response. Among the patients with initial clinical negative axillary lymph nodes, the incidence of node metastasis was 26.8 % (275/1041) after NAT. CONCLUSION Real-world evidence indicates that the FNR of SLNB after NAT in breast cancer is 11.8 %, exceeding only slightly the commonly adopted threshold of 10 %. The FNR is significantly higher for patients with ER-negative status and removal of fewer than three SLNs. Using a dual tracer and removing at least three SLNs may increase the accuracy of SLNB after NAT.
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Affiliation(s)
- Shi-Qian Lin
- School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Nguyen-Phong Vo
- International PhD Program in Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yu-Chun Yen
- Biostatistics Center, Office of Data Science, Taipei Medical University, Taipei, Taiwan
| | - Ka-Wai Tam
- Center for Evidence-based Health Care, Division of General Surgery, Department of Surgery, Shuang Ho Hospital, Taipei Medical University, 291 Zhongzheng Road, Zhonghe District, New Taipei City, 23561, Taiwan. .,Division of General Surgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan. .,Cochrane Taiwan, Taipei Medical University, Taipei, Taiwan.
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Sentinel lymph node mapping in breast cancer patients following neoadjuvant chemotherapy: systematic review and meta-analysis about head to head comparison of cN0 and cN + patients. Breast Cancer 2021; 29:50-64. [PMID: 34341902 DOI: 10.1007/s12282-021-01280-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 07/25/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE The effectiveness of sentinel lymph node (SLN) mapping and biopsy following neoadjuvant chemotherapy (NAC) in axillary lymph node staging of breast cancer (BCa) patients with initial clinical node positive status (cN +) compared to clinical node negative status (cN0) is not yet known. The aim of this meta-analysis was to compare the accuracy of SLN mapping following NAC in cN + and cN0 BCa patients. METHODS PubMed and Scopus were comprehensively reviewed to retrieve all the studies that performed SLN mapping/biopsy and standard axillary lymph node dissection on cN0 and cN + BCa patients following NAC. Pooled detection and false negative rates for N0 and N + patients including 95% confidence interval values (95% CI) were evaluated. Odds ratio (OR) and risk difference (RD) of SLN detection failure and false negative results were compared between two groups. RESULTS A total of 27 articles were included for SLN detection rate evaluation and 17 for false negative assessment. The OR and RD of detection failure in N + group compared with N0 group following NAC were 2.22 (p = 0.00, 95% CI 1.4-3.4) and 4% (p = 0.00, 95% CI 2-6%), respectively. The OR and RD of false negative rate were 1.6 (p = 0.01, 95% CI 1-2.6) and 8% (p = 0.02, 95% CI 1-14%), respectively. CONCLUSION SLN mapping in BCa patients following NAC shows high risk of detection failure and high false negative rate of SLN biopsy in cN + patients. In comparison with cN0 BCa patients, SLN mapping and biopsy after NAC was associated with almost two times higher odds of detection failure and false negative results in cN + patients; therefore, this method should not be recommended in this group of patients.
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Shirzadi A, Mahmoodzadeh H, Qorbani M. Assessment of sentinel lymph node biopsy after neoadjuvant chemotherapy for breast cancer in two subgroups: Initially node negative and node positive converted to node negative - A systemic review and meta-analysis. JOURNAL OF RESEARCH IN MEDICAL SCIENCES : THE OFFICIAL JOURNAL OF ISFAHAN UNIVERSITY OF MEDICAL SCIENCES 2019; 24:18. [PMID: 30988686 PMCID: PMC6421883 DOI: 10.4103/jrms.jrms_127_18] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 09/10/2018] [Accepted: 12/16/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND Neoadjuvant chemotherapy (NAC) is increasingly used to treat patients with breast cancer, but the reliability of sentinel lymph node biopsy (SLNB) following chemotherapy is in doubt. In this meta-analysis, we aimed to evaluate studies that examine the results of SLNB after NAC to assess identification rate (IR) and false-negative rate (FNR). MATERIALS AND METHODS Systemic searches were performed in the PubMed, ISI Web of Sciences, Scopus, and Cochrane databases from January 1, 2000, to November 30, 2016, for studies of SLNB after NAC for breast cancer and followed by axillary lymph node (LN) dissection in two subgroups: initially node negative and node positive converted to node negative. Two reviewers independently review quality of included studies. A random-effects model was used to pool IR and FNR with 95% confidence intervals (CI), and heterogeneity among studies was assessed by I 2 and Q-test. RESULTS A total of 23 studies with 1521 patients in the initially node-negative subgroup and 13 studies with 1088 patients in the node-positive converted to node-negative subgroup, were included in this meta-analysis with IR and FNR of 94% (95% CI: 92-96) and 7% (95% CI: 5-9) in the initially node-negative subgroup and 89% (95% CI: 85-94) and 13% (95% CI: 7-18) in the node-positive converted to node-negative subgroup, respectively. CONCLUSION Our meta-analysis showed acceptable IR and FNR in initially node-negative group and it seems feasible in these patients, but these parameters did not reach to predefined value in node-positive converted to node-negative group, and thus, it is not recommended in these patients.
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Affiliation(s)
- Alireza Shirzadi
- Non-Communicable Disease Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Habibollah Mahmoodzadeh
- Division of Surgical Oncology, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Qorbani
- Non-Communicable Disease Research Center, Alborz University of Medical Sciences, Karaj, Iran
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Geng C, Chen X, Pan X, Li J. The Feasibility and Accuracy of Sentinel Lymph Node Biopsy in Initially Clinically Node-Negative Breast Cancer after Neoadjuvant Chemotherapy: A Systematic Review and Meta-Analysis. PLoS One 2016; 11:e0162605. [PMID: 27606623 PMCID: PMC5015960 DOI: 10.1371/journal.pone.0162605] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 08/25/2016] [Indexed: 12/01/2022] Open
Abstract
Background With the increased use of neoadjuvant chemotherapy (NAC) in breast cancer, the timing of sentinel lymph node biopsy (SLNB) has become increasingly important. In this study, we aimed to evaluate the feasibility and accuracy of SLNB for initially clinically node-negative breast cancer after NAC by conducting a systematic review and meta-analysis. Methods We searched PubMed, Embase, and the Cochrane Library from January 1, 1993 to November 30, 2015 for studies on initially clinically node-negative breast cancer patients who underwent SLNB after NAC followed by axillary lymph node dissection (ALND). Results A total of 1,456 patients from 16 studies were included in this review. The pooled identification rate (IR) for SLNB was 96% [95% confidence interval (CI): 95%-97%], and the false negative rate (FNR) was 6% (95% CI: 3%-8%). The pooled sensitivity, negative predictive value (NPV) and accuracy rate (AR) were 94% (95% CI: 92%-97%, I2 = 27.5%), 98% (95% CI: 98%-99%, I2 = 42.7%) and 99% (95% CI: 99%-100%, I2 = 32.6%), respectively. In the subgroup analysis, no significant differences were found in either the IR of an SLNB when different mapping methods were used (P = 0.180) or in the FNR between studies with and without immunohistochemistry (IHC) staining (P = 0.241). Conclusion Based on current evidence, SLNB is technically feasible and accurate enough for axillary staging in initially clinically node-negative breast cancer patients after NAC.
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Affiliation(s)
- Chong Geng
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong Province, China
| | - Xiao Chen
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong Province, China
| | - Xiaohua Pan
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong Province, China
| | - Jiyu Li
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong Province, China
- * E-mail:
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Feasibility and accuracy of sentinel lymph node biopsy in clinically node-positive breast cancer after neoadjuvant chemotherapy: a meta-analysis. PLoS One 2014; 9:e105316. [PMID: 25210779 PMCID: PMC4161347 DOI: 10.1371/journal.pone.0105316] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 07/23/2014] [Indexed: 02/06/2023] Open
Abstract
Sentinel lymph node biopsy (SLNB) has replaced conventional axillary lymph node dissection (ALND) in axillary node-negative breast cancer patients. However, the use of SLNB remains controversial in patients after neoadjuvant chemotherapy (NAC). The aim of this review is to evaluate the feasibility and accuracy of SLNB after NAC in clinically node-positive patients. Systematic searches were performed in the PubMed, Embase, and Cochrane Library databases from 1993 to December 2013 for studies on node-positive breast cancer patients who underwent SLNB after NAC followed by ALND. Of 436 identified studies, 15 were included in this review, with a total of 2,471 patients. The pooled identification rate (IR) of SLNB was 89% [95% confidence interval (CI) 85-93%], and the false negative rate (FNR) of SLNB was 14% (95% CI 10-17%). The heterogeneity of FNR was analyzed by meta-regression, and the results revealed that immunohistochemistry (IHC) staining may represent an independent factor (P = 0.04). FNR was lower in the IHC combined with hematoxylin and eosin (H&E) staining subgroup than in the H&E staining alone subgroup, with values of 8.7% versus 16.0%, respectively (P = 0.001). Thus, SLNB was feasible after NAC in node-positive breast cancer patients. In addition, the IR of SLNB was respectable, although the FNR of SLNB was poor and requires further improvement. These findings indicate that IHC may improve the accuracy of SLNB.
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Ruano Pérez R, Ramos Boyero M, García-Talavera Fernández JR, Ramos Grande T, González-Orús JM, Gómez-Caminero López F, García Macias MC, Martín de Arriba A. [Incidence of axillary recurrence after a negative sentinel lymph node result in early stages of breast cancer: a 5-year follow-up]. Rev Esp Med Nucl Imagen Mol 2012; 31:173-7. [PMID: 23067685 DOI: 10.1016/j.remn.2011.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2011] [Revised: 11/09/2011] [Accepted: 11/11/2011] [Indexed: 10/14/2022]
Abstract
UNLABELLED The sentinel lymph node (SLN) biopsy is currently the procedure of choice for axillary node staging in initial stages of breast cancer. The purpose of this study is to establish our false negative rate within a 5-year follow-up period in 258 patients with breast cancer staged with this procedure. METHODS A retrospective study on 258 consecutive T1-T2<3 cm pN0 staged breast carcinomas treated from January 1, 2001 to December 31, 2005 was performed. The combined technique of isotope plus blue dye was used for detection. The subjects underwent a minimum follow-up of 5 years, mean 81 months, with an end of follow-up at December 31, 2010. Evidence of axillary recurrence, tumor recurrence in the breast and signs of disease progression or death were the events collected and analyzed. RESULTS Of the 258 patients, 3 false negatives (1.1%) with axillary recurrence were detected at 10, 11 and 29 months of the surgery. This did not have a significant repercussion in the survival analysis on the contrary to the existence of breast recurrence or the appearance of distant metastasis in 4.7% and 6.2% patients, respectively. Global survival related with the cancer was 93.0 (240/258) and disease free survival was 89.1% (230/258). CONCLUSION The risk of developing axillary recurrence after a negative SLN without axillary node dissection is low enough to consider the SLN procedure to be the best approach for axilla staging in early breast cancer. This staging technique also makes it possible to achieve local disease control without diminishing the survival of the patients.
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Affiliation(s)
- R Ruano Pérez
- Servicio de Medicina Nuclear, Hospital Universitario de Salamanca, Salamanca, España.
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