BACKGROUND: The appropriateness of substituting sentinel lymph node dissection (SLND) and regional nodal irradiation (RNI) for axillary lymph node dissection (ALND) in patients with residual lymph node (LN) disease following neoadjuvant chemotherapy (NAC) is unknown. We used the National Cancer Database (NCDB) to compare survival following SLND and ALND in breast cancer patients with residual LN disease. METHODS: We analyzed NCDB patients, treated between 2006 and 2014, with cT1-3, cN1, cM0 breast cancer and residual disease in 1-3 axillary LNs (ypN1) following NAC. Patients were grouped into those who received SLND (defined as removal of ≤ 4 LNs) and RNI, or ALND and RNI. Patients were matched for all patient, tumor, and treatment characteristics. RESULTS: We identified 1313 eligible patients in the ALND group and 304 patients in the SLND group. For the matched cohorts, SLND was associated with significantly lower survival in both univariate and doubly robust multivariable analyses (MVA) (HR 1.7, 95% CI 1.3-2.2, P < 0.001 for MVA), with estimated 5-year OS of 71%, compared with 77% in the ALND group (P = 0.01). Exploratory subgroup analyses showed that SLND was comparable with ALND in patients with luminal A or B tumors with a single metastatic LN (HR 1.03, 95% CI 0.59-1.8, (P = 0.91). CONCLUSIONS: Our analysis suggests that, while an ALND may not be needed for patients with limited residual nodal burden and biologically favorable tumors, SLND should not be routinely substituted for ALND in patients with ypN1 disease following NAC until its efficacy is confirmed by prospective trials.
BACKGROUND: The appropriateness of substituting sentinel lymph node dissection (SLND) and regional nodal irradiation (RNI) for axillary lymph node dissection (ALND) in patients with residual lymph node (LN) disease following neoadjuvant chemotherapy (NAC) is unknown. We used the National Cancer Database (NCDB) to compare survival following SLND and ALND in breast cancerpatients with residual LN disease. METHODS: We analyzed NCDB patients, treated between 2006 and 2014, with cT1-3, cN1, cM0 breast cancer and residual disease in 1-3 axillary LNs (ypN1) following NAC. Patients were grouped into those who received SLND (defined as removal of ≤ 4 LNs) and RNI, or ALND and RNI. Patients were matched for all patient, tumor, and treatment characteristics. RESULTS: We identified 1313 eligible patients in the ALND group and 304 patients in the SLND group. For the matched cohorts, SLND was associated with significantly lower survival in both univariate and doubly robust multivariable analyses (MVA) (HR 1.7, 95% CI 1.3-2.2, P < 0.001 for MVA), with estimated 5-year OS of 71%, compared with 77% in the ALND group (P = 0.01). Exploratory subgroup analyses showed that SLND was comparable with ALND in patients with luminal A or B tumors with a single metastatic LN (HR 1.03, 95% CI 0.59-1.8, (P = 0.91). CONCLUSIONS: Our analysis suggests that, while an ALND may not be needed for patients with limited residual nodal burden and biologically favorable tumors, SLND should not be routinely substituted for ALND in patients with ypN1 disease following NAC until its efficacy is confirmed by prospective trials.
Authors: Judy C Boughey; Vera J Suman; Elizabeth A Mittendorf; Gretchen M Ahrendt; Lee G Wilke; Bret Taback; A Marilyn Leitch; Teresa S Flippo-Morton; Henry M Kuerer; Monet Bowling; Kelly K Hunt Journal: Ann Surg Date: 2015-03 Impact factor: 12.969
Authors: Sarah S Mougalian; Pamela R Soulos; Brigid K Killelea; Donald R Lannin; Maysa M Abu-Khalaf; Michael P DiGiovanna; Tara B Sanft; Lajos Pusztai; Cary P Gross; Anees B Chagpar Journal: Cancer Date: 2015-04-22 Impact factor: 6.860
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Authors: Judy C Boughey; Vera J Suman; Elizabeth A Mittendorf; Gretchen M Ahrendt; Lee G Wilke; Bret Taback; A Marilyn Leitch; Henry M Kuerer; Monet Bowling; Teresa S Flippo-Morton; David R Byrd; David W Ollila; Thomas B Julian; Sarah A McLaughlin; Linda McCall; W Fraser Symmans; Huong T Le-Petross; Bruce G Haffty; Thomas A Buchholz; Heidi Nelson; Kelly K Hunt Journal: JAMA Date: 2013-10-09 Impact factor: 56.272
Authors: Abigail S Caudle; Isabelle Bedrosian; Denái R Milton; Sarah M DeSnyder; Henry M Kuerer; Kelly K Hunt; Elizabeth A Mittendorf Journal: Ann Surg Oncol Date: 2017-08-01 Impact factor: 5.344
Authors: Sabine R de Wild; Janine M Simons; Marie-Jeanne T F D Vrancken Peeters; Marjolein L Smidt; Linetta B Koppert Journal: Breast Care (Basel) Date: 2021-08-17 Impact factor: 2.860
Authors: Francisco Pimentel Cavalcante; Felipe Zerwes; Eduardo Camargo Millen; Guilherme Novita; Alessandra Borba Anton de Souza; João Henrique Penna Reis; Helio Rubens de Oliveira Filho; Luciana Naíra de B L Limongi; Barbara Pace Silva de Assis Carvalho; Adriana Magalhães de Oliveira Freitas; Monica Travassos Jourdan; Vilmar Marques de Oliveira; Ruffo Freitas-Junior Journal: Ecancermedicalscience Date: 2022-02-18