1. Predictive and prognostic value of total tumor load in sentinel lymph nodes in breast cancer patients after neoadjuvant treatment using one-step nucleic acid amplification: the NEOVATTL study
- Author
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M. Sancho, Begoña Vieites, M. D. Martín-Salvago, L. Alfaro, María Ángeles López-García, L. López-Vilaró, B. Fernández-Rodriguez, F. Villardell, Octavio Burgues, V. Peg, C.L. Ramirez-Tortosa, R. Rezola, Institut Català de la Salut, [Vieites B] Department of Pathology, Hospital Universitario Virgen del Rocío, Sevilla, Spain. [López-García MÁ] Department of Pathology, Hospital Universitario Virgen del Rocío, Sevilla, Spain. CIBERONC (Centro de Investigación Biomédica en Red de Cáncer), Instituto de Salud Carlos III, Madrid, Spain. [Martín-Salvago MD, Ramirez-Tortosa CL] Department of Pathology, Hospital Universitario Materno-Infantil, Jaén, Spain. [Rezola R] Department of Pathology, Onkologikoa Kutxa Fundazioa, Donostia, Spain. [Sancho M] Department of Pathology, Hospital Universitario de Salamanca, Salamanca, Spain. [Peg V] Servei d’Anatomia Patològica, Vall d’Hebron Hospital Universitari, Barcelona, Spain. CIBERONC (Centro de Investigación Biomédica en Red de Cáncer), Instituto de Salud Carlos III, Madrid, Spain, and Vall d'Hebron Barcelona Hospital Campus
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0301 basic medicine ,Oncology ,Cancer Research ,Neoplasms::Neoplasms by Site::Breast Neoplasms [DISEASES] ,Neoadjuvant systemic therapy ,diagnóstico::técnicas y procedimientos diagnósticos::técnicas de laboratorio clínico::técnicas citológicas::citodiagnóstico::biopsia::biopsia del ganglio linfático centinela [TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS] ,Metastasis ,Breast cancer ,0302 clinical medicine ,OSNA ,Nodes limfàtics - Biòpsia ,Lymph node ,Otros calificadores::/terapia [Otros calificadores] ,neoplasias::neoplasias por localización::neoplasias de la mama [ENFERMEDADES] ,medicine.diagnostic_test ,General Medicine ,Prognosis ,Neoadjuvant Therapy ,Tumor Burden ,medicine.anatomical_structure ,Lymphatic Metastasis ,030220 oncology & carcinogenesis ,Female ,Lymph ,Sentinel Lymph Node ,Nucleic Acid Amplification Techniques ,Research Article ,medicine.medical_specialty ,Prognostic variable ,Prognosi ,Disease-free survival ,Sentinel lymph node ,Breast Neoplasms ,Diagnosis::Diagnostic Techniques and Procedures::Clinical Laboratory Techniques::Cytological Techniques::Cytodiagnosis::Biopsy::Sentinel Lymph Node Biopsy [ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT] ,03 medical and health sciences ,Predictive Value of Tests ,Internal medicine ,Biopsy ,medicine ,Humans ,Retrospective Studies ,Sentinel Lymph Node Biopsy ,business.industry ,diagnóstico::pronóstico::resultado del tratamiento [TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS] ,Other subheadings::/therapy [Other subheadings] ,Nomogram ,Diagnosis::Prognosis::Treatment Outcome [ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT] ,medicine.disease ,030104 developmental biology ,Mama - Càncer - Tractament ,business ,Total tumor load - Abstract
Objective To evaluate the predictive and prognostic value of total tumor load (TTL) in sentinel lymph nodes (SLNs) in patients with infiltrating breast cancer after neoadjuvant systemic therapy (NST). Methods This retrospective multicenter study used data from a Spanish Sentinel Lymph Node database. Patients underwent intraoperative SLN biopsy after NST. TTL was determined from whole nodes using a one-step nucleic acid amplification (OSNA) assay and defined as the total sum of CK19 mRNA copies in all positive SLNs. Cox-regression models identified independent predictive variables, which were incorporated into a nomogram to predict axillary non-SLN metastasis, and identified prognostic variables for incorporation into a disease-free survival (DFS) prognostic score. Results A total of 314 patients were included; most had no lymph node involvement prior to NST (cN0; 75.0% of patients). Most received chemotherapy with or without biologic therapy (91.7%), and 81 patients had a pathologic complete response. TTL was predictive of non-SLN involvement (area under the concentration curve = 0.87), and at a cut-off of 15,000 copies/µL had a negative predictive value of 90.5%. Nomogram parameters included log (TTL + 1), maximum tumor diameter and study-defined NST response. TTL was prognostic of disease recurrence and DFS at a cut-off of 25,000 copies/µL. After a 5-year follow-up, DFS was higher in patients with ≤ 25,000 copies/µL than those with > 25,000 (89.9% vs. 70.0%; p = 0.0017). Conclusions TTL > 15,000 mRNA copies/µL was predictive of non-SLN involvement and TTL > 25,000 mRNA copies/µL was associated with a higher risk of disease recurrence in breast cancer patients who had received NST.
- Published
- 2021
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