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Impact of HER2 receptor status on axillary nodal burden in patients with non-luminal A invasive ductal breast carcinoma / Receptores HER2, compromiso ganglionar axilar y sobrevida en mujeres con cáncer de mama ductal invasivo
Kustic, Domagoj; Lovasic, Franjo; Belac-Lovasic, Ingrid; Avirovic, Manuela; Ruzic, Alen; Petretic-Majnaric, Silvana.
  • Kustic, Domagoj; Clinical Hospital Center Rijeka. Clinical Department of Nuclear Medicine. Rijeka. HR
  • Lovasic, Franjo; Clinical Hospital Center Rijeka. Clinic for Surgery. Rijeka. HR
  • Belac-Lovasic, Ingrid; Clinical Hospital Center Rijeka. Clinic for Radiotherapy and Oncology. Rijeka. HR
  • Avirovic, Manuela; University of Rijeka. Faculty of Medicine. Department of General Pathology and Pathological Anatomy. Rijeka. HR
  • Ruzic, Alen; University of Rijeka. Faculty of Medicine. Department of Cardiology. Rijeka. HR
  • Petretic-Majnaric, Silvana; Clinical Hospital Center Rijeka. Clinical Department of Nuclear Medicine. Rijeka. HR
Rev. méd. Chile ; 147(5): 557-567, mayo 2019. tab, graf
Article in English | LILACS | ID: biblio-1014264
ABSTRACT
ABSTRACT

Background:

Breast cancer (BC) is the most common malignancy in women.

Aim:

To assess the impact of HER2 status on axillary lymph node (ALN) involvement in patients with invasive ductal carcinoma of no special type (IDC-NST) both at diagnosis and during the 4-year postoperative period. Patients and

Methods:

We retrospectively included 375 women with an early clinical stage of non-luminal IDC-NST who between 2007 and 2013 underwent breast surgery at a clinical hospital. They were divided into phenotype-based groups HR+HER2-, HR+HER2+, HR-HER2+ and HR-HER2-. Only patients with sentinel lymph node (SLN) macrometastases underwent ALN dissection. If > 3 ALNs were positive, radiotherapy was delivered. All patients were treated with chemotherapy, HER2+ BC patients received trastuzumab, and hormone receptor (HR)-positive BC patients received hormonal therapy.

Results:

Larger tumor size, higher grade, HR+, HER2+ status, and lymphovascular invasion (LVI) were predictive for ALN metastases at diagnosis. The poorest overall, disease-free, and distant recurrence-free survival (OS, DFS, DRFS) were found in the HR-HER2- group, while the poorest locoregional recurrence-free survival (LRFS) was observed in HR-HER2+ and HR-HER2- groups. HER2 status was not predictor of survival.

Conclusions:

HER2+ status was predictive for ALN involvement at diagnosis but had no effect on 4-year LRFS in these patients.
RESUMEN
Antecedentes El cáncer de mama es el tumor maligno más común en mujeres.

Objetivo:

Conocer el impacto del estado HER2 sobre el compromiso ganglionar axilar al momento del diagnóstico y durante los primeros cuatro años después de la cirugía en mujeres con carcinoma ductal invasivo de tipo no especial (IDC-NST). Pacientes y

Métodos:

Incluimos retrospectivamente a 375 mujeres en etapas clínicas iniciales de IDC-NST que fueron operadas en un hospital clínico. Ellas se dividieron en grupos de acuerdo al fenotipo HR+HER2-, HR+HER2+, HR-HER2+y HR-HER2-. La disección de ganglios axilares se efectuó solo en las pacientes con macrometástasis en el ganglio centinela. Si había más de tres ganglios comprometidos, se efectuó radioterapia. Todas las pacientes se trataron con quimioterapia. Las pacientes HER2+ recibieron trastuzumab y las pacientes HR+ recibieron hormonoterapia.

Resultados:

Tumores más grandes, de mayor grado de malignidad, HR+, HER2+ y la invasión linfovascular fueron predictivos de la presencia de metástasis axilares al momento del diagnóstico. La sobrevida más baja se observó en pacientes HR-HER2+. La sobrevida libre de recurrencia locorregional más baja, se observó en pacientes HR-HER2+ y HR-HER2-. HER2 no fue predictor de sobrevida.

Conclusiones:

En estas mujeres, HER2+fue predictor de la presencia de compromiso ganglionar axilar al momento del diagnóstico pero no de la sobrevida a cuatro años.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Breast Neoplasms / Carcinoma, Ductal, Breast / Receptor, ErbB-2 / Sentinel Lymph Node Type of study: Observational study / Prognostic study / Risk factors Limits: Adult / Aged / Female / Humans Language: English Journal: Rev. méd. Chile Journal subject: Medicine Year: 2019 Type: Article Affiliation country: Croatia Institution/Affiliation country: Clinical Hospital Center Rijeka/HR / University of Rijeka/HR

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Full text: Available Index: LILACS (Americas) Main subject: Breast Neoplasms / Carcinoma, Ductal, Breast / Receptor, ErbB-2 / Sentinel Lymph Node Type of study: Observational study / Prognostic study / Risk factors Limits: Adult / Aged / Female / Humans Language: English Journal: Rev. méd. Chile Journal subject: Medicine Year: 2019 Type: Article Affiliation country: Croatia Institution/Affiliation country: Clinical Hospital Center Rijeka/HR / University of Rijeka/HR