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Inicio Cirugía Española (English Edition) Intraoperative sentinel node biopsy, is it worth the wait?
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Vol. 101. Issue 5.
Pages 325-332 (May 2023)
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Vol. 101. Issue 5.
Pages 325-332 (May 2023)
Original article
Intraoperative sentinel node biopsy, is it worth the wait?
Biopsia selectiva de ganglio centinela en cáncer de mama, ¿está justificada la espera al resultado intraoperatorio?
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Alba García Chiloeches
Corresponding author
alba.gch@gmail.com

Corresponding author.
, Alberto González Barranquero, Luz Divina Juéz Sáez, Sara Corral Moreno, Sonia Rivas Fidalgo, Paula Pastor Peinado, Luis Jacobo Cabañas Montero, José María Fernández Cebrián
Servicio de Cirugía General y del Aparato Digestivo, Hospital Universitario Ramón y Cajal, Madrid, Spain
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Figures (2)
Tables (5)
Table 1. Baseline characteristics of the patients.
Table 2. Baseline characteristics of the breast lesion.
Table 3. Surgical data.
Table 4. Univariate analysis and multivariate analysis.
Table 5. Analysis of lymph node dissections performed.
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Abstract
Introduction

In our institution, the study of selective sentinel node biopsy (SLNB) is performed intraoperatively. The main objective of our study is to know the proportion of patients who benefits from the waiting of the results of SLNB.

Methods

A retrospective analysis of patients operated on our center between January 1st, 2018 and June 30, 2019 was carried out. We included women diagnosed with T1-T2 tumors, treated by lumpectomy and SLNB studied using OSNA method.

Results

Our study included 149 women. There were not statistically significant differences in terms of demographic data between the group treated with axillary lymph node dissection (ALND) and exclusively SLNB group. After analysis of SLN intraoperatively, there were performed 18 axillary lymphadenectomies. Only in six of this 18 cases, three or more sentinel nodes were founded. The location of the tumor, the presence of lymphovascular permeation and the total tumor load (TTL) showed statistically significant differences between groups. Only the TTL was established as the independent factor of the need for ALND.

Discussion

Obtaining a deferred result of the SLNB allowed reducing the time of anesthesia and occupation of the operating room, since in a high percentage of cases an additional procedure is not performed.

Keywords:
Selective sentinel node biopsy
Lymph node excision
Breast neoplasm
One-step nucleic acid amplification
Resumen
Objetivo

En nuestro centro el estudio de la biopsia selectiva del ganglio centinela (BSGC) se realiza de forma intraoperatoria. El objetivo principal del presente trabajo es conocer qué proporción de pacientes se beneficia de la espera intraoperatoria al resultado de la BSGC.

Material y métodos

Se ha realizado un análisis retrospectivo de pacientes intervenidas en nuestro centro entre el 1 de enero de 2018 y el 30 de junio de 2019. Se incluyeron mujeres con tumores T1-T2, tratadas mediante tumorectomía y BSGC estudiado mediante método OSNA (one-step nucleic acid amplification).

Resultados

Se incluyeron 149 mujeres en el estudio. No se encontraron diferencias estadísticamente significativas en cuestión de datos demográficos entre el grupo tratado mediante linfadenectomía axilar (LA) y el grupo tratado exclusivamente con BSGC. Se realizaron 18 LA tras el análisis del GC estudiado de forma intraoperatoria. Solo en 6 de los casos se extrajeron tres o más GC. La localización por cuadrante de la lesión, permeación linfovascular y carga tumoral total muestran diferencias estadísticamente significativas entre los grupos. En el análisis multivariante, únicamente la carga tumoral total (TTL) se establece como variable independiente de necesidad de LA.

Conclusiones

La obtención del resultado de la BSGC de forma diferida permite disminuir el tiempo de anestesia de las pacientes y tiempo de ocupación de quirófano, ya que, en el momento actual, no se realiza ningún procedimiento adicional en un elevado porcentaje de casos.

Palabras clave:
Biopsia selectiva de ganglio centinela
Linfadenectomía axilar
Cáncer de mama
One-step nucleic acid amplification

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