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Correlation between the proportion of healthy mammary tissue versus tumor size in breast-conserving surgeries
Pinson, Gabriela Grando; Pacheco, Julianes; Júnior, Vanderlei Carlos Bertuol; Vivian, Fernando.
  • Pinson, Gabriela Grando; Universidade de Caxias do Sul ­ Caxias do Sul (RS), Brazil. Caxias do Sul. BR
  • Pacheco, Julianes; Universidade de Caxias do Sul ­ Caxias do Sul (RS), Brazil. Caxias do Sul. BR
  • Júnior, Vanderlei Carlos Bertuol; Universidade de Caxias do Sul ­ Caxias do Sul (RS), Brazil. Caxias do Sul. BR
  • Vivian, Fernando; Universidade de Caxias do Sul ­ Caxias do Sul (RS), Brazil. Caxias do Sul. BR
Mastology (Online) ; 30: 1-7, 2020.
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1100065
ABSTRACT

Objective:

To evaluate the proportion of excised healthy tissue in breast-conserving surgeries and to identify possible tendency toward excision in healthy tissue beyond the ideal for oncological safety.

Methods:

Data from patients who underwent breastconserving surgery at the Hospital Geral de Caxias do Sul from January 2010 to December 2016 were analyzed. For statistical purposes, means, standard deviations, Student's t-test, and linear regression were used for numerical variables. Risk estimate by odds ratio (OR) was performed through logistic regression with 95% CI. A significance level (alpha) of 5% was adopted.

Results:

A total of 124 cases were analyzed. The mean tumor size observed by ultrasonography was 1.7 ± 0.95 cm. The tumor size was 1.9 ± 1.12 cm. The mean size of the resected surgical specimens was 7.8 ± 3.4cm. When comparing the tumor size in the anatomopathological examination and the size in ultrasonography, the mean differences accounted for 0.6 cm (95%CI -0.10­ 0.44; p = 0.2). Conversely, the difference in the size of the total surgical specimen versus tumor size in the anatomopathological examination was 5.8 cm (95%CI 5.2­6.5; p < 0.001). There was no statistical difference regarding the tumor location nor size of the surgical specimen.

Conclusion:

It was observed that there is a tendency toward excising a large amount of healthy tissue in breastconserving surgeries far beyond what is recommended in order to consider the oncological safety of excised margins.


Texto completo: DisponíveL Índice: LILACS (Américas) Tipo de estudo: Estudo prognóstico Idioma: Inglês Revista: Mastology (Online) Assunto da revista: Neoplasias da Mama Ano de publicação: 2020 Tipo de documento: Artigo País de afiliação: Brasil Instituição/País de afiliação: Universidade de Caxias do Sul ­ Caxias do Sul (RS), Brazil/BR

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Texto completo: DisponíveL Índice: LILACS (Américas) Tipo de estudo: Estudo prognóstico Idioma: Inglês Revista: Mastology (Online) Assunto da revista: Neoplasias da Mama Ano de publicação: 2020 Tipo de documento: Artigo País de afiliação: Brasil Instituição/País de afiliação: Universidade de Caxias do Sul ­ Caxias do Sul (RS), Brazil/BR