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Cirugía y cirujanos
versión On-line ISSN 2444-054Xversión impresa ISSN 0009-7411
Resumen
DOKCU, Şeref et al. Prognostic value of KI-67 proliferation index in luminal breast cancers. Cir. cir. [online]. 2023, vol.91, n.1, pp.1-8. Epub 16-Mayo-2023. ISSN 2444-054X. https://doi.org/10.24875/ciru.22000043.
Aim:
This study aimed to examine the prognostic significance of the KI-67 proliferation index, especially in breast cancer (BC) patients without HER-2 expression and no nodal involvement.
Material and methods:
The database of hormone-receptor-positive patients who underwent surgery for BC in our Surgical Oncology Clinic between 2008 and 2020 was retrospectively reviewed and recorded. Patients were categorized based on their KI-67 level, considering the cutoff value of 20%.
Results:
Our study revealed that tumors with high KI-67 levels were more likely to have a more advanced histological grade (p = 0.00) and size (p = 0.038). In the univariant analysis, KI-67 level was effective on overall survival (p = 0.044) and disease-free survival (p = 0.048). However, we found that there was no independent prognostic factor in the multivariant analysis.
Conclusion:
Although the Ki-67 proliferation index does not yet have an agreed threshold value and scoring methodology, it can also be used to determine prognosis and evaluate treatment response in some patients.
Palabras llave : Breast cancer; KI-67 index; Molecular subtypes; Prognostic factor.