Chemotherapy Effect on Estradiol Levels in Patients with Triple-negative Breast Cancer: A Clinical Prospective Study from Indonesia
DOI:
https://doi.org/10.3889/oamjms.2022.6882Keywords:
Triple-negative breast cancer, Estradiol level, Chemotherapy, Prospective studyAbstract
Research Background: This study aimed to scrutinize the chemotherapy’s effect on estradiol levels in patients with triple-negative breast cancer (TNBC) at low-resource country. Methods: This prospective analytic observational cohort study involved patients with TNBC who had undergone surgery and had never received chemotherapy or hormonal therapy before. Patients were checked for estradiol levels before and after chemotherapy. This study was conducted at the Surgical Oncology Department of Regional Public Hospital Dr. Moewardi, Surakarta Indonesia, from April 2020 to March 2021. Descriptive data were presented in a frequency table based on age, menopausal status, parity status, breastfeeding status, hormonal contraception, hormonal contraception duration, family history, stage, and histological grade. Differences in estradiol changes before and after chemotherapy (mean+sd) were then reported.
Results: From a total of 23 patients, 21 patients (91.3%) experienced a decrease in estradiol levels, while two patients (8.7%) underwent an increase in serum estradiol levels after chemotherapy. The mean decrease was 11.57 pg/ml. The two samples that experienced an increase in estradiol levels had a mean increase of 16.5 pg/ml. There was a significant difference between estradiol levels before and after undergoing chemotherapy, with p-value=0.001.
Conclusions: In this research, chemotherapy reduced estradiol levels in TNBC patients. Statistically significant reductions in estradiol levels were based on the disease stage.
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Copyright (c) 2022 Rizka Vinkan Septiani, Widyanti Soewoto, Ida Bagus Budhi (Author)

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