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Main Authors: Kazuya Takeda, Rei Umezawa, Takaya Yamamoto, Noriyoshi Takahashi, Yu Suzuki, Keita Kishida, So Omata, Keiichi Jingu
Format: Artículo Open Access
Published: Wiley 2024
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Online Access:https://onlinelibrary.wiley.com/doi/10.1002/pro6.1221
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author Kazuya Takeda
Rei Umezawa
Takaya Yamamoto
Noriyoshi Takahashi
Yu Suzuki
Keita Kishida
So Omata
Keiichi Jingu
author_facet Kazuya Takeda
Rei Umezawa
Takaya Yamamoto
Noriyoshi Takahashi
Yu Suzuki
Keita Kishida
So Omata
Keiichi Jingu
Kazuya Takeda
Rei Umezawa
Takaya Yamamoto
Noriyoshi Takahashi
Yu Suzuki
Keita Kishida
So Omata
Keiichi Jingu
collection Wiley Open Access
contents Lymphocytopenia following adjuvant radiotherapy for breast cancer Kazuya Takeda Rei Umezawa Takaya Yamamoto Noriyoshi Takahashi Yu Suzuki Keita Kishida So Omata Keiichi Jingu Precision Radiation Oncology AbstractObjectiveWe retrospectively analyzed breast cancer patients who received adjuvant radiotherapy to determine the incidence of lymphocytopenia and its risk factors.MethodsWe reviewed 812 patients with breast cancer who received postoperative radiotherapy. Patients were divided into two groups based on the use of chemotherapy, and a generalized linear regression model was used to explore predictive factors for grade 2 or higher lymphocytopenia. We also examined the effect of lymphocytopenia on overall survival.ResultsGrade 2 or higher lymphocytopenia was observed in 19.4% of patients who did not receive chemotherapy and 45.1% of patients who received chemotherapy. In multivariate analysis, bilateral disease, regional lymph node irradiation, and baseline lymphocytopenia were associated with lymphocytopenia in patients who did not receive cytotoxic chemotherapy. Regional lymph node irradiation, baseline lymphocytopenia, use of antimetabolites, and use of molecular‐targeted agents were associated with lymphocytopenia in patients treated with chemotherapy. In the survival analysis, lymphocytopenia was associated with worse overall survival only in patients treated with cytotoxic chemotherapy (p = 0.039), and not in patients who did not receive chemotherapy (p = 0.77).ConclusionThe analysis revealed the incidence and risk factors of lymphocytopenia after postoperative radiotherapy in patients with breast cancer. 10.1002/pro6.1221 http://creativecommons.org/licenses/by-nc-nd/4.0/
doi_str_mv 10.1002/pro6.1221
format Artículo Open Access
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institution Wiley Open Access
license_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
publishDate 2024
publisher Wiley
record_format wiley_oa
spellingShingle Lymphocytopenia following adjuvant radiotherapy for breast cancer
Kazuya Takeda
Rei Umezawa
Takaya Yamamoto
Noriyoshi Takahashi
Yu Suzuki
Keita Kishida
So Omata
Keiichi Jingu
Precision Radiation Oncology
Lymphocytopenia following adjuvant radiotherapy for breast cancer Kazuya Takeda Rei Umezawa Takaya Yamamoto Noriyoshi Takahashi Yu Suzuki Keita Kishida So Omata Keiichi Jingu Precision Radiation Oncology AbstractObjectiveWe retrospectively analyzed breast cancer patients who received adjuvant radiotherapy to determine the incidence of lymphocytopenia and its risk factors.MethodsWe reviewed 812 patients with breast cancer who received postoperative radiotherapy. Patients were divided into two groups based on the use of chemotherapy, and a generalized linear regression model was used to explore predictive factors for grade 2 or higher lymphocytopenia. We also examined the effect of lymphocytopenia on overall survival.ResultsGrade 2 or higher lymphocytopenia was observed in 19.4% of patients who did not receive chemotherapy and 45.1% of patients who received chemotherapy. In multivariate analysis, bilateral disease, regional lymph node irradiation, and baseline lymphocytopenia were associated with lymphocytopenia in patients who did not receive cytotoxic chemotherapy. Regional lymph node irradiation, baseline lymphocytopenia, use of antimetabolites, and use of molecular‐targeted agents were associated with lymphocytopenia in patients treated with chemotherapy. In the survival analysis, lymphocytopenia was associated with worse overall survival only in patients treated with cytotoxic chemotherapy (p = 0.039), and not in patients who did not receive chemotherapy (p = 0.77).ConclusionThe analysis revealed the incidence and risk factors of lymphocytopenia after postoperative radiotherapy in patients with breast cancer. 10.1002/pro6.1221 http://creativecommons.org/licenses/by-nc-nd/4.0/
title Lymphocytopenia following adjuvant radiotherapy for breast cancer
topic Precision Radiation Oncology
url https://onlinelibrary.wiley.com/doi/10.1002/pro6.1221