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Updated: Mar 20, 2026

Author Spotlight: Advancing Cancer Associated Thrombosis Research in Rodent Models
Published on: January 5, 2024
Breast cancer-associated venous thromboembolism: A case-control study
Danilo Rebouças1, Maria Costa2, Luiz Thuler3
1Department of Medical Oncology, Instituto Nacional de Câncer, Rua Visconde de Santa Isabel 274, Rio de Janeiro 20560-120, Brazil.
Venous thromboembolism (VTE) is common in breast cancer patients, often occurring early in treatment. Age over 50, poor performance status, and central venous catheters significantly increase VTE risk.
Area of Science:
- Oncology
- Hematology
- Clinical Research
Background:
- Venous thromboembolism (VTE) is a serious complication in breast cancer patients, leading to increased morbidity and mortality.
- Risk factors and prognosis of VTE in this population are not well-understood.
- Early identification and management of VTE are crucial for improving patient outcomes.
Purpose of the Study:
- To identify baseline and treatment characteristics predicting VTE occurrence in breast cancer patients.
- To evaluate the prognosis of VTE in breast cancer patients.
- To inform risk stratification and potential preventative strategies for VTE.
Main Methods:
- A case-control study was conducted involving breast cancer patients diagnosed with VTE between 2007 and 2011.
- 225 VTE cases were compared with 225 control patients without VTE.
- Data collected included patient demographics, cancer characteristics, treatment, and VTE details.
Main Results:
- The majority of VTE events were unilateral lower extremity thromboses, predominantly proximal.
- VTE occurred most frequently within the first three years post-diagnosis, particularly in the initial six months.
- Significant predictors for VTE included age (≥50 years), Eastern Cooperative Oncology Group Performance Status (ECOG PS ≥3), and the presence of a central venous catheter (CVC).
Conclusions:
- VTE in breast cancer patients often manifests early in the disease course.
- Patient age, performance status, and CVC use are key factors associated with VTE incidence.
- Further prospective research is recommended to explore the efficacy of outpatient thromboprophylaxis in high-risk breast cancer patients.
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