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[Venous thromboembolism and oral contraception]
Milena Veljković1, Jasmina Popovć
1Dom zdravlja Nis, Organizaciona jedinica za zdravstvenu zastitu zena. milicaveljkovic@gmail.com
Medicinski Pregled
|December 29, 2010
Summary
Combined oral contraceptives (COCs) slightly raise venous thromboembolism risk, particularly in women with pre-existing conditions. Healthy women face minimal risk, but those with a history of clotting disorders should exercise caution.
Area of Science:
- Pharmacology and Toxicology
- Reproductive Health
- Thrombosis Research
Context:
- Monophasic combined oral contraceptives (COCs) are widely available, containing constant doses of estrogen and progestin.
- While generally safe and effective, COCs are known to slightly elevate the risk of venous thromboembolism (VTE).
- The absolute risk of VTE is low in non-pregnant, reproductive-aged women but increases with factors like age, obesity, and surgery.
Purpose:
- To evaluate the risk of venous thromboembolism (VTE) associated with combined oral contraceptive (COC) use.
- To analyze the dose-dependent relationship between estrogen in COCs and coagulation factor synthesis.
- To assess the clinical impact of VTE risk in different patient populations.
Summary:
- Combined oral contraceptives (COCs) can increase the synthesis of coagulation factors in a dose-dependent manner.
- However, changes in most coagulation parameters are minor and do not significantly impact the clinical risk of VTE in healthy women.
- Women with inherited coagulation disorders face a significantly higher VTE risk when using estrogen-containing oral contraception.
Impact:
- The increased VTE risk from COCs has minimal impact on healthy women.
- Women with a history of thromboembolism or specific thrombophilias experience a substantial increase in VTE risk.
- Understanding these risks is crucial for informed decision-making regarding oral contraceptive use, especially in high-risk individuals.
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