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Updated: Nov 26, 2025

A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis
Published on: June 2, 2015
[Contraception and venous thromboembolism]
Marc Blondon1, Alessandro Casini1, Pierre Fontana1
1Service d'angiologie et d'hémostase, HUG, 1211 Genève 14, et Faculté de médecine, Université de Genève, 1211 Genève 4.
Abstract:
Combined oral contraceptives remain in 2020 the most used contraceptive method in Switzerland and Europe, and are found in about half of venous thromboembolism (VTE) occurring in women aged up to 50 years. In this narrative review, we describe the determinants of the VTE risk, related to the types of oral contraceptives and to genetic or acquired risk factors of users, while summarizing several current recommendations of prescription for contraceptives. The complex management of contraception at the time of VTE should be discussed with patients, in order to minimize the risks of undesired pregnancy, abnormal uterine bleeding and recurrent VTE.
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