Pregnancy and venous thromboembolism: ‘TIPPS’ for risk stratification

Pregnancy-associated venous thromboembolism (VTE) is a leading cause of maternal mortality, but is relatively uncommon. It is clear that the antepartum and postpartum periods have different magnitudes of risk and distinct risk factors for VTE and therefore must be considered separately. Absolute daily risks of VTE must be understood and explored when deciding to prescribe antepartum or postpartum thromboprophylaxis and must also be balanced against the downsides of prophylaxis. When the risks for VTE and bleeding are both low, other burdens of thromboprophylaxis must be weighed in and a decision made after an individualized patient values- and patient preferences-based discussion. Risk stratification is essential to ensure that the practicing clinician strikes the right balance.

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