Key result
A combination of LMWH and warfarin, with dose-adjusted LMWH given thrice daily, was effective in the treatment of small mechanical valve thromboses in a pregnant woman.
Why the study?
Standard LMWH dosing every 12 hours targeting peak anti-Xa levels in pregnant women with mechanical heart valves is commonly associated with subtherapeutic trough levels and inadequate anticoagulation.
Does a double anticoagulant regimen (LMWH and warfarin) or thrice-daily LMWH effectively treat suspected mechanical valve thrombosis in pregnant women?
Case Report (n=1)
Does a double anticoagulant regimen (LMWH and warfarin) or thrice-daily LMWH effectively treat suspected mechanical valve thrombosis in pregnant women?
Thrice-daily dose-adjusted LMWH or a combination of LMWH and warfarin may be effective for managing small mechanical valve thromboses during pregnancy, challenging previous twice-daily LMWH guidelines.
May warrant consideration in select pregnant patients with small valve thromboses; leaves open the need for prospective validation of dosing regimens.
Most previous treatment guidelines for pregnant women with mechanical heart valves (MHVs) recommended that low molecular weight heparin (LMWH) should be applied once every 12 hours and only as required to reach peak anti-Xa levels of around 1.0–1.2 IU/mL,but it is commonly associated with and subtherapeutic trough levels consequently with an inadequate level of anticoagulation. Our case report here together with a literature review suggests that dose-adjusted (Target trough anti-Xa levels of 0.6-0.7 IU/mL and with peak anti-Xa levels of around 1.0–1.2 IU/mL or less than 1.5 IU/mL) LMWH should be given thrice daily throughout pregnancy.In addition, the findings of this rare case indicate that a combination of LMWH and warfarin is effective in the treatment of small thromboses in pregnancy.
No takes yet. Share an insight, caveat, or question.
Bai et al. (2022) conducted a case report in Suspected mechanical valve thrombosis (n=1). Double anticoagulant regimen (LMWH and warfarin) was evaluated on Treatment of small thromboses. A combination of LMWH and warfarin, with dose-adjusted LMWH given thrice daily, was effective in the treatment of small mechanical valve thromboses in a pregnant woman.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: