Findings

What do systematic reviews say?

6 questions · 6 findings · 1 reviews

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 6 · 100%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

LMWH prophylaxis vs UFH

Symptomatic PE · pregnant women at increased risk of VTE during pregnancy and the early postnatal period

1 finding from 1 review

Venous thromboembolism prophylaxis for women at risk during pregnancy and the early postnatal period 2021 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 287 participants
Very low

LMWH prophylaxis vs UFH

Symptomatic DVT · pregnant women at increased risk of VTE during pregnancy and the early postnatal period

1 finding from 1 review

Venous thromboembolism prophylaxis for women at risk during pregnancy and the early postnatal period 2021 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 287 participants
Very low

Heparin prophylaxis vs no treatment/placebo

Symptomatic PE · pregnant women at increased risk of VTE during pregnancy and the early postnatal period

It is very uncertain whether antenatal (± postnatal) prophylaxis: heparin (LMWH or UFH) changes symptomatic PE ( compared with no treatment/placebo (very low certainty).

1 finding from 1 review

Venous thromboembolism prophylaxis for women at risk during pregnancy and the early postnatal period 2021 · Cochrane Headline outcomes only
RR 0.33 [0.02, 7.14]
3 studies · 187 participants
Very low

LMWH prophylaxis vs UFH

Symptomatic thromboembolic events ( · pregnant women at increased risk of VTE during pregnancy and the early postnatal period

It is very uncertain whether antenatal (± postnatal) prophylaxis: LMWH changes symptomatic thromboembolic events ( compared with UFH (very low certainty).

1 finding from 1 review

Venous thromboembolism prophylaxis for women at risk during pregnancy and the early postnatal period 2021 · Cochrane Headline outcomes only
RR 0.47 [0.09, 2.49]
4 studies · 404 participants
Very low

Heparin prophylaxis vs no treatment/placebo

Symptomatic DVT · pregnant women at increased risk of VTE during pregnancy and the early postnatal period

It is very uncertain whether antenatal (± postnatal) prophylaxis: heparin (LMWH or UFH) changes symptomatic DVT ( compared with no treatment/placebo (very low certainty).

1 finding from 1 review

Venous thromboembolism prophylaxis for women at risk during pregnancy and the early postnatal period 2021 · Cochrane Headline outcomes only
RR 0.33 [0.04, 3.1]
4 studies · 227 participants
Very low

Heparin prophylaxis vs no treatment/placebo

Symptomatic thromboembolic events ( · pregnant women at increased risk of VTE during pregnancy and the early postnatal period

It is very uncertain whether antenatal (± postnatal) prophylaxis: heparin (LMWH or UFH) changes symptomatic thromboembolic events ( compared with no treatment/placebo (very low certainty).

1 finding from 1 review

Venous thromboembolism prophylaxis for women at risk during pregnancy and the early postnatal period 2021 · Cochrane Headline outcomes only
RR 0.39 [0.08, 1.98]
4 studies · 476 participants
Very low