Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

113 questions · 113 findings · 6 reviews · Vascular

No studies found 21 · 18.6%GRADE not reported 10 · 8.8%Very low 0 · 0%Low 32 · 28.3%Moderate 39 · 34.5%High 11 · 9.7%

Oral factor Xa inhibitors vs conventional anticoagulation

Recurrent PE · patients with a pulmonary embolism, confirmed by standard imaging techniques

Oral factor Xa inhibitors showed no clear difference in recurrent PEa compared with conventional anticoagulation (moderate certainty).

1 finding from 1 review

Oral factor Xa inhibitors vs conventional anticoagulation

Recurrent VTEc · patients with a pulmonary embolism, confirmed by standard imaging techniques

Oral factor Xa inhibitors showed no clear difference in recurrent VTEc compared with conventional anticoagulation (moderate certainty).

1 finding from 1 review

Oral factor Xa inhibitors vs conventional anticoagulation

DVTd · patients with a pulmonary embolism, confirmed by standard imaging techniques

Oral factor Xa inhibitors showed no clear difference in DVTd compared with conventional anticoagulation (moderate certainty).

1 finding from 1 review

ASA with LMWH vs placebo or IVIG

Bleeding ‐ major (bleeding requiring transfusion) Length of · people with antiphospholipid antibodies and no history of thrombosis

ASA with LMWH showed no clear difference in bleeding ‐ major (bleeding requiring transfusion) Length of compared with placebo or IVIG (moderate certainty).

1 finding from 1 review

ASA with LMWH vs placebo or IVIG

Bleeding ‐ other (bleeding during first trimester) Length of · people with antiphospholipid antibodies and no history of thrombosis

ASA with LMWH showed no clear difference in bleeding ‐ other (bleeding during first trimester) Length of compared with placebo or IVIG (moderate certainty).

1 finding from 1 review

ASA with LMWH vs placebo or IVIG

Bleeding ‐ other (postpartum haemorrhage) Length of · people with antiphospholipid antibodies and no history of thrombosis

ASA with LMWH showed no clear difference in bleeding ‐ other (postpartum haemorrhage) Length of compared with placebo or IVIG (moderate certainty).

1 finding from 1 review

ASA + high‐dose LMWH vs ASA + low‐dose LMWH or UFH

Subcutaneous bruises · people with antiphospholipid antibodies and no history of thrombosis

ASA + high‐dose LMWH showed no clear difference in subcutaneous bruises compared with ASA + low‐dose LMWH or UFH (low certainty).

1 finding from 1 review