All‐cause mortality
Heparin prophylaxis showed no clear difference in mortality compared with no prophylaxis (moderate certainty).
2 findings from 1 review
Symptomatic VTE
Heparin prophylaxis leads to lower symptomatic VTE compared with no prophylaxis (high certainty).
1 finding from 1 review
Major bleeding
Heparin prophylaxis showed no clear difference in major bleeding compared with no prophylaxis (moderate certainty).
1 finding from 1 review
Minor bleeding
Heparin prophylaxis leads to higher minor bleeding compared with no prophylaxis (high certainty).
1 finding from 1 review
Thrombocytopenia
Heparin prophylaxis showed no clear difference in thrombocytopenia compared with no prophylaxis (moderate certainty).
1 finding from 1 review
Quality of life impairment
1 finding from 1 review
All‐cause mortality (main analysis ‐ active cancer) · patients with cancer with venous thromboembolism
Low molecular weight heparin secondary prophylaxis showed no clear difference in all‐cause mortality (main analysis ‐ active cancer) compared with vitamin K antagonist secondary prophylaxis (low certainty).
1 finding from 1 review
All‐cause mortality (time‐to‐event) · patients with cancer with venous thromboembolism
Low molecular weight heparin secondary prophylaxis showed no clear difference in all‐cause mortality (time‐to‐event) compared with vitamin K antagonist secondary prophylaxis (low certainty).
1 finding from 1 review
Recurrent venous thromboembolism (main analysis ‐ active cancer) · patients with cancer with venous thromboembolism
Low molecular weight heparin secondary prophylaxis probably leads to lower recurrent venous thromboembolism (main analysis ‐ active cancer) compared with vitamin K antagonist secondary prophylaxis (moderate certainty).
1 finding from 1 review
Recurrent venous thromboembolism · patients with cancer with venous thromboembolism
Low molecular weight heparin secondary prophylaxis probably leads to lower recurrent venous thromboembolism (time‐to‐event) compared with vitamin K antagonist secondary prophylaxis (moderate certainty).
1 finding from 1 review
Major bleeding · patients with cancer with venous thromboembolism
Low molecular weight heparin secondary prophylaxis showed no clear difference in major bleeding (main analysis ‐ active cancer) compared with vitamin K antagonist secondary prophylaxis (low certainty).
1 finding from 1 review
Minor bleeding (main analysis ‐ active cancer) · patients with cancer with venous thromboembolism
It is very uncertain whether low molecular weight heparin secondary prophylaxis changes minor bleeding (main analysis ‐ active cancer) compared with vitamin K antagonist secondary prophylaxis (very low certainty).
1 finding from 1 review
Thrombocytopenia (main analysis‐ active cancer) · patients with cancer with venous thromboembolism
Low molecular weight heparin secondary prophylaxis showed no clear difference in thrombocytopenia (main analysis‐ active cancer) compared with vitamin K antagonist secondary prophylaxis (low certainty).
1 finding from 1 review
All‐cause mortality · patients with cancer with venous thromboembolism
Direct oral anticoagulant secondary prophylaxis showed no clear difference in all‐cause mortality compared with low molecular weight heparin secondary prophylaxis (low certainty).
1 finding from 1 review
Recurrent VTE · patients with cancer with venous thromboembolism
Direct oral anticoagulant secondary prophylaxis may leads to lower recurrent VTE compared with low molecular weight heparin secondary prophylaxis (low certainty).
1 finding from 1 review
Major bleeding · patients with cancer with venous thromboembolism
Direct oral anticoagulant secondary prophylaxis showed no clear difference in major bleeding compared with low molecular weight heparin secondary prophylaxis (low certainty).
1 finding from 1 review
Major GI bleeding · patients with cancer with venous thromboembolism
Direct oral anticoagulant secondary prophylaxis showed no clear difference in major GI bleeding compared with low molecular weight heparin secondary prophylaxis (low certainty).
1 finding from 1 review
Major upper GI bleeding · patients with cancer with venous thromboembolism
It is very uncertain whether direct oral anticoagulant secondary prophylaxis changes major upper GI bleeding compared with low molecular weight heparin secondary prophylaxis (very low certainty).
1 finding from 1 review
Major lower GI bleeding · patients with cancer with venous thromboembolism
It is very uncertain whether direct oral anticoagulant secondary prophylaxis changes major lower GI bleeding compared with low molecular weight heparin secondary prophylaxis (very low certainty).
1 finding from 1 review
Major non‐GI bleeding · patients with cancer with venous thromboembolism
It is very uncertain whether direct oral anticoagulant secondary prophylaxis changes major non‐GI bleeding compared with low molecular weight heparin secondary prophylaxis (very low certainty).
1 finding from 1 review