Asymptomatic DVT · participants at risk of venous thromboembolism
1 finding from 1 review
Symptomatic PE · ambulatory cancer patients receiving chemotherapy
Low‐molecular‐weight heparin showed no clear difference in symptomatic PE compared with with active control (1); GRADE not reported.
3 findings from 1 review
Symptomatic VTE · ambulatory cancer patients receiving chemotherapy
Low‐molecular‐weight heparin showed no clear difference in symptomatic VTE compared with with active control (1) (low certainty).
3 findings from 1 review
RR 2.89 [0.12, 66.75]
1 study · 51 participants
Low
RR 0.51 [0.22, 1.17]
2 studies · 781 participants
Moderate
RR 0.33 [0.14, 0.83]
1 study · 439 participants
High
Symptomatic DVT · ambulatory cancer patients receiving chemotherapy
The review found no eligible studies for this question.
3 findings from 1 review
Symptomatic PE · ambulatory cancer patients receiving chemotherapy
Ultra‐low‐molecular‐weight heparin showed no clear difference in symptomatic PE compared with placebo (moderate certainty).
1 finding from 1 review
Symptomatic VTE · ambulatory cancer patients receiving chemotherapy
Ultra‐low‐molecular‐weight heparin leads to lower symptomatic VTE compared with placebo (high certainty).
1 finding from 1 review
Symptomatic DVT · ambulatory cancer patients receiving chemotherapy
Ultra‐low‐molecular‐weight heparin leads to lower symptomatic DVT compared with placebo (high certainty).
1 finding from 1 review
Symptomatic catheter‐related thrombosis (up to 3 months) · people with cancer with thrombosis prophylaxis and central venous catheters
It is very uncertain whether low‐molecular‐weight heparin (LMWH) changes symptomatic catheter‐related thrombosis (up to 3 months) compared with vitamin K antagonist (VKA) (very low certainty).
1 finding from 1 review
Symptomatic catheter‐related thrombosis (up to 3 months) · people with cancer with thrombosis prophylaxis and central venous catheters
Low‐molecular‐weight heparin (LMWH) probably leads to lower symptomatic catheter‐related thrombosis (up to 3 months) compared with no LMWH (moderate certainty).
1 finding from 1 review
Symptomatic DVT · adults undergoing KA
Low‐molecular‐weight heparin showed no clear difference in symptomatic DVT: assessed by presence of symptoms and confirmed by a… compared with no prophylaxis (low certainty).
1 finding from 1 review
Symptomatic catheter‐related thrombosis measured as asymptomatic catheter‐related thrombosis (up to 3 months) · people with cancer with thrombosis prophylaxis and central venous catheters
It is very uncertain whether low‐molecular‐weight heparin (LMWH) changes symptomatic catheter‐related thrombosis measured as asymptomatic… compared with vitamin K antagonist (VKA) (very low certainty).
1 finding from 1 review
Symptomatic catheter‐related thrombosis measured as asymptomatic catheter‐related thrombosis (up to 3 months) · people with cancer with thrombosis prophylaxis and central venous catheters
It is very uncertain whether low‐molecular‐weight heparin (LMWH) changes symptomatic catheter‐related thrombosis measured as asymptomatic… compared with no LMWH (very low certainty).
1 finding from 1 review
Intervention not reported
Symptomatic VTE · patients undergoing abdominal or pelvic surgery
The intervention showed no clear difference in symptomatic VTE (moderate certainty).
1 finding from 1 review