Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

780 questions · 834 findings · 76 reviews

No studies found 187 · 22.4%GRADE not reported 164 · 19.7%Very low 144 · 17.3%Low 172 · 20.6%Moderate 105 · 12.6%High 62 · 7.4%

Vitamin K antagonists vs low molecular weight heparin

Pulmonary embolism · ambulatory patients with multiple myeloma receiving immunomodulatory agents

It is very uncertain whether vitamin K antagonist (VKA) changes pulmonary embolism compared with low molecular weight heparin (LMWH) (very low certainty).

2 findings from 1 review

Vitamin K antagonists vs low molecular weight heparin

Major bleeding · ambulatory patients with multiple myeloma receiving immunomodulatory agents

The review found no eligible studies for this question.

2 findings from 1 review

Vitamin K antagonists vs low molecular weight heparin

Minor bleeding · ambulatory patients with multiple myeloma receiving immunomodulatory agents

It is very uncertain whether vitamin K antagonist (VKA) changes minor bleeding compared with low molecular weight heparin (LMWH) (very low certainty).

1 finding from 1 review

Vitamin K antagonists vs no VKA

Symptomatic catheter‐related thrombosis (up to 3 months) · people with cancer with thrombosis prophylaxis and central venous catheters

Vitamin K antagonist (VKA) showed no clear difference in symptomatic catheter‐related thrombosis (up to 3 months) compared with no VKA (low certainty).

1 finding from 1 review

Vitamin K antagonists vs no VKA

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 vitamin K antagonist (VKA) changes symptomatic catheter‐related thrombosis measured as asymptomatic… compared with no VKA (very low certainty).

1 finding from 1 review

Vitamin K antagonists vs no VKA

Antibiotic versus heparin only lock/flush solution: catheter‐related infections · people with cancer with thrombosis prophylaxis and central venous catheters

Vitamin K antagonist (VKA) showed no clear difference in catheter‐related infection (3 months) compared with no VKA (low certainty).

1 finding from 1 review