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Chronic thrombosis (>30 days after diagnosis of VTE)
| Platelet count (109/L) | Platelet transfusiona | Anticoagulant dosage |
|---|---|---|
| Platelets ≥50 | No | Dalteparin 150 U/kg SC once daily/full-dose LMWH |
| Platelets 20–50 | No | Dalteparin 75 U/kg SC once daily/half-dose LMWH |
| Platelets <20 | No | No anticoagulation: do not insert filter |
Note:
Platelet transfusion not indicated for anticoagulant dose.
Abbreviations: VTE, venous thromboembolism; SC, subcutaneously; LMWH, low-molecular-weight heparin.
