ToolsCalculators
IMPROVE bleeding risk score
Bleeding risk in acutely ill medical inpatients considered for VTE prophylaxis.
IMPROVE bleeding risk score
Renal function (GFR)
Sex
Age
Active cancer
Rheumatic disease
Central venous catheter
Admission to ICU or CCU
Hepatic failure (INR >1.5)
Platelet count <50 x10^9/L
Bleeding in the 3 months before admission
Active gastroduodenal ulcer
Result0 points
Score <7 indicates lower bleeding risk; pharmacologic VTE prophylaxis is generally favoured if otherwise indicated.
- High-risk threshold
- >=7
When to use
- Weighing bleeding against thrombosis risk when deciding on pharmacologic VTE prophylaxis in medical inpatients.
Formula
Weighted points for renal function, male sex, age band, cancer, rheumatic disease, central line, ICU/CCU, hepatic failure, thrombocytopenia, recent bleeding, and gastroduodenal ulcer. A total >=7 defines high bleeding risk.