IMPROVE Bleeding Risk Score

IMPROVE Bleeding Risk Overview

The IMPROVE Bleeding Risk Score is an essential clinical tool used to predict the risk of major bleeding in acutely ill, hospitalized medical patients. It is a critical counterpart to venous thromboembolism (VTE) risk assessment.

The Prophylaxis Dilemma

Hospitalized medical patients (e.g., those admitted for severe pneumonia, heart failure, or infections) are at high risk for developing blood clots (DVT/PE) and usually require chemical prophylaxis (blood thinners like heparin). However, these medications carry a risk of causing severe internal bleeding. The IMPROVE score helps clinicians identify patients whose baseline bleeding risk is so high that chemical prophylaxis might cause more harm than good.

Key Risk Factors Analyzed

The score assigns points based on clinical and laboratory variables present at admission:

• Active gastroduodenal ulcer (highest weight)
• Prior bleeding history
• Low platelet count (<50,000)
• Advanced age (>85 years)
• Hepatic impairment or severe renal failure (GFR <30)
• Current ICU admission
• Central venous catheter placement
• Rheumatic disease or active cancer