Risk of arterial thrombosis in carriers of familial thrombophilia

firming and extending previously published data [7–9]. In conclusion, decision-making for thromboprophylaxis in current clinical practice seems too random in acutely ill medical patients. Our results point out to the need for developing and implementing explicit evidenced-based criteria and to standardize the indications for prevention of venous thromboembolism in these patients, as recently reminded [10]. Because the present heterogeneity and inadequacy of practice is probably large because of the lack of clear, immediately applicable guidelines, the simple score assessed in the present study might represent a promising step toward this necessary standardization of practice.