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Warfarin 2.0--a computer program for warfarin management. Design and clinical use.

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  • 1Clínica Médica C, Hospital de Clínicas, Montevideo, Uruguay.


Warfarin 2.0 is a computer program that helps physicians optimize treatment of outpatients with warfarin. The main reason for its development was to achieve a good anticoagulation level, avoiding both undertreatment--which causes thromboembolic complications--and overtreatment--which causes hemorrhagic complications. The program was also designed to help educate the anticoagulated patient, standardize warfarin management and audit results of what had been done. The philosophy of continuous quality improvement was applied. Warfarin 2.0 is in clinical operation in the University Hospital, Montevideo, Uruguay, and it has also been used since the end of 1993 in the Favaloro Foundation, Dept. of Hematology, Buenos Aires, Argentina. The results from the first 15 months of use in Montevideo showed an increase in the number of patients being followed (from 91 to 132) and the average number of visits per patient (from one visit every 10.6 weeks to one every 6.5 weeks): The frequency of visits has been in the internationally accepted ranges since the program was implemented. Better anticoagulation levels were achieved after an adjusting period. Unfortunately, the number of undertreated patients is still large, and a thorough analysis of the data is going to be undertaken to continue improving warfarin management.

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