Vitamin K antagonist use: evidence of the difficulty of achieving and maintaining target INR range and subsequent consequences

Table 4 SAMe-TT2R2 scoring system and implications

Criteria	One point	Two points	Points
Sex	Female gender		1
Age	Age < 60 years old		1
Medical history	Two or more co-morbidities: • Hypertension • Diabetes • Coronary disease • Peripheral artery disease • Heart failure • Prior stroke • Pulmonary disease • Renal disease • Liver disease		1
Treatment	Treatment with amiodarone		1
Tobacco		Tobacco use in the past 2 years	2
Race		Non-Caucasian race	2
Maximum points			8

The SAMe-TT2R2 score allows an initial patient assessment to discern who is unlikely to achieve a TTR ≥65 %. Patients that score ≥ 2 have reduces odds of achieving TTR ≥65 %. It does not include the risk associated with instability after initiation, only the ability to achieve longer term control [17]

ISSN: 1477-9560