… The most recognized way to measure the therapeutic effectiveness of VKA over time is to
measure the percentage of time in the therapeutic range (TTR). TTR has been shown to …

… therapeutic range (percent time in therapeutic range, TTR). The correlation between TTR and
the occurrence of complications during warfarin therapy … , whereas effectiveness appears …

… of the optimal therapeutic range for prothrombin time control for … effectively and more safely
by using a therapeutic range, … to a rabbit brain thromboplastin ratio of 1.2-1.3 times control. …

… Oral anticoagulation is highly effective in preventing stroke … percentage of the time in
therapeutic range of international … (with good average time in therapeutic range) could guide …

… (TTR) of international normalized ratio (INR) of 2.0 to 3.0 is important for the safety and
effectiveness of warfarin anticoagulation. There are few data on TTR among patients with atrial …

… At that time, a recommendation was made that the intensity of warfarin … therapy, we have
made a number of changes. The first is to report our recommendations for therapeutic ranges of …

… Progress has been made in the control of oral anticoagulant therapy because the importance
of reporting the prothrombin time (PT) results as an international normalized ratio (INR) is …

… Background— Oral anticoagulation (OAC) therapy is effective in atrial … time in therapeutic
range (TTR) between centers and between countries affect the outcomes of OAC therapy…

… The percentage of time during which the patients have the INR within the target values (ie
Time in Therapeutic Range [TTR]) is a measure of anticoagulation quality with Vitamin K …

… of oral anticoagulant therapy because the importance of reporting the prothrombin time (PT) …
on oral anticoagulant therapy, recommendations for therapeutic ranges are reported as INR …