Abstract
Non-vitamin K oral anticoagulants(NOAC) negate complex patient management issues, such as frequent blood sampling, diet restriction, and drug interactions, that had to be dealt with during the warfarinonly era. However, there is no definite tool tomonitor the anticoagulant effects of NOACs, although some patients suffer from bleeding complications related to exceedingly high blood concentrations of NOACs. [1, 2] Routine tests, such as prothrombin time-international normalized ratio (PT-INR) and activated partial thromboplastin time (APTT), can be problematic formonitoring the anticoagulant effects of all NOACs because each individual NOAC has a different characteristic chemical structure and different pharmacokinetic profile (e.g., plasma half-life and tissue penetration rate) [3]. Recently, the Total Thrombus-formation Analysis System (T-TASTM) [4,5], a microchip-based flow chamber system capable of evaluating whole blood thrombogenicity, was developed as an easy-to-use system for quantitative analysis of thrombus formation (Fig. 1A,B). In the present study, we sought to examine whether the T-TASTM was useful for the quantitative analysis of thrombogenicity in patients treated with the NOAC edoxaban (Fig. 1C, D). We recruited 20 consecutive patients (male: n = 8 [40%] and female: n=12 [60%], average age: 75.2±8.7 years)whowere scheduled
Published Version
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