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Thromb Res ; 156: 51-53, 2017 Aug.
Article in English | MEDLINE | ID: mdl-28586696

ABSTRACT

INTRODUCTION: Oral anticoagulation therapy (OAT) with coumarins (vitamin K antagonist) is the most used against thromboembolism. Prothrombin time (PT) International Normalized Ratio (INR) monitoring is fundamental to establish coumarins dosage and prevent bleeding complications or thrombotic events. In this contest, the method and apparatus used for providing the INR measurements are crucial. Several studies have been published regarding the precision and accuracy of mobile coagulometers with different conclusions. No studies have been published regarding the new XPrecia Stride Mobile Coagulometer (Siemens). The aim of this work is to analyze precision and accuracy of the new XPrecia Stride mobile coagulometer to provide recommendations for clinical use and quality control. MATERIALS AND METHODS: A total of 163 patients (mean age=77.4years old) under Warfarin OAT for whom the INR was assessed by both the traditional cs 2100i Sysmex and the new Xprecia Stride Mobile Coagulometer were included in this pilot study. RESULTS AND CONCLUSIONS: The precision of the new mobile coagulometer resulted very good (CV<3%). The analytical accuracy was also within the acceptable ranges of reliability (Lin's concordance=0.962). Finally, the clinical accuracy was also acceptable (deviation>15% from the true value in 20% of cases). Considering the overall results obtained by the new Xprecia Stride in comparison to that ones obtained from the other commercial devices, we can conclude that the new coagulometer is enough reliable for clinical settings. However, a larger trial to confirm these data is needed.


Subject(s)
Blood Coagulation Tests/instrumentation , Aged , Female , Humans , Male , Pilot Projects , Reproducibility of Results
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