Clinically significant differences between point-of-care analysers and a standard analyser for monitoring the International Normalized Ratio in oral anticoagulant therapy: A multi-instrument evaluation in a hospital outpatient setting

Blood Coagulation and Fibrinolysis

Volumn 18, Issue 3, 2007, Pages 287-292

  Moore, Gary W ^a   Henley, Alexis ^a   Cotton, Shawn S ^a   Tugnait, Sanjiv ^a   Rangarajan, Savita ^a  

^a ST THOMAS HOSPITAL   (United Kingdom)

Author keywords

International Normalized Ratio; Oral anticoagulation; Point of care test

Indexed keywords

ANTICOAGULANT AGENT; RECOMBINANT THROMBOPLASTIN;

ANTICOAGULANT THERAPY; ARTICLE; AUTOANALYZER; CONTROLLED STUDY; CORRELATION ANALYSIS; HUMAN; INTERMETHOD COMPARISON; INTERNATIONAL NORMALIZED RATIO; LABORATORY TEST; MAJOR CLINICAL STUDY; MEDICAL DECISION MAKING; OUTPATIENT CARE; PATIENT MONITORING; POINT OF CARE TESTING; PRIORITY JOURNAL; STANDARD;

ANTICOAGULANTS; BIAS (EPIDEMIOLOGY); BLOOD COAGULATION TESTS; DRUG MONITORING; HUMANS; INTERNATIONAL NORMALIZED RATIO; OUTPATIENTS; POINT-OF-CARE SYSTEMS; REPRODUCIBILITY OF RESULTS;

EID: 34247123272     PISSN: 09575235     EISSN: None     Source Type: Journal    
DOI: 10.1097/MBC.0b013e328040c105     Document Type: Article

References (19)

1. Tripodi A, Chantarangkul V, Mannucci P. Near-patient testing devices to monitor oral anticoagulant therapy. Br J Haematol 2001; 113:847-852.
2. Murray ET, Fitzmaurice DA, McCahon D. Point of care testing for INR monitoring: where are we now? Br J Haematol 2004; 127:373-378.
3. Tay MH, Tien SL, Chua TSJ, Sim LL, Koh TH. An evaluation of point-of-care instrument for monitoring anticoagulation level in adult cardiac patients. Singapore Med J 2002; 43:557-562.
4. Vacas M, Lafuente PJ, Unanue I, Iriarte JA. Comparative study of two portable systems for oral anticoagulant monitoring. Hematol J 2005; 5:35-38.
5. Gosselin R, Owings JT, White RH, Hutchinson R, Branch J, Mahackian K, et al. A comparison of point-of-care instruments designed for monitoring oral anticoagulation with standard laboratory methods. Thromb Haemost 2000; 83:698-703.
6. Poller L, Keown M, Chauhan N, van den Besselaar AMHP, Tripodi A, Shiach C, et al. Reliability of international normalised ratios from two point of care test systems: comparison with conventional methods. BMJ 2003; 327:30-32.
7. Shiach CR, Campbell B, Poller L, Keown M, Chauhan N. Reliability of point-of-care prothrombin time testing in a community clinic: a randomised crossover comparison with hospital laboratory testing. Br J Haematol 2002; 119:370-375.
8. Lizotte A, Quessy I, Vanier MC, Martineau J, Caron S, Darveau M, et al. Reliability, validity and ease of use of a portable point-of-care coagulation device in a pharmacist-managed anticoagulation clinic. J Thromb Thrombolysis 2002; 14:247-254.
9. Andrew M, Ansell JL, Becker DM, Becker RC, Triplett DA. Point-of-care prothrombin time measurement for professional and patient self-testing use. Am J Clin Pathol 2001; 115:288-296.
10. Gardiner C, Williams K, Mackie IJ, Machin SJ, Cohen H. Patient self-testing is a reliable and acceptable alternative to laboratory INR monitoring. Br J Haematol 2004; 128:242-247.
11. Boehlen F, Reber G, de Moerloose P. Agreement of a new whole-blood PT/ INR test using capillary samples with plasma INR determinations. Thromb Res 2005; 115:131-134.
12. Dorfman DM, Goonan EM, Boutilier MK, Jarolim P, Tanasijevica M, Goldhaber SZ. Point-of-care (POC) versus central laboratory instrumentation for monitoring oral anticoagulation. Vasc Med 2005; 10:23-27.
13. Lam DWL, Chui PT. A prospective evaluation of a microcoagulation analyser. Hong Kong College Anaesthesiol Bull 2005; 14:9-12.
14. van den Besselaar AM, Hoekstra MM. Long term stability and reproducibility of CoaguChek test strips. Thromb Haemost 2005; 93:1189-1192.
15. Taborski U, Braun SL, Voller H. Analytical performance of the new coagulation monitoring system INRatio for the determination of INR compared with the coagulation monitor CoaguChek S and an established laboratory method. J Thromb Thrombolysis 2004; 18:103-107.
16. Oberhardt BJ, Dermott SC, Taylor M, Alkadi ZY, Abruzzini AF, Gresalfi NJ. Dry reagent technology for rapid, convenient measurements of blood coagulation and fibrinolysis. Clin Chem 1991; 37:520-526.
17. Hirsch J, Poller L. The international normalized ratio: a guide to understanding and correcting its problems. Ann Intern Med 1994; 120:552-558.
18. Kitchen S, Walker ID, Woods TA, Preston FE. Thromboplastin related differences in the determination of international normalised ratio: a cause for concern? Steering Committee of the UK National External Quality Assessment Scheme in Blood Coagulation. Thromb Haemost 1994; 72:426-429.
19. Schmitz LL, Olson SL, Shapiro RS, McCormick SR, Kubic VL. Failure to generate comparable International Normalized Ratio values using five different thromboplastin reagents in parallel studies of patients receiving warfarin. Clin Appl Thromb Haemost 1995; 1:142-150.