Accuracy of a portable international normalization ratio monitor in outpatients receiving long-term oral anticoagulant therapy: Comparison with a laboratory reference standard using clinically relevant criteria for agreement

Thrombosis Research

Volumn 92, Issue 1, 1998, Pages 11-17

  Douketis, James D ^a   Lane, Allan ^b   Milne, Janet ^a   Ginsberg, Jeffrey S ^c  

^a ST JOSEPH S HOSPITAL   (Canada)

^b Boehringer Mannheim Canada   (Canada)

^c NONE

Author keywords

Capillary blood; Decentralized testing; Oral anticoagulants; Prothrombin time

Indexed keywords

ANTICOAGULANT AGENT; WARFARIN;

ACCURACY; ADULT; AGED; ANTICOAGULATION; ARTICLE; CLINICAL TRIAL; CONTROLLED STUDY; FEMALE; HEART ATRIUM FIBRILLATION; HEART VALVE PROSTHESIS; HUMAN; LABORATORY TEST; LONG TERM CARE; MAJOR CLINICAL STUDY; MALE; MONITOR; ORAL DRUG ADMINISTRATION; PRIORITY JOURNAL; STANDARD; THROMBOEMBOLISM;

ADMINISTRATION, ORAL; ADOLESCENT; ADULT; AGED; AGED, 80 AND OVER; ANTICOAGULANTS; BLOOD COAGULATION TESTS; CARDIOVASCULAR DISEASES; EVALUATION STUDIES; FEMALE; HEMORRHAGE; HUMANS; MALE; MIDDLE AGED; REFERENCE STANDARDS; THROMBOEMBOLISM; WARFARIN;

EID: 0032189265     PISSN: 00493848     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0049-3848(98)00098-X     Document Type: Article

References (28)

1. Laupacis A, Albers GW, Dalen JE, Dunn MI, Feinberg W, Jacobson AK. Antithrombotic therapy in atrial fibrillation. Chest 1995;108: 352S-9S.
2. Hyers TM, Hull RD, Weg JG. Antithrombotic therapy for venous thromboembolism. Chest 1995;108:335S-51S.
3. Levine HJ, Pauker SG, Eckman MH. Antithrombotic therapy in valvular heart disease. Chest 108;360S-70S.
4. Aspect Research Group. Effect of long-term oral anticoagulant treatment on mortality and cardiovascular morbidity after myocardial infarction Lancet 1994;343:499-503.
5. Stein PD, Alpert JS, Copeland JG, Dalen JE, Goldman S, Turpie AGG. Antithrombotic therapy in patients with mec hanical and biological prosthetic heart valves. Chest 1995;108:371S-9S.
6. Ansell JE. Oral anticoagulant therapy - 50 years later. Arch Intern Med 1993;153:586-96.
7. Wells PS, Holbrook AM, Crowther NR. Interactions of warfarin with drugs and food. Ann Intern Med 1994;121:676-83.
8. Fihn SD, McDonell M, Martin D, Henikoff J, Vermes D, Kent D, White RH for the Warfarin Optimized Outpatient Follow-up Study Group. Risk factors for complications of chronic anticoagulation. A multicentre study. Ann Intern Med 1993;118:511-20.
9. Hylek EM, Singer DE. Risk factors for intracranial hemorrhage in outpatients taking warfarin. Ann Intern Med 1994;120:897-902.
10. Hylek EM, Skates SJ, Sheehan MA, Singer DE. An analysis of the lowest effective intensity of prophylactic anti coagulation for patients with nonrheumatic atrial fibrillation. N Engl J Med 1996;335:540-6.
11. Coumadin Aspirin Reinfarction Study (CARS) Investigators. Randomized double-blind trial of fixed low-dose warfarin with aspirin after myocardial infarction. Lancet 1997;350:389-96.
12. Cannegieter SC, Rosendaal FR, Wintzen AR, Van Der Meer FJM, Vandenbroucke JP, Briet E. Optimal oral anti coagulant therapy in patients with mechanical heart valves. N Engl J Med 1995;333:11-7.
13. White RH, Decker DM, Gunther-Maher MG. Outpatient use of a portable international normalized ratio/prothrombin time monitor. South Med J 1994;87:206-10.
14. White RH, McCurdy SA, von Marensdorff H, Woodruff Jr DE, Leftgoff L. Home prothrombin time monitoring after the initiation of warfarin therapy. A randomized, prospective study. Ann Intern Med 1989;111:730-7.
15. Ansell J, Holden A, Knapic N. Patient self-management of oral anticoagulant guided by capillary (fingerstick) whole blood prothrombin times. Arch Intern Med 1989;149:2509-11.
16. Ansell JE, Hamke AK, Holden A, Knapic N. Cost-effectiveness of monitoring warfarin therapy using standard versus capillary prothrombin times. Am J Clin Path 1989;91:587-9.
17. Lucas FV, Duncan A, Jay R, Coleman R, Craft P, Chan B, Winfrey L, Mungall DR, Hirsh J. A novel whole blood capillary technic for measuring the prothrombin time. Am J Clin Path 1989;88:442-6.
18. Jennings I, Luddington RJ, Baglin T. Evaluation of the Ciba Corning Biotrack 512 coagulation monitor for the control of oral anticoagulation. J Clin Path 1991;44: 950-3.
19. Tripoldi A, Arbini AA, Chanarangkul V, Bettega D, Mannucci PM. Are capillary whole blood coagulation monitors suitable for the control of oral anticoagulant treatment by the international normalization ratio? Thromb Haemost 1993;70:921-9.
20. McCurdy SA, White RH. Accuracy and precision of a portable anticoagulation monitor in a clinical setting. Arch Intern Med 1992;152: 589-92.
21. van den Besselaar AMHP, Breddin K, Lutze G, Parker-Williams J, Taborski U, Vogel G, Tritschler W, Zerback R, Leinberger R. Multicentre evaluation of a new capillary blood prothrombin time monitoring system. Blood Coag Fibrinol 1997;6:726-32.
22. Kirkwood TB. Calibration of reference thromboplastins and standardization of the prothrombin time ratio. Thromb Haemost 1983; 48:238-44.
23. World Health Organization. Recommended methodology for using WHO International Reference Preparations for thromboplastins. Available from WHO, 1211 Geneva 27, Switzerland.
24. Bland JM, Altman DG. Statistical methods for assessing agreement between two methods of clinical measurement. Lancet 1986;1:307-10.
25. Anderson DR, Harrison L, Hirsh J. Evaluation of a portable prothrombin time monitor for home use by patients who require long-term oral anticoagulant therapy. Arch Intern Med 1993;153:1441-7.
26. Passing H, Blalock W. A new biometric procedure for testing the equality of measurements from two different analytical methods. Application of linear regression procedures for method comparison studies in clinical chemistry, part I. J Clin Chem Clin Biochem 1983; 21:709-20.
27. Kaatz SS, White RH, Hill J, Mascha E, Humphries JE, Becker DM. Accuracy of laboratory and portable monitor International Normalization Ratio determinations comparison with a criterion standard. Arch Intern Med 1995;155:1861-7.
28. The European Atrial Fibrillation Trial Study Group. Optimal oral anticoagulant therapy in patients with nonrheumatic atrial fibrillation and recent cerebral ischemia. N Engl J Med 1995;333:5-10.