Related Experiment Video
Updated: Jun 19, 2026

Rapid Point-of-Care Assay of Enoxaparin Anticoagulant Efficacy in Whole Blood
Published on: October 12, 2012
[Advantages of capillary INR monitoring for oral anticoagulation]
M Camp-Wachsmuth1, J-P Humair, F Boehlen
1Service de médecine de premier recours, Département de médecine communautaire, HUG, 1211 Genève 14. maud.camp-wachsmuth@hcuge.ch
Insights
Long-term oral anticoagulation requires careful monitoring. Capillary INR monitoring, whether self-managed or physician-controlled, improves therapeutic range time, reducing risks associated with anticoagulation therapy.
Area of Science:
- Clinical Medicine
- Pharmacology
- Medical Devices
Context:
- Growing number of patients require long-term oral anticoagulation.
- Maintaining the International Normalized Ratio (INR) within the therapeutic range is challenging due to various influencing factors.
- Suboptimal INR levels elevate risks of hemorrhage (too high) or thromboembolism (too low).
Purpose:
- To evaluate the efficacy of capillary INR monitoring in improving time spent within the therapeutic range for patients on oral anticoagulation.
- To compare self-management and self-control models of capillary INR monitoring.
- To assess the benefits of point-of-care capillary INR testing in a medical office setting.
Summary:
- Capillary INR monitoring, utilized in self-management or self-control by patients, enhances the time International Normalized Ratio remains within the desired therapeutic range.
- Point-of-care capillary INR testing at medical offices offers a less invasive and faster alternative to traditional venous blood draws.
- Improved INR monitoring directly addresses the limitations of maintaining anticoagulation efficacy and safety.
Impact:
- Increased time in therapeutic range for oral anticoagulation therapy.
- Reduced risk of bleeding events and thrombotic complications.
- Enhanced patient management through accessible and efficient INR monitoring technologies.
Abstract:
More and more patients are treated with long term oral anticoagulation. The time spent in therapeutic range is often limited since many factors affect INR. Too high or too low INRs increase respectively the hemorrhagic or thromboembolic risks. INR monitoring by a capillary device either in autonomy (self-management) by some selected patients or in relation with the treating physician (self-control), allows increasing the time spent in therapeutic range. Capillary INR monitoring can also be made at the medical office: it is less invasive and provides a quicker answer than a venous INR.
Related Concept Videos
Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
Anticoagulant Drugs: Low-Molecular-Weight Heparins
Venous Thrombosis III: Interprofessional Care
Therapeutic Index
Drug Accumulation During Multiple Dosing: Intermittent IV Infusions
Pre-Procedural Guidelines for Assessing Blood Pressure
