Comparison of Patient Outcomes Using Different Delivery Models of Anticoagulation Care
| Status: | Active, not recruiting |
|---|---|
| Conditions: | Cardiology |
| Therapuetic Areas: | Cardiology / Vascular Diseases |
| Healthy: | No |
| Age Range: | 18 - Any |
| Updated: | 4/21/2016 |
| Start Date: | August 1999 |
Hypothesis: Does the time spent within the target INR range differ when patients are managed
by AMD or IT models of anticoagulation care?
Experimental Design: The 36-month trial enrolled 192 eligible patients currently receiving
chronic warfarin therapy at the William S. Middleton Memorial VA Hospital. Consenting
patients are enrolled and randomized to 1 of 2 groups: usual clinic care with face-to-face
visits every 4 weeks (AMS model) or clinic visits every 3 months with interim laboratory
visits and telephone follow-up every 4 weeks (IT model). At study conclusion, the amount of
time the INR is within target range will be compared between the two groups. Thromboembolic
and bleeding event rates, patient knowledge, quality of life and healthcare utilization will
also be analyzed.
by AMD or IT models of anticoagulation care?
Experimental Design: The 36-month trial enrolled 192 eligible patients currently receiving
chronic warfarin therapy at the William S. Middleton Memorial VA Hospital. Consenting
patients are enrolled and randomized to 1 of 2 groups: usual clinic care with face-to-face
visits every 4 weeks (AMS model) or clinic visits every 3 months with interim laboratory
visits and telephone follow-up every 4 weeks (IT model). At study conclusion, the amount of
time the INR is within target range will be compared between the two groups. Thromboembolic
and bleeding event rates, patient knowledge, quality of life and healthcare utilization will
also be analyzed.
Inclusion Criteria:
- completion of >3 months of warfarin
- indefinite warfarin therapy
Exclusion Criteria:
- patients who currently receive >25% of INR determinations per year from local labs
- extended absences from VA
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