The objective of this study is to evaluate the time in therapeutic range of patients who
self-test their INR compared to patients receiving the usual care. Additionally, we will
evaluate the educational components and corollaries of self-testing.
Two hundred consecutively enrolled adults, having undergone implantation of a mechanical
heart valve, will be randomized to either self-testing or usual care. Those randomized to
the self-testing group will undergo self-testing instruction prior to hospital dismissal.
For three months after hospital discharge, subject will record their INR results obtained by
self-testing or as prescribed by their primary physician. They will then submit the record
of the INR results and complete a survey.
- Patients that received a mechanical valve while in our hospital and are over the age
- patients under the age of 18
- patients that have genetic clotting disorders such as Factor 5.