Atrial fibrillation (AF) is a common arrhythmia in adults, which increases the risk for stroke (Pistoia et al., 2016). The prevalence of AF in adults is 2%-4%, and the disease is expected to increase in prevalence (Hindricks et al., 2020). It is estimated that in year 2030 about 14-17 million people in Europe will have AF. One important cornerstone in the management of AF is thrombosis prophylaxis with oral anticoagulant therapy (OAC), with vitamin K antagonists (VKA) or non-VKA oral anticoagulants (NOAC). VKAs have for a long time been the only treatment for thromboembolic diseases but nowadays NOAC is an increasingly common treatment alternative (Kirchhof, Benussi, et al., 2016). Both treatments can be complicated because they increase the risk of bleeding, but one difference with warfarin is that it requires frequent blood tests and dosage adjustments (Salmasi et al., 2019).
| INTRODUC TI ONOral anticoagulant treatment reduces stroke and mortality in AF patients, but despite the evidence for OACs to reduce the risk for stroke, some patients stop taking their medications (Hindricks et al., 2020;Kirchhof, Benussi, et al., 2016). Reasons for not taking OAKs are reported to be lack of knowledge about the purpose of the therapy, the risk of bleeding complications or the effort required from the patient to verify or adjust the dose of VKA (Kirchhof,