The individual approach to management of patients with atrial fibrillation and its influence on patient adherence to anticoagulant therapy

Abstract

Abstract Background The key points in the treatment of patients with atrial fibrillation (AF) with the ABC (Atrial Fibrillation Better Care) pathway are the prevention of stroke and increasing patient adherence to therapy. The basis for increasing adherence to therapy is regular communication between medical staff and the patients. Purpose To assess the effect of telephone contact (TC) frequency on patient adherence to anticoagulant therapy (ACT). Methods A prospective, non-interventional observational study was carried out, during which 84 patients with non-valvular AF were observed remotely after being discharged from the hospital. Patient education was provided in the hospital, which included an explanation of the importance of ACT. The observation period was 12 months. All enrolled patients were 18 years of age or older; AF was documented before enrolment on the basis of objective electrocardiographic evaluation; all patients had indications for taking anticoagulants (AC) for stroke prevention. Adherence to therapy was assessed using the Morisky-Green test. Results The patients were randomized into 2 groups: group 1 – TC monthly, group 2 – TC every 6 months. In the first group, 85.7% of patients received the non–vitamin K antagonist oral anticoagulants (NOAC), and 14.3% received warfarin; in the 2nd group, 92.9% of patients received NOAC, and 7.1% received warfarin. The mean score of the adherence to therapy according to the Morisky-Green test was initially 3.3±0.8 in group 1, and 3.3±0.7 in group 2, p=0.78. After 12 months: in group 1, 14.6% of patients refused to take AC; and in group 2, 25.0% did the same. The mean value score of the adherence to therapy in group 1 underwent a statistically insignificant change over time (from 3.3±0.8 to 3.1±1.5, p=0.48). In group 2, after 12 months, the mean score of adherence to therapy saw a significant decrease from 3.3±0.7 to 2.7±1.6, p=0.03. Both in group 1 and in group 2, the decrease in the mean score of adherence to therapy occurred mainly due to patients with an initially insufficient level of adherence. Conclusions The results of our study confirm the need for individual strategy for managing patients through the ABC pathway. In most cases, face-to-face or telephone contact with medical staff once every six months is sufficient for patients who are initially adherent to therapy, after receiving an introductory briefing. Patients with insufficient level of adherence require more frequent contact. Funding Acknowledgement Type of funding sources: None.