Abstract
Prevalence of atrial fibrillation (AF) is continuously increasing. Stroke in AF patients is the most unfavorable complication of arrhythmia, clinical course being severer, neurological deficit pronounced, and mortality higher compared to stroke patients without AF. Oral anticoagulation (OAC) results in significant reduction of stroke and systemic embolism but at the same time is compromised by haemorrhagic complications. High adherence to treatment is essential for effectiveness and safety of OAC. Nonetheless, poor adherence to treatment in case of chronic diseases requiring drug regimen remains unresolved. Social, economic and demographic factors, patient’s psychological markers, inertia of the healthcare system, formalism in the implementation of recommendations in routine clinical practice, violation of the continuity between inpatient and outpatient care, limited resources and other factors lead to low adherence among patients with AF. Refusal of OAC, intermittent treatment, delayed medication with OAC, failure to follow recommendations for the control of modifiable risk factors associated with anticoagulant therapy, are transformed into a high level of cardiovascular and cerebrovascular events in patients with AF. This article presents an analysis of three clinical cases of patients with complicated AF, discusses treatment from the standpoint of evidence-based medicine, the role of low adherence in the development of complications, and obstacles to increasing adherence.
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