Anticoagulation Therapy with Warfarin: A Reality of Brazilian Public Health that Lacks Structure for Better Control
The increase in longevity in recent decades has led to a progressive increase in the prevalence of atrial fibrillation (AF) worldwide. ,
As a result, anticoagulation therapy has become increasingly indicated in preventing thromboembolic events. The need for continuous use drove the preference for oral anticoagulants, historically represented by antivitamin K (VKA) drugs and, more recently, by new anticoagulants (anti-factor X). Among these, a VKA, warfarin, is the most prominent for its low cost.
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