Anticoagulation in sub-Saharan Africa: Are Direct Oral Anticoagulants
the answer? A review of lessons learnt from warfarin
Abstract
Warfarin has existed for more than seven decades and has been the
anticoagulant of choice for many thromboembolic disorders. The recent
introduction of direct acting oral anticoagulants (DOACs) has however
caused a shift in preference by healthcare professionals all over the
world. DOACs have been found to be at least as effective as warfarin in
prevention of stroke in patients with atrial fibrillation and in
treatment of venous thromboembolism. In sub-Saharan Africa, however, the
widespread use of DOACs has been hampered mainly by their higher
acquisition costs. As the drugs come off patent, their use in
sub-Saharan Africa is likely to increase. However, very few trials have
been conducted in African settings, and safety concerns will need to be
addressed with further study before widespread adoption into clinical
practice.