Purpose: The frequency of pathologies requiring anticoagulant treatment (thromboembolic disease, atrial fibrillation) is particularly high in people above 75. The risk of haemorrhagic complications is also highest in this population of patients.Therefore, the assessment of the risk/benefit ratio of an anticoagulant treatment may overestimate the haemorrhagic risk and lead to the under-using of anticoagulant treatment in such pathologies as atrial fibrillation. CURRENT KNOWLEDGE AND KEY-POINTS: However, the use of "classical" anticoagulant treatments such as non-fractionated heparin, low-molecular-weight heparin, and above all, antivitamin K requires special precautions. Several hemorrhagic risk factors are well known and should be spotted out. Finally, the risk/benefit ratio of an anticoagulant treatment in the elderly patients must rely on a comprehensive geriatric assessment.
Prospects And Projects: In the era of "new anticoagulant treatments", and particularly of per-os antithrombin, it may seem anachronous to issue a statement over the use of "classical anticoagulant treatments", but in the present state of knowledge, the evaluation of these new molecules is not sufficient in the elderly population of patients.
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