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Theses

Risque hémoragique sous anticoagulants : Vers une prise en charge personnalisée

Abstract : Introduction. Given many risk factors that may influence the risk of hemorrhage underanticoagulant therapy, the concept of personalized medicine could have a favorableimpact in the overall management of these patients.Hypothesis and objective. The hypothesis of this thesis is that the use and analyze of "reallife" registries could allow to define hemorrhagic "profiles" allowing a personalizedmanagement of the patients.Material and method. This thesis work has used two real life registries, the RIETE registry(international, multicentric and prospective register) and RATED (monocentric register).Results. We showed the importance of biological database in the analysis of hemorrhagicevents under anticoagulants with a higher loss of coagulation factors in gastrointestinalbleeding compared with intracranial bleeding under AVK. Conversely, this bleeding risk istwo times lower in case of factor V Leiden mutation. Thanks to the RIETE registry, wewere interested in abnormal uterine bleeding under anticoagulant therapy (few studies inthe literature) with major uterine bleeding only for 0.17% of women. Then, we showed thatfragile patients (CrCl ≤50 mL / min, age ≥75 years or body weight ≤50 kg) have a 2-foldhigher risk for major bleeding. Finally, in order to show the complementarity between datafrom real life registries and randomized trial, we assessed patients normally excluded fromthese randomized trials and also showed a 4-fold higher bleeding risk in these excludedpatients.Conclusion. This thesis work allowed us to demonstrate the interest of working not only onoverall hemorrhages but on each type of hemorrhage separately, with a particular interestto create real life prospective registries with the implementation of bio-bank allowing amore personalized analysis of the intake of patients.
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Farès Moustafa. Risque hémoragique sous anticoagulants : Vers une prise en charge personnalisée. Médecine humaine et pathologie. Université de Lyon, 2017. Français. ⟨NNT : 2017LYSES049⟩. ⟨tel-02370980⟩

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