Spontaneous Intracranial Hemorrhage and Oral Anticoagulation A Retrospective Study
Main Article Content
Keywords
Intracranial hemorrhage, cerebral hemorrhage, Warfarin, antithrombins factor Xa inhibitors
Abstract
Background: Canadian data on intracranial hemorrhage (ICH) associated with oral anticoagulation is limited. Objectives: Primary study outcomes were baseline hematoma volumes and in-hospital mortality in patients with ICH associated with direct oral anticoagulants (DOACs) versus vitamin K antagonists (VKAs). Second-ary outcomes included the use of four-factor prothrombin complex concentrate (4f-PCC).
Methods: Retrospective cohort study of patients with ICH associated with oral anticoagulation in three ter-tiary care hospitals in Montreal, Canada, between 2011 and 2018.
Results: Twenty-nine patients were receiving DOACs and 114 patients were under VKAs. Median baseline hematoma volumes were similar, 14.8 ml [5.7–42.8] in the DOAC group and 15.6 ml [5.9–38.1] in the VKA group (p = 0.91). In-hospital mortality rate was 34.5% in the DOAC group and 48.2% in the VKA group (p = 0.26). Only 17 patients (58.6%) in the DOAC group received 4f-PCC.
Conclusion: Our study did not demonstrate significant differences in outcomes of ICH associated with DOACs versus VKAs. Management approaches were variable.
Résumé
Contexte: Il existe peu de données canadiennes sur l’hémorragie intracrânienne (HIC) associée à la prise d’anticoagulants par voie orale.
Objectifs: Les critères d’évaluation principaux de l’étude sont le volume initial de l’hématome et la mortalité à l’hôpital chez des patients présentant une HIC associée à la prise d’anticoagulants oraux directs (AOD) par rapport à la prise d’antagonistes de la vitamine K (AVK). Les critères d’évaluation secondaires comprennent l’utilisation d’un concentré de complexe prothrombique à quatre facteurs (4f-PCC pour four-factor prothrombin complex concentrate).
Méthodologie: Étude de cohorte rétrospective portant sur des patients présentant une HIC associée à la prise d’anticoagulants oraux dans trois hôpitaux de soins tertiaires de Montréal (Canada) entre 2011 et 2018. Résultats: Au total, 29 patients prenaient des AOD et 114 des AVK. Les volumes médians des hématomes au départ sont semblables, soit de 14,8 ml (de 5,7 à 42,8) dans le groupe des AOD et de 15,6 ml (de 5,9 à 38,1) dans le groupe des AVK (p = 0,91). Le taux de mortalité à l’hôpital est de 34,5 % pour le groupe des AOD et de 48,2 % pour celui des AVK (p = 0,26). Seuls 17 patients (58,6 %) du groupe des AOD ont reçu le 4f-PCC.
Conclusion: Notre étude ne montre aucune différence importante dans les résultats concernant l’HIC associée à la prise d’AOD par rapport à la prise d’AVK. Les méthodes de prise en charge sont variables.
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