Anaemia as an independent key risk factor for major haemorrhage in patients treated with vitamin K antagonists: Results of the SCORE prospective cohort

Autor: Yoann Gaboreau, Pierre Albaladejo, Nora Zenati, Gilles Pernod, Jean Luc Bosson, Cynthia Brousseau Provencher
Přispěvatelé: Université Grenoble Alpes - UFR Médecine (UGA UFRM), Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Techniques pour l'Evaluation et la Modélisation des Actions de la Santé (TIMC-IMAG-ThEMAS), Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525 (TIMC-IMAG), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Service d'anesthésie-réanimation, Université Joseph Fourier - Grenoble 1 (UJF)-CHU Grenoble-Hôpital Michallon, CHU Grenoble, GIRC Thrombose
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Thrombosis Research
Thrombosis Research, Elsevier, 2017, 151, pp.83-88
ISSN: 0049-3848
Popis: Risk scores for the prediction of haemorrhage are poorly predictive of major bleeding. The aim of this study was to refine the estimation of bleeding risk by identifying one or several parameters of prognostic significance among these algorithms.The SCORE study was a prospective, multicentre cohort study conducted in France in 2009-2010. Patients were eligible if they had received vitamin K antagonist (VKA) for any therapeutic indication for at least 3months. The primary outcome was the occurrence of major bleeding at 1-year follow-up.In total, 962 patients were included in this study and evaluated at 1year. The incidence of major bleeding at 1-year follow-up (Kaplan-Meier method) was 2.9% [95% confidence interval (CI) 1.9-4.2]. The rate of major bleeding was 8.2% (95 CI 3.4-16.2) per year in patients classified as high risk by at least four scores. In a multivariate Cox analysis, of the risk factors for the different scores, only anaemia100g/l at inclusion was strongly associated with risk of major bleeding (hazard ratio 6.1, 95% CI 2.7-13.8, P0.0001). Through an induction tree analysis performed to identify a common parameter in the majority of scores, anaemia was found to be the main predictor of correct classification as high risk by at least four scores (55% of patients classified as high risk by at least four scores vs 3.3% in the absence of anaemia).Anaemia with haemoglobin100g/l is the most important predictor of high risk of bleeding in patients treated with VKA.
Databáze: OpenAIRE