{"id":6027,"date":"2025-09-08T13:29:51","date_gmt":"2025-09-08T11:29:51","guid":{"rendered":"https:\/\/rythmologie.fr\/index\/?p=6027"},"modified":"2025-09-08T13:29:51","modified_gmt":"2025-09-08T11:29:51","slug":"fibrillation-atriale-subclinique-pas-de-benefice-net-de-lanticoagulation","status":"publish","type":"post","link":"https:\/\/rythmologie.fr\/index\/fibrillation-atriale-subclinique-pas-de-benefice-net-de-lanticoagulation\/","title":{"rendered":" Fibrillation atriale subclinique : pas de ..."},"content":{"rendered":"<h1>Fibrillation atriale subclinique : pas de b\u00e9n\u00e9fice net de l\u2019anticoagulation<\/h1>\n<p><em>NOAH-AFNET 6 &#8211; Effects of anticoagulation or placebo in patients with device-detected atrial fibrillation and multiple stroke risk factors: A win ratio and win odds analysis of the NOAH-AFNET 6 trial \u2013 Presented by Nina Becher<\/em><\/p>\n<p><strong>Messages cl\u00e9s <\/strong><\/p>\n<ul>\n<li>Chez les patients avec FA d\u00e9tect\u00e9e par dispositif et facteurs de risque d\u2019AVC, l\u2019\u00e9doxaban n\u2019a pas r\u00e9duit significativement les \u00e9v\u00e9nements thromboemboliques.<\/li>\n<li>L\u2019anticoagulation a augment\u00e9 les h\u00e9morragies majeures, sans b\u00e9n\u00e9fice clinique net.<\/li>\n<li>La d\u00e9cision d\u2019anticoaguler doit \u00eatre individualis\u00e9e.<\/li>\n<\/ul>\n<p><strong>Introduction<\/strong><\/p>\n<p>La FA subclinique d\u00e9tect\u00e9e par dispositif expose \u00e0 un risque d\u2019AVC plus faible que la FA clinique. Reste la question : faut-il anticoaguler ces patients, au prix d\u2019un risque accru de saignement ? NOAH-AFNET 6 a compar\u00e9 \u00e9doxaban versus placebo pour \u00e9clairer ce dilemme.<\/p>\n<p><strong>M\u00e9thodologie et r\u00e9sultats<\/strong><\/p>\n<p>Essai randomis\u00e9 en double aveugle, 2 536 patients (\u00e2ge moyen 77 ans, CHA\u2082DS\u2082-VA m\u00e9dian 3). Crit\u00e8re principal : d\u00e9c\u00e8s CV, AVC ou embolie syst\u00e9mique.<br \/>\nR\u00e9sultat : pas de r\u00e9duction significative des \u00e9v\u00e9nements sous \u00e9doxaban, mais plus d\u2019h\u00e9morragies majeures (2,1% vs 1,0%\/an). Analyses suppl\u00e9mentaires : Compte tenu de la gravit\u00e9 in\u00e9gale des \u00e9v\u00e9nements du crit\u00e8re principal (un AVC ou un d\u00e9c\u00e8s ayant un impact plus lourd qu\u2019une complication h\u00e9morragique), les chercheurs ont r\u00e9alis\u00e9 une analyse dite de \u00ab\u202fwin ratio\u202f\u00bb. Cette m\u00e9thode statistique classe les issues cliniques par ordre d\u2019importance clinique pour \u00e9valuer le b\u00e9n\u00e9fice net du traitement de fa\u00e7on nuanc\u00e9e.<\/p>\n<p>Dans NOAH-AFNET 6, les \u00e9v\u00e9nements ont \u00e9t\u00e9 hi\u00e9rarchis\u00e9s ainsi : d\u00e9c\u00e8s (toute cause), puis AVC, puis embolie syst\u00e9mique\/infarctus du myocarde\/embolie pulmonaire, puis enfin h\u00e9morragie majeure. Le calcul du win ratio et des win odds n\u2019a montr\u00e9 aucun avantage global en faveur de l\u2019anticoagulation par \u00e9doxaban comparativement \u00e0 l\u2019absence de traitement. En d\u2019autres termes, m\u00eame en tenant compte de la s\u00e9v\u00e9rit\u00e9 hi\u00e9rarchique des complications, l\u2019anticoagulation syst\u00e9matique ne procure pas de b\u00e9n\u00e9fice clinique net dans cette population de FA subclinique.<\/p>\n<p>La plupart des patients n\u2019ont pr\u00e9sent\u00e9 aucun \u00e9v\u00e9nement pendant le suivi, et toute d\u00e9cision th\u00e9rapeutique doit donc peser le modeste gain potentiel en pr\u00e9vention d\u2019AVC face au risque accru de saignement.<\/p>\n<p><strong>Conclusion<\/strong><\/p>\n<p>La majorit\u00e9 des patients est rest\u00e9e sans \u00e9v\u00e9nement. L\u2019\u00e9doxaban n\u2019a pas apport\u00e9 de b\u00e9n\u00e9fice net et a accru le risque h\u00e9morragique. L\u2019anticoagulation en cas de FA subclinique doit donc \u00eatre discut\u00e9e au cas par cas, selon le profil individuel de risque et les pr\u00e9f\u00e9rences du patient.<\/p>\n<p style=\"text-align: right;\"><em>Auteur : Pr\u00a0 Eloi MARIJON, Paris<\/em><\/p>\n<p><strong>Visuels cl\u00e9s<\/strong><\/p>\n<p style=\"text-align: left;\"><strong><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6028 size-full\" src=\"https:\/\/rythmologie.fr\/index\/wp-content\/uploads\/2025\/09\/NOAH-AFNET-6-2.jpg\" alt=\"\" width=\"747\" height=\"460\" srcset=\"https:\/\/rythmologie.fr\/index\/wp-content\/uploads\/2025\/09\/NOAH-AFNET-6-2.jpg 747w, https:\/\/rythmologie.fr\/index\/wp-content\/uploads\/2025\/09\/NOAH-AFNET-6-2-300x185.jpg 300w\" sizes=\"auto, (max-width: 747px) 100vw, 747px\" \/><\/strong><\/p>\n<p style=\"text-align: left;\"><strong>R\u00e9f\u00e9rences bibliographiques<\/strong><\/p>\n<p>Becher N, K\u00f6llner G, Bertaglia E, Blomstrom-Lundqvist C, Brandes A, Beuger V, Calvert M, Camm AJ, Cabanelas N, Chlouverakis G, Dan GA, Dichtl W, Diener HC, Fierenz A, Goette A, de Groot JR, Kennes LN, Lip GYH, Lubinski A, Marijon E, Merkely B, Mont L, Rajappan K, Rohrer U, Sarkozy A, Schotten U, Sehner S, Simantirakis E, Toennis T, Vardas P, Velchev V, Wichterle D, Zapf A, Kirchhof P. Effects of anticoagulation in patients with device-detected atrial fibrillation and multiple stroke risk factors: a win ratio analysis of the NOAH-AFNET 6 trial. Eur Heart J Qual Care Clin Outcomes. 2025 Sep 1:qcaf087.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fibrillation atriale subclinique : pas de b\u00e9n\u00e9fice net de l\u2019anticoagulation NOAH-AFNET 6 &#8211; Effects of anticoagulation or placebo in patients with device-detected atrial fibrillation and multiple stroke risk factors: A win ratio and win odds analysis of the NOAH-AFNET 6 trial \u2013 Presented by Nina Becher Messages cl\u00e9s Chez les patients avec FA d\u00e9tect\u00e9e par&hellip;<\/p>\n","protected":false},"author":2,"featured_media":6029,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[51,61,22],"tags":[],"class_list":["post-6027","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-congres","category-esc-2025","category-articles","category-51","category-61","category-22","description-off"],"_links":{"self":[{"href":"https:\/\/rythmologie.fr\/index\/wp-json\/wp\/v2\/posts\/6027","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rythmologie.fr\/index\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rythmologie.fr\/index\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rythmologie.fr\/index\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rythmologie.fr\/index\/wp-json\/wp\/v2\/comments?post=6027"}],"version-history":[{"count":1,"href":"https:\/\/rythmologie.fr\/index\/wp-json\/wp\/v2\/posts\/6027\/revisions"}],"predecessor-version":[{"id":6030,"href":"https:\/\/rythmologie.fr\/index\/wp-json\/wp\/v2\/posts\/6027\/revisions\/6030"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rythmologie.fr\/index\/wp-json\/wp\/v2\/media\/6029"}],"wp:attachment":[{"href":"https:\/\/rythmologie.fr\/index\/wp-json\/wp\/v2\/media?parent=6027"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rythmologie.fr\/index\/wp-json\/wp\/v2\/categories?post=6027"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rythmologie.fr\/index\/wp-json\/wp\/v2\/tags?post=6027"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}