{"id":8972,"date":"2025-12-11T12:13:54","date_gmt":"2025-12-11T11:13:54","guid":{"rendered":"https:\/\/fhu-premimpact.org\/?page_id=8972"},"modified":"2026-10-07T16:54:06","modified_gmt":"2026-10-07T14:54:06","slug":"une-fraction-doxygene-initiale-plus-elevee-pour-la-reanimation-des-tres-grands-prematures-nameliore-pas-la-survie-sans-sequelles","status":"publish","type":"page","link":"https:\/\/fhu-premimpact.org\/en\/focus\/une-fraction-doxygene-initiale-plus-elevee-pour-la-reanimation-des-tres-grands-prematures-nameliore-pas-la-survie-sans-sequelles\/","title":{"rendered":"Une fraction d&#8217;oxyg\u00e8ne initiale plus \u00e9lev\u00e9e pour la\u00a0r\u00e9animation des\u00a0tr\u00e8s grands pr\u00e9matur\u00e9s n&#8217;am\u00e9liore pas la\u00a0survie sans s\u00e9quelles"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">WASHINGTON, 11\u00a0d\u00e9cembre 2025 &#8211; L&#8217;oxyg\u00e9noth\u00e9rapie pour la r\u00e9animation des nouveau-n\u00e9s tr\u00e8s grands pr\u00e9matur\u00e9s ciblant une fraction d&#8217;oxyg\u00e8ne inspir\u00e9e (FiO\u2082) initiale de 0,6 n&#8217;affecte pas le risque de d\u00e9c\u00e8s ou de l\u00e9sion c\u00e9r\u00e9brale \u00e0 neuf\u00a0mois par rapport \u00e0 une FiO\u2082 de 0,3, montre un essai randomis\u00e9 international pr\u00e9sent\u00e9 mercredi au congr\u00e8s Hot Topics in Neonatology \u00e0 Washington et publi\u00e9s dans le Journal of the American Medical Association (JAMA).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les recommandations initiales pour commencer la r\u00e9animation chez le nouveau-n\u00e9 avec de l&#8217;air ou une faible FiO\u2082 \u00e9taient essentiellement fond\u00e9es sur des \u00e9tudes sur des b\u00e9b\u00e9s \u00e0 terme en \u00e9tat d&#8217;asphyxie, chez qui l&#8217;utilisation d&#8217;une FiO\u2082 de 1,0 \u00e9tait associ\u00e9e \u00e0 des l\u00e9sions oxydatives. En 2017, l&#8217;essai TORPIDO comparant une FiO\u2082 initiale de 0,21 \u00e0 une FiO\u2082 de 1,0 chez les pr\u00e9matur\u00e9s n&#8217;a pas abouti en raison de la lenteur des recrutements, mais a sugg\u00e9r\u00e9 une mortalit\u00e9 plus \u00e9lev\u00e9e chez les pr\u00e9matur\u00e9s de moins de 29&nbsp;semaines recevant une FiO\u2082 de 0,21, rappellent les auteurs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le nouvel essai, TORPIDO 30\/60, a \u00e9t\u00e9 men\u00e9 afin de d\u00e9terminer si une FiO\u2082 de 0,6 pour la r\u00e9animation initiale des pr\u00e9matur\u00e9s de moins de 29&nbsp;semaines am\u00e9liorait la survie sans s\u00e9quelles c\u00e9r\u00e9brales \u00e0 36&nbsp;semaines d&#8217;\u00e2ge gestationnel corrig\u00e9 par rapport \u00e0 une FiO\u2082 de 0,3. Ces concentrations respectent les recommandations cliniques actuelles et ont \u00e9t\u00e9 choisies sur la base de m\u00e9ta-analyses montrant des diff\u00e9rences dans les mesures physiologiques et cliniques pr\u00e9coces avec des concentrations plus \u00e9lev\u00e9es ou moins \u00e9lev\u00e9es d&#8217;oxyg\u00e8ne, expliquent Ju Lee Oei de l&#8217;universit\u00e9 de Sydney \u00e0 Camperdown (Australie) et ses coll\u00e8gues.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il s&#8217;agit du plus grand essai randomis\u00e9 comparant la r\u00e9animation dans la salle de naissance des tr\u00e8s grands pr\u00e9matur\u00e9s avec une concentration d&#8217;oxyg\u00e8ne initiale plus basse ou plus \u00e9lev\u00e9e, soulignent-ils, avec 1.641&nbsp;nouveau-n\u00e9s, n\u00e9s entre 23 et 28&nbsp;semaines, randomis\u00e9s peu avant la naissance entre les deux concentrations d&#8217;oxyg\u00e8ne pour la r\u00e9animation initiale. La FiO\u2082 \u00e9tait ensuite titr\u00e9e pour atteindre les cibles standard de saturation en oxyg\u00e8ne par oxym\u00e9trie de pouls dans les 10 premi\u00e8res&nbsp;minutes ou en cas de n\u00e9cessit\u00e9 clinique.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les proportions de nouveau-n\u00e9s dont la titration de la FiO\u2082 a \u00e9t\u00e9 jusqu&#8217;\u00e0 1,0 \u00e9taient similaires dans les deux groupes, \u00e0 41% et 38%.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le taux de d\u00e9c\u00e8s ou l\u00e9sion c\u00e9r\u00e9brale \u00e0 36&nbsp;semaines d&#8217;\u00e2ge gestationnel corrig\u00e9 \u00e9tait de 46,9% dans le groupe assign\u00e9 \u00e0 une FiO\u2082 initiale de 0,6 contre 47,8% dans le groupe assign\u00e9 \u00e0 une FiO\u2082 initiale de 0,3, soit un risque relatif de 0,98, sans diff\u00e9rence significative.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Toutefois, chez les nouveau-n\u00e9s recevant une FiO\u2082 initiale de 0,6, certains indicateurs associ\u00e9s \u00e0 un plus faible risque d&#8217;h\u00e9morragie intraventriculaire et de d\u00e9c\u00e8s \u00e9taient plus souvent observ\u00e9s que chez ceux recevant une FiO\u2082 de 0,3, et il y avait moins d&#8217;\u00e9pisodes d&#8217;hypoxie et de bradycardie et moins de recours \u00e0 des interventions de r\u00e9animation intensive chez les nouveau-n\u00e9s assign\u00e9s \u00e0 la FiO\u2082 initiale de 0,6.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&#8220;Ces diff\u00e9rences sugg\u00e8rent une meilleure stabilit\u00e9 physiologique dans le groupe FiO\u2082 \u00e0 0,6 dans les premi\u00e8res&nbsp;minutes de vie&#8221;, mais l&#8217;ensemble des r\u00e9sultats met en \u00e9vidence l&#8217;incertitude persistante sur la concentration initiale optimale d&#8217;oxyg\u00e8ne, commentent les auteurs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">(JAMA, <a href=\"https:\/\/jamanetwork.com\/journals\/jama\/fullarticle\/2842699\" target=\"_blank\" rel=\"noreferrer noopener\">publication en ligne du 10 d\u00e9cembre<\/a>)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>WASHINGTON, 11\u00a0d\u00e9cembre 2025 &#8211; L&#8217;oxyg\u00e9noth\u00e9rapie pour la r\u00e9animation des nouveau-n\u00e9s tr\u00e8s grands pr\u00e9matur\u00e9s ciblant une fraction d&#8217;oxyg\u00e8ne inspir\u00e9e (FiO\u2082) initiale de 0,6 n&#8217;affecte pas le risque de d\u00e9c\u00e8s ou de l\u00e9sion c\u00e9r\u00e9brale \u00e0 neuf\u00a0mois par rapport \u00e0 une FiO\u2082 de 0,3, montre un essai randomis\u00e9 international pr\u00e9sent\u00e9 mercredi au congr\u00e8s Hot Topics in Neonatology \u00e0 [&hellip;]<\/p>\n","protected":false},"author":87,"featured_media":0,"parent":151,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_editorskit_title_hidden":false,"_editorskit_reading_time":0,"_editorskit_is_block_options_detached":false,"_editorskit_block_options_position":"{}","_uag_custom_page_level_css":"","footnotes":""},"class_list":["post-8972","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - 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