{"id":177013,"date":"2014-08-26T00:00:00","date_gmt":"2014-08-25T22:00:00","guid":{"rendered":"https:\/\/www.bcfi.be\/contraception-durgence-diminution-de-lefficacite-chez-les-femmes-obeses\/"},"modified":"2026-04-02T19:11:22","modified_gmt":"2026-04-02T17:11:22","slug":"contraception-durgence-diminution-de-lefficacite-chez-les-femmes-obeses","status":"publish","type":"post","link":"https:\/\/h.cbip.be\/fr\/contraception-durgence-diminution-de-lefficacite-chez-les-femmes-obeses\/","title":{"rendered":"CONTRACEPTION D\u2019URGENCE\u00a0: DIMINUTION DE L\u2019EFFICACITE CHEZ LES FEMMES OBESES\u00a0?"},"content":{"rendered":"<div class='tekst'>\n<p style='margin-left:35.7pt;'>Chez les femmes en surcharge pond\u00e9rale (indice de masse corporelle ou IMC > 25)&#x002C; les contraceptifs oraux (sauf les estroprogestatifs de premi\u00e8re g\u00e9n\u00e9ration \u00e0 doses \u00e9lev\u00e9es) pourraient \u00eatre moins fiables [voir Folia de mars 2005]. Une diminution de l\u2019efficacit\u00e9 de la contraception d\u2019urgence (<em>morning after pill<\/em>) a \u00e9galement \u00e9t\u00e9 sugg\u00e9r\u00e9e chez les femmes ob\u00e8ses (IMC > 30) sur base des r\u00e9sultats d\u2019analyses post-hoc[1]<a href=''urgence%20chez%20femmes%20ob%C3%A8ses%2026%2008%2014.doc#_ftn1' name='_ftnref1' title=''> de deux \u00e9tudes randomis\u00e9es ayant compar\u00e9 l\u2019efficacit\u00e9 du l\u00e9vonorgestrel et de l\u2019ulipristal dans le cadre de la contraception d\u2019urgence: une augmentation statistiquement significative du risque d\u2019\u00e9chec de la contraception d\u2019urgence par le l\u00e9vonorgestrel a \u00e9t\u00e9 constat\u00e9e chez les femmes avec un IMC > 30 par rapport aux femmes avec un IMC < 25 (odds ratio 4&#x002C;41\u00a0; IC \u00e0 95% 2&#x002C;05 \u00e0 9&#x002C;44). Avec l\u2019ulipristal&#x002C; l\u2019augmentation du risque \u00e9tait moins importante et statistiquement non significative.<\/a><\/p>\n<p style='margin-left:35.7pt;'><a href=''urgence%20chez%20femmes%20ob%C3%A8ses%2026%2008%2014.doc#_ftn1' name='_ftnref1' title=''>L\u2019<em>European<\/em> <em>Medicines Agency<\/em> (EMA) a proc\u00e9d\u00e9 \u00e0 une \u00e9valuation de ces donn\u00e9es&#x002C; et le <em>Committee for Medicinal Products for Human Use<\/em> (CHMP) a conclu r\u00e9cemment que les donn\u00e9es disponibles sont trop limit\u00e9es et ne permettent pas de conclure \u00e0 une diminution de l\u2019efficacit\u00e9 de la contraception d\u2019urgence chez les femmes ob\u00e8ses. Le CHMP est d\u2019avis que la balance b\u00e9n\u00e9fice-risque tant du l\u00e9vonorgestrel que de l\u2019ulipristal reste b\u00e9n\u00e9fique et que ceux-ci peuvent \u00eatre utilis\u00e9s comme contraceptifs d\u2019urgence ind\u00e9pendamment du poids corporel.[2]<\/a><a href=''urgence%20chez%20femmes%20ob%C3%A8ses%2026%2008%2014.doc#_ftn2' name='_ftnref2' title=''> \u00a0Le CHMP rappelle que la contraception d\u2019urgence doit \u00eatre prise le plus rapidement possible apr\u00e8s le rapport sexuel&#x002C; et que la contraception d\u2019urgence n\u2019est \u00e0 utiliser qu\u2019en cas de n\u00e9cessit\u00e9 et ne peut pas remplacer l\u2019usage r\u00e9gulier de contraceptifs.<\/a><\/p>\n<div>\n<hr align='left' size='1' width='33%' \/>\n<div id='ftn1'>\n<p><br clear='all' \/> <a href=''urgence%20chez%20femmes%20ob%C3%A8ses%2026%2008%2014.doc#_ftnref1' name='_ftn1' title=''>[1]<\/a><em>Contraception<\/em> 2011\u00a0; 84\u00a0: 363-7 (doi\u00a0:10.1016\/j.contraception.2011.02.009)<\/p>\n<\/p><\/div>\n<div id='ftn2'>\n<p><a href=''urgence%20chez%20femmes%20ob%C3%A8ses%2026%2008%2014.doc#_ftnref2' name='_ftn2' title=''>[2]<\/a> https:\/\/www.ema.europa.eu\/docs\/en_GB\/document_library\/Press_release\/2014\/07\/WC500170056.pdf<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Chez les femmes en surcharge pond\u00e9rale (indice de masse corporelle  [&#8230;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,179],"tags":[20213,20224],"class_list":["post-177013","post","type-post","status-publish","format-standard","hentry","category-actualites","category-2014-fr","tag-import_tags","tag-import_tags-nl"],"_links":{"self":[{"href":"https:\/\/h.cbip.be\/fr\/wp-json\/wp\/v2\/posts\/177013","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/h.cbip.be\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/h.cbip.be\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/h.cbip.be\/fr\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/h.cbip.be\/fr\/wp-json\/wp\/v2\/comments?post=177013"}],"version-history":[{"count":1,"href":"https:\/\/h.cbip.be\/fr\/wp-json\/wp\/v2\/posts\/177013\/revisions"}],"predecessor-version":[{"id":179587,"href":"https:\/\/h.cbip.be\/fr\/wp-json\/wp\/v2\/posts\/177013\/revisions\/179587"}],"wp:attachment":[{"href":"https:\/\/h.cbip.be\/fr\/wp-json\/wp\/v2\/media?parent=177013"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/h.cbip.be\/fr\/wp-json\/wp\/v2\/categories?post=177013"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/h.cbip.be\/fr\/wp-json\/wp\/v2\/tags?post=177013"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}