{"id":11383392,"date":"2020-02-18T00:00:00","date_gmt":"2020-02-17T23:00:00","guid":{"rendered":"https:\/\/alertdiver.eu\/non-classifiee\/fenetre-doxygene\/"},"modified":"2020-02-18T00:00:00","modified_gmt":"2020-02-17T23:00:00","slug":"fenetre-doxygene","status":"publish","type":"post","link":"https:\/\/alertdiver.eu\/fr_FR\/articles\/fenetre-doxygene\/","title":{"rendered":"Fen\u00eatre d\u2019oxyg\u00e8ne"},"content":{"rendered":"<p style=\"text-align: justify;\">Le terme &laquo; <a href=\"https:\/\/en.wikipedia.org\/wiki\/Oxygen_window_in_diving_decompression\" target=\"_blank\" rel=\"noopener\">fen&ecirc;tre d&rsquo;oxyg&egrave;ne<\/a> &raquo; (Oxygen Window, ou OW en anglais) a &eacute;t&eacute; utilis&eacute; pour la premi&egrave;re fois par Albert R Behnke (1967). On utilise &eacute;galement les termes &laquo; sous-saturation inh&eacute;rente des tissus &raquo; ou &laquo; pression partielle vacante &raquo;. Autrement dit, la fen&ecirc;tre d&rsquo;oxyg&egrave;ne est la diff&eacute;rence de pression entre la pression partielle de l&rsquo;oxyg&egrave;ne (PO<sub>2<\/sub>) dans le sang art&eacute;riel, qui est en &eacute;quilibre avec la pression ambiante en raison des &eacute;changes gazeux dans les alv&eacute;oles du plongeur, et la PPO2 dans les tissus veineux.<\/p>\n<p style=\"text-align: justify;\">Elle est due &agrave; la consommation m&eacute;tabolique d&rsquo;oxyg&egrave;ne, au cours de laquelle l&rsquo;oxyg&egrave;ne est converti en dioxyde de carbone (CO<sub>2<\/sub>). Cependant, le CO<sub>2<\/sub> se dissout beaucoup plus facilement dans le plasma que l&rsquo;oxyg&egrave;ne, ce qui cr&eacute;e un &laquo; vide &raquo; dans la somme des pressions partielles du c&ocirc;t&eacute; veineux du tissu. Par cons&eacute;quent, notre m&eacute;tabolisme est responsable d&rsquo;une diff&eacute;rence de pression d&rsquo;environ 70 mbar entre le c&ocirc;t&eacute; veineux du tissu et la pression ambiante. <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/8216150\" target=\"_blank\" rel=\"noopener\">Le fait de respirer des m&eacute;langes de PO<sub>2<\/sub>plus &eacute;lev&eacute;s augmente davantage l&rsquo;ampleur de la fen&ecirc;tre d&rsquo;oxyg&egrave;ne<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le terme &laquo; fen&ecirc;tre d&rsquo;oxyg&egrave;ne &raquo; (Oxygen Window, ou OW en anglais) a &eacute;t&eacute; utilis&eacute; pour la premi&egrave;re fois par Albert R Behnke (1967). On&#8230;<\/p>\n","protected":false},"author":1,"featured_media":11376348,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[386],"tags":[1861],"authors":[1489],"class_list":["post-11383392","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","tag-ligne-medicale","authors-michael-menduno-fr_fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Fen\u00eatre d\u2019oxyg\u00e8ne - Alert Diver<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/alertdiver.eu\/fr_FR\/articles\/fenetre-doxygene\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fen\u00eatre d\u2019oxyg\u00e8ne - Alert Diver\" \/>\n<meta property=\"og:description\" content=\"Le terme &laquo; fen&ecirc;tre d&rsquo;oxyg&egrave;ne &raquo; (Oxygen Window, ou OW en anglais) a &eacute;t&eacute; utilis&eacute; pour la premi&egrave;re fois par Albert R Behnke (1967). 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