{"id":6726,"date":"2022-07-20T11:55:32","date_gmt":"2022-07-20T09:55:32","guid":{"rendered":"https:\/\/www.asssa.es\/ca\/?p=6726"},"modified":"2022-07-20T12:43:29","modified_gmt":"2022-07-20T10:43:29","slug":"talassemia","status":"publish","type":"post","link":"https:\/\/www.asssa.es\/ca\/talassemia\/","title":{"rendered":"Talass\u00e8mia"},"content":{"rendered":"<p>La paraula talass\u00e8mia procedeix del grec (mar i sang) i \u00e9s freq\u00fcent al Mediterrani (sud d&#8217;Espanya i It\u00e0lia, Sic\u00edlia, Sardenya i nord d&#8217;\u00c0frica).<!--more--><\/p>\n<p>\u00c9s un <strong>tipus d&#8217;an\u00e8mia heredit\u00e0ria<\/strong> que afecta la composici\u00f3 de l&#8217;hemoglobina -Hb-, una prote\u00efna continguda en els gl\u00f2buls vermells i que s&#8217;encarrega del transport de l&#8217;oxigen.<\/p>\n<p>Una talass\u00e8mia \u00e9s una alteraci\u00f3 de la mol\u00e8cula d\u2019Hb deguda a una falta de s\u00edntesi, total o parcial, de cadenes de globina (prote\u00efna constituent de l\u2019Hb).<\/p>\n<p>L\u2019Hb de l&#8217;adult, HbA, est\u00e0 composta per 4 cadenes de polip\u00e8ptids, 2 cadenes alfa i 2 cadenes beta.<\/p>\n<ul>\n<li>En la <strong>talass\u00e8mia alfa<\/strong> hi ha un d\u00e8ficit de s\u00edntesi de cadenes alfa i, per tant, un exc\u00e9s de cadenes beta que transporten deficientment l&#8217;oxigen.<\/li>\n<li>En la <strong>talass\u00e8mia beta<\/strong> hi ha un d\u00e8ficit de cadenes beta i, per tant, un exc\u00e9s de cadenes alfa amb una afectaci\u00f3 dels gl\u00f2buls vermells i causa de la seva destrucci\u00f3\u2026 an\u00e8mia hemol\u00edtica.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Si s&#8217;afecta nom\u00e9s un gen, <strong>an\u00e8mia hemol\u00edtica lleu o moderada<\/strong> (talass\u00e8mia menor) sol ser asimptom\u00e0tica i \u00e9s la m\u00e9s freq\u00fcent en l&#8217;\u00e0rea del Mediterrani.<\/p>\n<p>Si s&#8217;afecten dos o m\u00e9s gens, es tracta de formes m\u00e9s greus d&#8217;an\u00e8mia. Cursen amb feblesa, cansament i dispnea en casos greus -talass\u00e8mia beta major- tamb\u00e9 dita, a vegades, <strong>An\u00e8mia de Cooley<\/strong>. Aquesta an\u00e8mia hemol\u00edtica cong\u00e8nita afecta nens i es manifesta a partir dels 3 &#8211; 4 anys. Cursa amb mal desenvolupament corporal, amb trastorns hep\u00e0tics de la melsa, de la medul\u00b7la \u00f2ssia, dels ossos&#8230;<\/p>\n<p>La talass\u00e8mia es diagnostica per una an\u00e0lisi simple de sang (hemograma), on apareix un augment de gl\u00f2buls vermells i una microcitosi (gl\u00f2buls vermells petits). Sol afectar diversos membres de la fam\u00edlia. La confirmaci\u00f3 diagn\u00f2stica \u00e9s per estudi de l&#8217;ADN.<\/p>\n<p>En les formes m\u00e9s lleus de talass\u00e8mia, asimptom\u00e0tiques o amb s\u00edmptomes lleus, l&#8217;\u00fanic tractament que s&#8217;utilitza \u00e9s l&#8217;\u00e0cid f\u00f2lic. En les formes m\u00e9s severes o greus -beta talass\u00e8mia major- s\u00f3n necess\u00e0ries transfusions de sang freq\u00fcents, trasplantament de medul\u00b7la \u00f2ssia o ter\u00e0pia gen\u00e8tica.<\/p>\n<h6><strong><u><a href=\"https:\/\/www.asssa.es\/ca\/assegurances-salut\/\">ASSSA Assegurances de Salut<\/a><\/u><\/strong><\/h6>\n<h6><em>La informaci\u00f3 publicada en aquest mitj\u00e0 no substitueix ni complementa cap manera l\u2019atenci\u00f3 directa d\u2019un metge, ni el seu diagn\u00f2stic, ni el tractament que prescrigui; tampoc s\u2019ha d\u2019utilitzar per a l\u2019autodiagn\u00f2stic.<\/em><\/h6>\n<h6><em>L\u2019\u00fas que faci el lector d\u2019aquest servei es realitza sota la seva exclusiva responsabilitat.<\/em><\/h6>\n<h6><em>ASSSA recomana que per a qualsevol q\u00fcesti\u00f3 relacionada amb la seva salut consulti sempre amb un metge.<\/em><\/h6>\n","protected":false},"excerpt":{"rendered":"<p>La paraula talass\u00e8mia procedeix del grec (mar i sang) i \u00e9s freq\u00fcent al Mediterrani (sud d&#8217;Espanya i It\u00e0lia, Sic\u00edlia, Sardenya i nord d&#8217;\u00c0frica).<\/p>\n","protected":false},"author":16,"featured_media":6730,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[32],"tags":[],"class_list":["post-6726","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-consells-de-salut"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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