{"id":50,"date":"2018-12-04T23:31:46","date_gmt":"2018-12-04T23:31:46","guid":{"rendered":"http:\/\/soignant.reseau-amylose.org\/?page_id=27"},"modified":"2026-05-27T14:43:46","modified_gmt":"2026-05-27T12:43:46","slug":"le-point-sur-les-amyloses","status":"publish","type":"page","link":"https:\/\/reseau-amylose.org\/jesuissoignant\/pour-le-cardiologue\/le-point-sur-les-amyloses\/","title":{"rendered":"Le point sur les amyloses"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"50\" class=\"elementor elementor-50\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4ad28ca4 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4ad28ca4\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b2d7c07\" data-id=\"b2d7c07\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-469bcd2 elementor-widget elementor-widget-heading\" data-id=\"469bcd2\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Le point sur les amyloses cardiaques<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6822c70b elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"6822c70b\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4bbe292 elementor-widget elementor-widget-heading\" data-id=\"4bbe292\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Introduction \u00e0 destination du cardiologue \u00b7 R\u00e9seau Amylose \u00b7 Mis \u00e0 jour d\u00e9c. 2023<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-79d96b62 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"79d96b62\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-25cb506f\" data-id=\"25cb506f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c8db525 elementor-widget elementor-widget-heading\" data-id=\"c8db525\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Qu'est-ce que l'amylose cardiaque ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1edfcb0a elementor-widget elementor-widget-text-editor\" data-id=\"1edfcb0a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>L\u2019amylose est la manifestation de plusieurs maladies syst\u00e9miques <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/24070600\/\" target=\"_blank\" rel=\"noopener\">(article Mohty D et al ACVD)<\/a>.<\/p><p>La caract\u00e9ristique commune de ces maladies est une accumulation extracellulaire de prot\u00e9ines fibrillaires insolubles qui se d\u00e9posent et envahissent progressivement les tissus emp\u00eachant leur bon fonctionnement. L\u2019infiltration amylo\u00efde cardiaque est responsable d\u2019un \u00e9paississement du myocarde cr\u00e9ant une \u00ab hypertrophie \u00bb.<\/p><p>Cette infiltration se complique d\u2019insuffisance cardiaque et de trouble de la conduction. Tout ceci explique pourquoi le cardiologue est en premi\u00e8re position pour faire le diagnostic de cardiopathie amylo\u00efde. Malheureusement ce diagnostic est souvent \u00e9voqu\u00e9 tardivement apr\u00e8s un diagnostic initial \u00ab d\u2019insuffisance cardiaque \u00e0 Fraction d&rsquo;\u00c9jection Ventriculaire Gauche (FEVG) pr\u00e9serv\u00e9e \u00bb ou de \u00ab cardiopathie hypertensive \u00bb.<\/p><p>Afin d\u2019am\u00e9liorer l\u2019orientation diagnostique devant une cardiomyopathie et de d\u00e9passer ces simples diagnostics, la Soci\u00e9t\u00e9 Europ\u00e9enne de Cardiologie (ESC) a r\u00e9cemment revu la d\u00e9finition et la classification des cardiomyopathies.<\/p><p>Les cardiomyopathies hypertrophiques (CMH) sont d\u00e9finies d\u00e9sormais par un simple \u00e9paississement du myocarde regroupant ainsi sous le terme CMH des processus physiopathologiques tr\u00e8s diff\u00e9rents allant d\u2019une hypertrophie des cardiomyocytes observ\u00e9e dans les CMH sarcom\u00e9riques (mutation troponine, myosine\u2026) \u00e0 l\u2019infiltration du myocarde.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-62f2298 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"62f2298\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4ad8099\" data-id=\"4ad8099\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0757dce elementor-widget elementor-widget-heading\" data-id=\"0757dce\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Points cl\u00e9s pour les professionnels de sant\u00e9<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c752804 elementor-widget elementor-widget-text-editor\" data-id=\"c752804\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>L&rsquo;amylose cardiaque est sous-diagnostiqu\u00e9e : elle se cache derri\u00e8re des atteintes ORL (surdit\u00e9), rhumatologiques (canal carpien, doigt \u00e0 ressaut, Dupuytren, proth\u00e8se, &#8230;), des tableaux d&rsquo;insuffisance cardiaque \u00e0 FEVG pr\u00e9serv\u00e9e, de cardiomyopathie hypertrophique ou de r\u00e9tr\u00e9cissement aortique \u00e0 bas d\u00e9bit.<\/p><p>Les deux formes principales sont l&rsquo;amylose AL (60 % des cardiopathies amylo\u00efdes) et l&rsquo;amylose ATTR (sauvage ou h\u00e9r\u00e9ditaire). Leur diagnostic diff\u00e9rentiel est indispensable. Les traitements sont radicalement diff\u00e9rents.<\/p><p>Des traitements sp\u00e9cifiques et efficaces existent. La pr\u00e9cocit\u00e9 du diagnostic conditionne le pronostic. La prise en charge cardiologique de l&rsquo;amylose diff\u00e8re de celle de l&rsquo;insuffisance cardiaque classique.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-69aa290 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"69aa290\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-c67e98f\" data-id=\"c67e98f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c1327ad elementor-widget elementor-widget-heading\" data-id=\"c1327ad\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Quand penser \u00e0 l'amylose cardiaque ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b22889e elementor-widget elementor-widget-text-editor\" data-id=\"b22889e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La Soci\u00e9t\u00e9 Europ\u00e9enne de Cardiologie (ESC) a revu la classification des cardiomyopathies. Les CMH sont d\u00e9sormais d\u00e9finies par un \u00e9paississement du myocarde, regroupant des m\u00e9canismes tr\u00e8s diff\u00e9rents \u2014 de l&rsquo;hypertrophie des cardiomyocytes \u00e0 l&rsquo;infiltration.<\/p><div class=\"ref\"><i class=\"ti ti-book\" aria-hidden=\"true\"><\/i>Elliott P, Eur Heart J 2008 \u2014 Classification ESC \u00b7\u00a0<a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/17916581\/\">PubMed 17916581<\/a><\/div><h3>\u00c9voquer une amylose cardiaque devant :<\/h3><div class=\"ig\"><div class=\"ii\"><div class=\"dot\">\u00a0<\/div><p>Toute CMH (cardiomyopathie hypertrophique)<\/p><\/div><div class=\"ii\"><div class=\"dot\">\u00a0<\/div><p>Insuffisance cardiaque \u00e0 FEVG pr\u00e9serv\u00e9e<\/p><\/div><div class=\"ii\"><div class=\"dot\">\u00a0<\/div><p>Insuffisance cardiaque \u00e0 FEVG alt\u00e9r\u00e9e avec HVG<\/p><\/div><div class=\"ii\"><div class=\"dot\">\u00a0<\/div><p>Toute hypertrophie myocardique symptomatique<\/p><\/div><div class=\"ii\"><div class=\"dot\">\u00a0<\/div><p><span style=\"color: #000000\">Hypertrophie Ventriculaire Gauche <\/span><span style=\"font-size: 16px\">HVG + BSA3 ou BAV2-3 ou FA ou flutter<\/span><\/p><\/div><div class=\"ii\"><div class=\"dot\">\u00a0<\/div><p>R\u00e9tr\u00e9cissement aortique + HVG ou bas d\u00e9bit \/ bas gradient<\/p><\/div><\/div><h6>\u00a0<\/h6>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fe861aa elementor-widget elementor-widget-heading\" data-id=\"fe861aa\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Pourquoi d\u00e9pister l'amylose cardiaque ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c048c50 elementor-widget elementor-widget-text-editor\" data-id=\"c048c50\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div>Pronostic s\u00e9v\u00e8re \u00e0 court terme en l&rsquo;absence de traitement<\/div><div>\u00a0<\/div><div><i class=\"ti ti-pill\" aria-hidden=\"true\"><\/i>Des traitements sp\u00e9cifiques efficaces disponibles pour les formes ATTR et AL<\/div><div>\u00a0<\/div><div><i class=\"ti ti-heart-rate-monitor\" aria-hidden=\"true\"><\/i>Prise en charge cardiologique sp\u00e9cifique, diff\u00e9rente de l&rsquo;insuffisance cardiaque classique<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-ed7147a\" data-id=\"ed7147a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-70434f2 elementor-widget elementor-widget-image\" data-id=\"70434f2\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/reseau-amylose.org\/jesuissoignant\/storage\/sites\/5\/2023\/12\/QUAND-PENSER-A-AMYLOSE-1.png\" target=\"_blank\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"725\" height=\"1024\" src=\"https:\/\/reseau-amylose.org\/jesuissoignant\/wp-content\/uploads\/sites\/5\/2026\/02\/Quand-penser-a-lamylose-image-725x1024.jpg\" class=\"attachment-large size-large wp-image-7682\" alt=\"quand-penser-a-l-amylose\" srcset=\"https:\/\/reseau-amylose.org\/jesuissoignant\/wp-content\/uploads\/sites\/5\/2026\/02\/Quand-penser-a-lamylose-image-725x1024.jpg 725w, https:\/\/reseau-amylose.org\/jesuissoignant\/wp-content\/uploads\/sites\/5\/2026\/02\/Quand-penser-a-lamylose-image-212x300.jpg 212w, https:\/\/reseau-amylose.org\/jesuissoignant\/wp-content\/uploads\/sites\/5\/2026\/02\/Quand-penser-a-lamylose-image-768x1085.jpg 768w, https:\/\/reseau-amylose.org\/jesuissoignant\/wp-content\/uploads\/sites\/5\/2026\/02\/Quand-penser-a-lamylose-image.jpg 800w\" sizes=\"(max-width: 725px) 100vw, 725px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-07b3721 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"07b3721\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/www.reseau-amylose.org\/jesuissoignant\/documentation\/triptyques-du-centre-de-reference-des-amyloses-cardiaques-chu-henri-mondor\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">T\u00e9l\u00e9chargez le triptyque destin\u00e9 aux cardiologues - Amyloses cardiaques<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-243cd01f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"243cd01f\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-39438260\" data-id=\"39438260\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6d8ef3ef elementor-widget elementor-widget-video\" data-id=\"6d8ef3ef\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=w7aS0SCAE00&amp;list=PLgcbJqP0xnziiWGoyfVfv-BV-pZ-wgzjh&amp;index=15&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-0b21a48 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0b21a48\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1281a73\" data-id=\"1281a73\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6e5a01a elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"6e5a01a\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f5805f elementor-widget elementor-widget-heading\" data-id=\"5f5805f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Classification des amyloses \u2014 4 types principaux<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-101a3b42 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"101a3b42\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6e5f50cb\" data-id=\"6e5f50cb\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-530aec4f elementor-widget elementor-widget-text-editor\" data-id=\"530aec4f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La classification des amyloses repose sur la nature biochimique de la prot\u00e9ine amylo\u00efde impliqu\u00e9e dans la formation des d\u00e9p\u00f4ts. Une vingtaine de prot\u00e9ines peuvent former des fibrilles amylo\u00efdes (Fibrinog\u00e8ne, apo A1\u2026). Les formes cardiaques les plus fr\u00e9quentes sont les amyloses AL (immunoglobuliniques) et les amyloses \u00e0 transthyr\u00e9tine (TTR) : h\u00e9r\u00e9ditaire (TTR mut\u00e9e) ou sauvage (TTR sauvage).<\/p><p>\u00a0<\/p><section class=\"elementor-element elementor-element-d9d5728 elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-section elementor-top-section\" data-id=\"d9d5728\" data-element_type=\"section\"><div class=\"elementor-container elementor-column-gap-default\"><div class=\"elementor-row\"><div class=\"elementor-element elementor-element-dd4f4f6 elementor-column elementor-col-100 elementor-top-column\" data-id=\"dd4f4f6\" data-element_type=\"column\"><div class=\"elementor-column-wrap elementor-element-populated\"><div class=\"elementor-widget-wrap\"><div class=\"elementor-element elementor-element-af00c61 elementor-widget elementor-widget-text-editor\" data-id=\"af00c61\" data-element_type=\"text-editor.default\"><div class=\"elementor-widget-container\"><div class=\"elementor-text-editor elementor-clearfix\"><table border=\"2\" cellspacing=\"0\" cellpadding=\"0\" align=\"center\"><tbody><tr><td width=\"200\"><h5><strong>Type d\u2019amylose<\/strong><\/h5><\/td><td width=\"185\"><h5><strong>Amylose AL<\/strong><\/h5><\/td><td colspan=\"2\" width=\"190\"><h5><strong>Amylose \u00e0 transthyr\u00e9tine<\/strong><\/h5><\/td><td width=\"190\"><h5><strong>Amylose AA<\/strong><\/h5><\/td><\/tr><tr><td width=\"200\"><h5><strong>\u00a0<\/strong><\/h5><\/td><td width=\"185\"><h5><strong>\u00a0<\/strong><\/h5><\/td><td width=\"190\"><h5><strong>\u00a0H\u00e9r\u00e9ditaire<\/strong><\/h5><\/td><td width=\"190\"><h5><strong>Sauvage<\/strong><\/h5><\/td><td width=\"190\"><h5><strong>\u00a0<\/strong><\/h5><\/td><\/tr><tr><td><h5><strong>\u00a0D\u00e9pots<\/strong><\/h5><\/td><td><h5>Cha\u00eenes l\u00e9g\u00e8res d\u2019Ig(Kappa ou Lambda)<\/h5><\/td><td><h5>Transthyr\u00e9tine mut\u00e9e<\/h5><\/td><td><h5>Transthyr\u00e9tine sauvage<\/h5><\/td><td><h5>Prot\u00e9ine inflammatoire<\/h5><\/td><\/tr><tr><td><h5><strong>\u00a0Source<\/strong><\/h5><\/td><td><h5>Moelle osseuse<\/h5><\/td><td><h5>Foie<\/h5><\/td><td><h5>Foie<\/h5><\/td><td><h5>Prot\u00e9ine inflammatoire<\/h5><\/td><\/tr><tr><td><h5><strong>Organes atteints<\/strong><\/h5><\/td><td><h5>Coeur, rein, foie, syst\u00e8me nerveux<\/h5><\/td><td><h5>Syst\u00e8me nerveux p\u00e9riph\u00e9rique, coeur<\/h5><\/td><td><h5>Coeur<\/h5><\/td><td><h5>Rein, Foie<\/h5><\/td><\/tr><\/tbody><\/table><h5>\u00a0\u00a0<strong>Sources, type de d\u00e9p\u00f4ts et organes atteintes dans les quatres types principaux d\u2019amylose<\/strong><\/h5><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-63ad12ff elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"63ad12ff\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1714788d\" data-id=\"1714788d\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1ec6807 elementor-widget elementor-widget-heading\" data-id=\"1ec6807\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Les amyloses AL<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c9e8fe1 elementor-widget elementor-widget-text-editor\" data-id=\"1c9e8fe1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Les amyloses AL sont li\u00e9es principalement aux gammapathies monoclonales (MGUS) ou au my\u00e9lome. Les gammapathies monoclonales sont tr\u00e8s fr\u00e9quentes et touchent environ 10% des patients de 60 ans. Ces gammapathies se compliquent heureusement rarement d\u2019amylose mais repr\u00e9sentent plus de 60% des cardiopathies amylo\u00efdes.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-72d997e elementor-widget elementor-widget-heading\" data-id=\"72d997e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Les amyloses ATTR sauvage (ATTRwt)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dfe9f63 elementor-widget elementor-widget-text-editor\" data-id=\"dfe9f63\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La transthyr\u00e9tine (TTR) est une prot\u00e9ine synth\u00e9tis\u00e9e par le foie sous forme de monom\u00e8re. Ces monom\u00e8res s\u2019assemblent en t\u00e9tram\u00e8res qui transportent des prot\u00e9ines (ex : hormone thyro\u00efdienne, vitamine D) dans le sang. Les amyloses TTR sont de deux types :<\/p><p style=\"padding-left: 30px\"><em>1\/ <strong>Amylose \u00e0 transthyr\u00e9tine<\/strong> <b>dite \u00ab s\u00e9nile \u00bb<\/b>\u00a0<b>ou\u00a0<\/b><\/em><b><em>\u00ab\u00a0<\/em><em style=\"color: inherit\">sauvage\u00a0<\/em><em>\u00bb\u00a0<\/em><\/b><em style=\"color: inherit\">o\u00f9 le pr\u00e9curseur est la transthyr\u00e9tine non-mut\u00e9e (ATTRwt) survenant quasi-exclusivement chez des hommes \u00e2g\u00e9s. <a href=\"https:\/\/www.em-consulte.com\/en\/article\/816196\">(article Damy T et al, Senile systemic amyloidosis)<\/a>. Les m\u00e9canismes de cette amylose ne sont pas connus.<\/em><\/p><p style=\"padding-left: 30px\"><em>2\/ <strong>Amylose \u00e0 transthyr\u00e9tine h\u00e9r\u00e9ditaire<\/strong>, la forme familiale o\u00f9 la transthyr\u00e9tine est mut\u00e9e (ATTRm) <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/24070600\/\" target=\"_blank\" rel=\"noopener\">(article Mohty D et al, cardiac amyloidosis)<\/a>.<\/em><\/p><p>La transmission est autosomique dominante. Plus de 120 mutations pathog\u00e8nes du g\u00e8ne codant pour la TTR ont \u00e9t\u00e9 identifi\u00e9es. Les d\u00e9p\u00f4ts tissulaires comportent \u00e9galement de la transthyr\u00e9tine non mut\u00e9e. Bien qu\u2019h\u00e9r\u00e9ditaire, on ne retrouve des ant\u00e9c\u00e9dents familiaux que dans 50% des cas. L\u2019atteinte tissulaire est variable suivant la mutation.<\/p><p>La mutation ATTR Val122Ile est la plus fr\u00e9quente. Cette mutation est pr\u00e9sente chez 3,9% des patients d&rsquo;origine africaine (<a style=\"background-color: #ffffff\" href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/9017939\/\" target=\"_blank\" rel=\"noopener\">article Jacobson DR et al, variant-sequence transthyretinin late-onset cardiac amyloidosis in black Americans)<\/a>. La p\u00e9n\u00e9trance de ces mutations est variable suivant le fond g\u00e9n\u00e9tique et la mutation. Les cas sporadiques se r\u00e9v\u00e8lent g\u00e9n\u00e9ralement tardivement, c.\u00e0.d. apr\u00e8s 50-60 ans.\u00a0\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3777e0a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3777e0a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-61978a2\" data-id=\"61978a2\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a6b31de elementor-align-center elementor-widget elementor-widget-button\" data-id=\"a6b31de\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/reseau-amylose.org\/jesuissoignant\/documentation\/documentation-triptyques-reseau-amylose\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">T\u00e9l\u00e9chargez le Triptyque Amyloses h\u00e9r\u00e9ditaires cardiologiques ATTR Val122Ile<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-064ca85 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"064ca85\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-27df161\" data-id=\"27df161\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-40a9a6c elementor-widget elementor-widget-text-editor\" data-id=\"40a9a6c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"color: #000000\">La mutation ATTR Val30Met est fr\u00e9quente chez les patients d\u2019origine portugaise par une neuropathie \u00e0 l\u2019\u00e2ge de 25 \u00e0 30 ans. Certaines mutations (Val122Ile, Ser77Tyr\u2026) touchent principalement ou exclusivement le c\u0153ur. Ces cas d\u2019amylose sont sous-estim\u00e9s dans la population des patients cardiologiques.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-78db4f6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"78db4f6\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-043fdc5\" data-id=\"043fdc5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-296968a elementor-align-center elementor-widget elementor-widget-button\" data-id=\"296968a\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/reseau-amylose.org\/jesuissoignant\/documentation\/documentation-triptyques-reseau-amylose\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">T\u00e9l\u00e9chargez le Triptyque Amyloses h\u00e9r\u00e9ditaires cardiologiques ATTR Val30Met<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6eff423 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6eff423\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-986a009\" data-id=\"986a009\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-52d0714 elementor-widget elementor-widget-text-editor\" data-id=\"52d0714\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"color: #000000\">Le diagnostic se fait sur l\u2019analyse anatomopathologique qui retrouve des d\u00e9p\u00f4ts d\u2019amylose avec un immunomarquage positif pour transthyr\u00e9tine. Le test g\u00e9n\u00e9tique r\u00e9alis\u00e9 par s\u00e9quen\u00e7age qui identifie la mutation du g\u00e8ne de la transthyr\u00e9tine.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-88be57d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"88be57d\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-0089e74\" data-id=\"0089e74\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-70768af elementor-widget elementor-widget-heading\" data-id=\"70768af\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Orientation diagnostique<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-12efae84 elementor-widget elementor-widget-text-editor\" data-id=\"12efae84\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La recherche syst\u00e9matique des signes cliniques, ECG et \u00e9chocardiographiques devant toute hypertrophie ventriculaire permet un diagnostic plus pr\u00e9coce.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-714df68\" data-id=\"714df68\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8f6b4ff elementor-widget elementor-widget-image\" data-id=\"8f6b4ff\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"427\" height=\"736\" src=\"https:\/\/reseau-amylose.org\/jesuissoignant\/wp-content\/uploads\/sites\/5\/2026\/05\/Capture-decran-2026-05-27-a-14.31.46.png\" class=\"attachment-medium_large size-medium_large wp-image-8260\" alt=\"Le point sur les amyloses cardiaques\" srcset=\"https:\/\/reseau-amylose.org\/jesuissoignant\/wp-content\/uploads\/sites\/5\/2026\/05\/Capture-decran-2026-05-27-a-14.31.46.png 427w, https:\/\/reseau-amylose.org\/jesuissoignant\/wp-content\/uploads\/sites\/5\/2026\/05\/Capture-decran-2026-05-27-a-14.31.46-174x300.png 174w\" sizes=\"(max-width: 427px) 100vw, 427px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d8e652d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d8e652d\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-fb0782c\" data-id=\"fb0782c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f8aa7ea elementor-widget elementor-widget-heading\" data-id=\"f8aa7ea\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Pourquoi un centre de r\u00e9f\u00e9rence ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4575291 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4575291\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-ab1f2ca\" data-id=\"ab1f2ca\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-60966aa elementor-widget elementor-widget-heading\" data-id=\"60966aa\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Prise en charge multidisciplinaire<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cc04a68 elementor-widget elementor-widget-text-editor\" data-id=\"cc04a68\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Cardiologie, h\u00e9matologie, neurologie, g\u00e9n\u00e9tique, anatomopathologie \u2014 sur un m\u00eame site<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-7e85572\" data-id=\"7e85572\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-645d91f elementor-widget elementor-widget-heading\" data-id=\"645d91f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Acc\u00e8s rapide aux soins<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f9cf284 elementor-widget elementor-widget-text-editor\" data-id=\"f9cf284\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Cardiologie, h\u00e9matologie, neurologie, g\u00e9n\u00e9tique, anatomopathologie \u2014 sur un m\u00eame site<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2aec599 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2aec599\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5f6b52a\" data-id=\"5f6b52a\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-531f4d6 elementor-widget elementor-widget-heading\" data-id=\"531f4d6\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">FAQ<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-03de1b3 elementor-widget elementor-widget-toggle\" data-id=\"03de1b3\" data-element_type=\"widget\" data-widget_type=\"toggle.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-4051\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-4051\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Qu'est-ce que l'amylose cardiaque ?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-4051\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-4051\"><div class=\"fq\"><div class=\"fq-a\">Maladie caract\u00e9ris\u00e9e par le d\u00e9p\u00f4t extracellulaire de prot\u00e9ines fibrillaires dans le myocarde, entra\u00eenant une cardiomyopathie infiltrante hypertrophique. Formes principales : AL (cha\u00eenes l\u00e9g\u00e8res), ATTR sauvage (TTR non mut\u00e9e, homme \u00e2g\u00e9), ATTR h\u00e9r\u00e9ditaire (mutation g\u00e8ne TTR).<\/div><\/div><div class=\"fq\">\u00a0<\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-4052\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-4052\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Quand penser \u00e0 l'amylose cardiaque en consultation ?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-4052\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-4052\"><p>Devant toute CMH inexpliqu\u00e9e, insuffisance cardiaque \u00e0 FEVG pr\u00e9serv\u00e9e, HVG avec troubles de conduction (BSA, BAV, FA), ou r\u00e9tr\u00e9cissement aortique \u00e0 bas d\u00e9bit et bas gradient. Souvent diagnostiqu\u00e9e tardivement apr\u00e8s un diagnostic d&rsquo;insuffisance cardiaque ou cardiopathie hypertensive.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-4053\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-4053\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Quelle est la diff\u00e9rence entre amylose ATTR sauvage et h\u00e9r\u00e9ditaire ?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-4053\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-4053\"><p>La forme sauvage (ATTRwt) est li\u00e9e \u00e0 un d\u00e9p\u00f4t de TTR non mut\u00e9e chez l&rsquo;homme \u00e2g\u00e9, m\u00e9canismes non \u00e9lucid\u00e9s. La forme h\u00e9r\u00e9ditaire (ATTRv) est li\u00e9e \u00e0 une mutation du g\u00e8ne TTR (&gt;120 mutations, autosomique dominante) avec atteinte neurologique et\/ou cardiaque selon la mutation.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-4054\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-4054\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Quelle est la classification des amyloses cardiaques ?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-4054\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-4054\"><div class=\"fq\"><div class=\"fq-a\">AL (cha\u00eenes l\u00e9g\u00e8res Ig, 60 % des cardiopathies amylo\u00efdes), ATTR sauvage (TTR non mut\u00e9e, homme \u00e2g\u00e9, c\u0153ur exclusif), ATTR h\u00e9r\u00e9ditaire (TTR mut\u00e9e, neurologique et\/ou cardiaque), AA (prot\u00e9ine SAA, inflammatoire, rein et foie principalement).<\/div><\/div><div class=\"fq\">\u00a0<\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ab55396 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ab55396\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-28923c8\" data-id=\"28923c8\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b977795 elementor-widget elementor-widget-text-editor\" data-id=\"b977795\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"aeo\">L&rsquo;amylose cardiaque est une maladie syst\u00e9mique caract\u00e9ris\u00e9e par le d\u00e9p\u00f4t extracellulaire de prot\u00e9ines fibrillaires dans le myocarde, entra\u00eenant une cardiomyopathie infiltrante hypertrophique. Les formes principales sont l&rsquo;amylose AL (cha\u00eenes l\u00e9g\u00e8res, 60 % des cardiopathies amylo\u00efdes) et l&rsquo;amylose ATTR (transthyr\u00e9tine, sauvage ATTRwt ou h\u00e9r\u00e9ditaire ATTRv, mutation du g\u00e8ne TTR). Elle doit \u00eatre \u00e9voqu\u00e9e devant toute CMH inexpliqu\u00e9e, insuffisance cardiaque \u00e0 FEVG pr\u00e9serv\u00e9e, ou HVG avec troubles de conduction. Des traitements sp\u00e9cifiques existent \u2014 la pr\u00e9cocit\u00e9 du diagnostic conditionne le pronostic. Le R\u00e9seau Amylose (CRAC, H\u00f4pital Henri-Mondor, AP-HP, 01 49 81 22 53) est la structure nationale de r\u00e9f\u00e9rence.<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Le point sur les amyloses cardiaques Introduction \u00e0 destination du cardiologue \u00b7 R\u00e9seau Amylose \u00b7 Mis \u00e0 jour d\u00e9c. 2023 Qu&rsquo;est-ce que l&rsquo;amylose cardiaque ? L\u2019amylose est la manifestation de plusieurs maladies syst\u00e9miques (article Mohty D et al ACVD). La caract\u00e9ristique commune de ces maladies est une accumulation extracellulaire de prot\u00e9ines fibrillaires insolubles qui se [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":115,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-50","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Le point sur les amyloses - R\u00e9seau Amylose<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/reseau-amylose.org\/jesuissoignant\/pour-le-cardiologue\/le-point-sur-les-amyloses\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le point sur les amyloses - R\u00e9seau Amylose\" \/>\n<meta property=\"og:description\" content=\"Le point sur les amyloses cardiaques Introduction \u00e0 destination du cardiologue \u00b7 R\u00e9seau Amylose \u00b7 Mis \u00e0 jour d\u00e9c. 2023 Qu&rsquo;est-ce que l&rsquo;amylose cardiaque ? L\u2019amylose est la manifestation de plusieurs maladies syst\u00e9miques (article Mohty D et al ACVD). La caract\u00e9ristique commune de ces maladies est une accumulation extracellulaire de prot\u00e9ines fibrillaires insolubles qui se [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"http:\/\/reseau-amylose.org\/jesuissoignant\/pour-le-cardiologue\/le-point-sur-les-amyloses\/\" \/>\n<meta property=\"og:site_name\" content=\"R\u00e9seau Amylose\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-27T12:43:46+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/reseau-amylose.org\/jesuissoignant\/wp-content\/uploads\/sites\/5\/2026\/02\/Quand-penser-a-lamylose-image-725x1024.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"http:\/\/reseau-amylose.org\/jesuissoignant\/pour-le-cardiologue\/le-point-sur-les-amyloses\/\",\"url\":\"http:\/\/reseau-amylose.org\/jesuissoignant\/pour-le-cardiologue\/le-point-sur-les-amyloses\/\",\"name\":\"Le point sur les amyloses - R\u00e9seau Amylose\",\"isPartOf\":{\"@id\":\"https:\/\/reseau-amylose.org\/jesuissoignant\/#website\"},\"primaryImageOfPage\":{\"@id\":\"http:\/\/reseau-amylose.org\/jesuissoignant\/pour-le-cardiologue\/le-point-sur-les-amyloses\/#primaryimage\"},\"image\":{\"@id\":\"http:\/\/reseau-amylose.org\/jesuissoignant\/pour-le-cardiologue\/le-point-sur-les-amyloses\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/reseau-amylose.org\/jesuissoignant\/wp-content\/uploads\/sites\/5\/2026\/02\/Quand-penser-a-lamylose-image-725x1024.jpg\",\"datePublished\":\"2018-12-04T23:31:46+00:00\",\"dateModified\":\"2026-05-27T12:43:46+00:00\",\"breadcrumb\":{\"@id\":\"http:\/\/reseau-amylose.org\/jesuissoignant\/pour-le-cardiologue\/le-point-sur-les-amyloses\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\/\/reseau-amylose.org\/jesuissoignant\/pour-le-cardiologue\/le-point-sur-les-amyloses\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"http:\/\/reseau-amylose.org\/jesuissoignant\/pour-le-cardiologue\/le-point-sur-les-amyloses\/#primaryimage\",\"url\":\"https:\/\/reseau-amylose.org\/jesuissoignant\/wp-content\/uploads\/sites\/5\/2026\/02\/Quand-penser-a-lamylose-image.jpg\",\"contentUrl\":\"https:\/\/reseau-amylose.org\/jesuissoignant\/wp-content\/uploads\/sites\/5\/2026\/02\/Quand-penser-a-lamylose-image.jpg\",\"width\":800,\"height\":1130,\"caption\":\"quand-penser-a-l-amylose\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\/\/reseau-amylose.org\/jesuissoignant\/pour-le-cardiologue\/le-point-sur-les-amyloses\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\/\/reseau-amylose.org\/jesuissoignant\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Pour le cardiologue\",\"item\":\"https:\/\/reseau-amylose.org\/jesuissoignant\/pour-le-cardiologue\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Le point sur les amyloses\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/reseau-amylose.org\/jesuissoignant\/#website\",\"url\":\"https:\/\/reseau-amylose.org\/jesuissoignant\/\",\"name\":\"R\u00e9seau Amylose\",\"description\":\"Centre de r\u00e9f\u00e9rence des amyloses cardiaques espace soignant\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/reseau-amylose.org\/jesuissoignant\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Le point sur les amyloses - R\u00e9seau Amylose","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"http:\/\/reseau-amylose.org\/jesuissoignant\/pour-le-cardiologue\/le-point-sur-les-amyloses\/","og_locale":"fr_FR","og_type":"article","og_title":"Le point sur les amyloses - R\u00e9seau Amylose","og_description":"Le point sur les amyloses cardiaques Introduction \u00e0 destination du cardiologue \u00b7 R\u00e9seau Amylose \u00b7 Mis \u00e0 jour d\u00e9c. 2023 Qu&rsquo;est-ce que l&rsquo;amylose cardiaque ? 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