{"id":10164,"date":"2026-04-02T19:45:29","date_gmt":"2026-04-02T19:45:29","guid":{"rendered":"https:\/\/cardiocases.com\/?post_type=ecg_case&#038;p=10164"},"modified":"2026-04-09T09:55:03","modified_gmt":"2026-04-09T09:55:03","slug":"trace-5-10-doublets-ventriculaires-et-dysplasie-arythmogene-du-ventricule-droit","status":"publish","type":"ecg_case","link":"https:\/\/cardiocases.com\/fr\/ecg_case\/trace-5-10-doublets-ventriculaires-et-dysplasie-arythmogene-du-ventricule-droit\/","title":{"rendered":"Trac\u00e9 5.10: Doublets ventriculaires et dysplasie arythmog\u00e8ne du ventricule droit"},"content":{"rendered":"","protected":false},"featured_media":10163,"template":"","ecg_case_type":[254],"language_ecgcase":[259],"class_list":["post-10164","ecg_case","type-ecg_case","status-publish","has-post-thumbnail","hentry","ecg_case_type-extrasystoles","language_ecgcase-french"],"acf":{"ecg_case_title":"Trac\u00e9 5.10: Doublets ventriculaires et dysplasie arythmog\u00e8ne du ventricule droit","patient_description":"Homme de 47 ans avec dysplasie arythmog\u00e8ne du ventricule droit; traitement par b\u00e9tablo\u00ad quant; ECG de contr\u00f4le","quiz_question":"Sur cet ECG, on retrouve:","quiz_answer_1":"une hypertrophie ventriculaire droite","quiz_answer_2":"un big\u00e9minisme ventriculaire","quiz_answer_3":"des extrasystoles ventriculaires \u00e0 retard gauche","quiz_answer_4":"des extrasystoles ventriculaires \u00e0 retard droit","quiz_answer_5":"des doublets ventriculaires","correct_answer":["C","E"],"ecg_image":10163,"ecg_description":"Rythme sinusal (onde P positive en DI, DII et n\u00e9gative en aVR); PR normal; QRS fin; ondes T n\u00e9gatives en V1-V2;\r\n\r\nDoublets d\u2019extrasystoles ventriculaires: battements pr\u00e9matur\u00e9s \u00e0 QRS large, monomorphes (m\u00eame aspect des 2 extrasystoles cons\u00e9cutives); origine infundibulaire droite probable (positivit\u00e9 dans les d\u00e9rivations inf\u00e9rieures et en V6, n\u00e9gativit\u00e9 en V1, transition tardive du QRS en V4);","ecg_info_box":"Dans une dysplasie arythmog\u00e8ne du ventricule droit, les extrasystoles proviennent principalement de l\u2019infundibulum pulmonaire mais peuvent avoir l\u2019apex et la r\u00e9gion sous-tricuspidienne comme origine (triangle de la dysplasie); elles sont g\u00e9n\u00e9ralement crochet\u00e9es, plus larges et moins amples que les extrasystoles b\u00e9nignes m\u00eame si la diff\u00e9rentiation est parfois difficile; l\u2019existence de plus de 2 morphologies diff\u00e9rentes t\u00e9moigne de l\u2019existence d\u2019une cardiopathie.","commentary_ecg":"Un doublet ventriculaire correspond \u00e0 la succession de 2 extrasystoles cons\u00e9cutives. Au del\u00e0 de 3 ou 5 extrasystoles cons\u00e9cutives en fonction des d\u00e9finitions, il est d\u2019usage de parler de tachycardie ventriculaire non soutenue (si elle dure moins de 30 secondes).\r\n\r\nLes extrasystoles ventriculaires dans le cadre de la dysplasie arythmog\u00e8ne du ventricule droit viennent g\u00e9n\u00e9ralement du ventricule droit (retard gauche) et sont en relation avec la localisation des infiltrats fibro-adipeux. Elles sont moins amples, plus larges et souvent polymorphes et crochet\u00e9es (diff\u00e9rents foyers pathologiques et propagation \u00e0 l\u2019int\u00e9rieur du myocarde ventriculaire ralentie et chaotique) ce qui permet de les diff\u00e9rencier des extrasystoles ventriculaires infundibulaires b\u00e9nignes. La r\u00e9ponse \u00e0 une stimulation cat\u00e9cholergique (\u00e9preuve d\u2019effort, test \u00e0 l\u2019isoprot\u00e9r\u00e9nol) diff\u00e8re \u00e9galement avec une augmentation sensible de l\u2019irritabilit\u00e9 \u00e0 l\u2019effort. Les extrasystoles sont parfois le premier signe r\u00e9v\u00e9lateur de l\u2019apparition de cette myocardiopathie.","ecg_info_post_answer":"<img class=\"alignnone wp-image-10324 size-large\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/04\/page-243-1024x581.png\" alt=\"\" width=\"800\" height=\"454\" \/>"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Trac\u00e9 5.10: Doublets ventriculaires et dysplasie arythmog\u00e8ne du ventricule droit - Cardiocases<\/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:\/\/cardiocases.com\/fr\/ecg_case\/trace-5-10-doublets-ventriculaires-et-dysplasie-arythmogene-du-ventricule-droit\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Trac\u00e9 5.10: Doublets ventriculaires et dysplasie arythmog\u00e8ne du ventricule droit - Cardiocases\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cardiocases.com\/fr\/ecg_case\/trace-5-10-doublets-ventriculaires-et-dysplasie-arythmogene-du-ventricule-droit\/\" \/>\n<meta property=\"og:site_name\" content=\"Cardiocases\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-09T09:55:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/03\/trace-5-10-ecg-2-scaled.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1263\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\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=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/cardiocases.com\/ecg_case\/trace-5-10-doublets-ventriculaires-et-dysplasie-arythmogene-du-ventricule-droit\/\",\"url\":\"https:\/\/cardiocases.com\/ecg_case\/trace-5-10-doublets-ventriculaires-et-dysplasie-arythmogene-du-ventricule-droit\/\",\"name\":\"Trac\u00e9 5.10: Doublets ventriculaires et dysplasie arythmog\u00e8ne du ventricule droit - Cardiocases\",\"isPartOf\":{\"@id\":\"https:\/\/cardiocases.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/cardiocases.com\/ecg_case\/trace-5-10-doublets-ventriculaires-et-dysplasie-arythmogene-du-ventricule-droit\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/cardiocases.com\/ecg_case\/trace-5-10-doublets-ventriculaires-et-dysplasie-arythmogene-du-ventricule-droit\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/03\/trace-5-10-ecg-2-scaled.jpeg\",\"datePublished\":\"2026-04-02T19:45:29+00:00\",\"dateModified\":\"2026-04-09T09:55:03+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/cardiocases.com\/ecg_case\/trace-5-10-doublets-ventriculaires-et-dysplasie-arythmogene-du-ventricule-droit\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/cardiocases.com\/ecg_case\/trace-5-10-doublets-ventriculaires-et-dysplasie-arythmogene-du-ventricule-droit\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/cardiocases.com\/ecg_case\/trace-5-10-doublets-ventriculaires-et-dysplasie-arythmogene-du-ventricule-droit\/#primaryimage\",\"url\":\"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/03\/trace-5-10-ecg-2-scaled.jpeg\",\"contentUrl\":\"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/03\/trace-5-10-ecg-2-scaled.jpeg\",\"width\":2560,\"height\":1263},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/cardiocases.com\/ecg_case\/trace-5-10-doublets-ventriculaires-et-dysplasie-arythmogene-du-ventricule-droit\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/cardiocases.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Trac\u00e9 5.10: Doublets ventriculaires et dysplasie arythmog\u00e8ne du ventricule droit\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/cardiocases.com\/#website\",\"url\":\"https:\/\/cardiocases.com\/\",\"name\":\"Cardiocases\",\"description\":\"Real cardiac device traces, pacemaker &amp; 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