{"id":10799,"date":"2026-06-28T07:56:06","date_gmt":"2026-06-28T07:56:06","guid":{"rendered":"https:\/\/cardiocases.com\/?post_type=ecg_case&#038;p=10799"},"modified":"2026-07-02T11:47:20","modified_gmt":"2026-07-02T11:47:20","slug":"trace-2-7-sick-sinus-syndrome","status":"publish","type":"ecg_case","link":"https:\/\/cardiocases.com\/fr\/ecg_case\/trace-2-7-sick-sinus-syndrome\/","title":{"rendered":"Trace 2.7: Sick sinus syndrome"},"content":{"rendered":"","protected":false},"featured_media":9537,"template":"","ecg_case_type":[251],"language_ecgcase":[258],"class_list":["post-10799","ecg_case","type-ecg_case","status-publish","has-post-thumbnail","hentry","ecg_case_type-sinus-dysfunction","language_ecgcase-english"],"acf":{"ecg_case_title":"Trace 2.7: Sick sinus syndrome","patient_description":"85-year-old man with grade II mitral regurgitation and a history of atrial fibrillation treated with anticoagulants and amiodarone; hospitalization for palpitations and cognitive impairment;","quiz_question":"Which features are associated with sick sinus syndrome?","quiz_answer_1":"paroxysmal AV block","quiz_answer_2":"sinus node dysfunction","quiz_answer_3":"supraventricular arrhythmia","quiz_answer_4":"permanent AV block","quiz_answer_5":"Wolf Parkinson White syndrome","correct_answer":["B","C"],"ecg_image":11052,"ecg_description":"Supraventricular tachycardia with irregular atrioventricular conduction; ventricular rate of 95 beats\/minute; rapid and regular atrial activity corresponding to atrial tachycardia; complete right bundle branch block (QRS duration of 125 ms, rSR\u2019 pattern in V1, septal q wave and widened S wave in V6);","ecg_info_box":"Sick sinus syndrom reflects the presence of a widespread alteration of the atrium affecting the sinus node (explaining the bradycardia) and atrial myocardium (explaining the supraventricular arrhythmias).","commentary_ecg":"Sick sinus syndrome or tachycardia-bradycardia syndrome is characterized by alternating episodes of supraventricular tachycardia (atrial tachycardia, AF, common flutter) and episodes of bradycardia related to sinus node dysfunction. Symptomatology combines secondary clinical signs with tachycardia (palpitations, heart failure) and bradycardia (fatigue, cognitive disorders, dyspnea, lipothymia, syncope). This association suggests the presence of diffuse organic atrial lesions with degenerative impairment of the automatic cells of the sinus node but also fibrosis extending to the atrial myocardium and occasionally to the specific tissue of the atrioventricular junction explaining the putative concomitant observation of atrioventricular conduction disorders.\r\n\r\nIt is common to differentiate sick sinus syndrome (absence of a chronological link between tachycardia occurence and bradycardia occurence), post-tachycardia pauses (sinus pauses observed exclusively directly after termination of atrial arrhythmia) and vagal arrhythmias (episodes of arrhythmia observed solely after a sinus slowing of vagal origin).","ecg_info_post_answer":"<img class=\"alignnone wp-image-10401 size-large\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/04\/trace-2-7-ecg2-e1775043110279-1024x734.png\" alt=\"\" width=\"800\" height=\"573\" \/>\r\n\r\n<strong>Trace description <\/strong>\r\n\r\nBradycardia 25 beats\/minute; atrial escape rhythm from the coronary sinus region (negative atrial activity in inferior leads, reflecting an activation arising from the inferior aspect of the atrium), narrow QRS (morphological pattern similar to that of a tachycardia QRS but narrower);\r\n\r\n<img class=\"alignnone wp-image-10812 size-large\" src=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/06\/trace-2-7-ecg-en-1024x576.jpg\" alt=\"\" width=\"800\" height=\"450\" \/>"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Trace 2.7: Sick sinus syndrome - 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-2-7-sick-sinus-syndrome\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Trace 2.7: Sick sinus syndrome - Cardiocases\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cardiocases.com\/fr\/ecg_case\/trace-2-7-sick-sinus-syndrome\/\" \/>\n<meta property=\"og:site_name\" content=\"Cardiocases\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-02T11:47:20+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/03\/trace-2-7-ecg-e1782936293572.png\" \/>\n\t<meta property=\"og:image:width\" content=\"2334\" \/>\n\t<meta property=\"og:image:height\" content=\"1387\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\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-2-7-sick-sinus-syndrome\\\/\",\"url\":\"https:\\\/\\\/cardiocases.com\\\/ecg_case\\\/trace-2-7-sick-sinus-syndrome\\\/\",\"name\":\"Trace 2.7: Sick sinus syndrome - Cardiocases\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/cardiocases.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/cardiocases.com\\\/ecg_case\\\/trace-2-7-sick-sinus-syndrome\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/cardiocases.com\\\/ecg_case\\\/trace-2-7-sick-sinus-syndrome\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/cardiocases.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/trace-2-7-ecg-e1782936293572.png\",\"datePublished\":\"2026-06-28T07:56:06+00:00\",\"dateModified\":\"2026-07-02T11:47:20+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/cardiocases.com\\\/ecg_case\\\/trace-2-7-sick-sinus-syndrome\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/cardiocases.com\\\/ecg_case\\\/trace-2-7-sick-sinus-syndrome\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/cardiocases.com\\\/ecg_case\\\/trace-2-7-sick-sinus-syndrome\\\/#primaryimage\",\"url\":\"https:\\\/\\\/cardiocases.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/trace-2-7-ecg-e1782936293572.png\",\"contentUrl\":\"https:\\\/\\\/cardiocases.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/trace-2-7-ecg-e1782936293572.png\",\"width\":2334,\"height\":1387},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/cardiocases.com\\\/ecg_case\\\/trace-2-7-sick-sinus-syndrome\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/cardiocases.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Trace 2.7: Sick sinus syndrome\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/cardiocases.com\\\/#website\",\"url\":\"https:\\\/\\\/cardiocases.com\\\/\",\"name\":\"Cardiocases\",\"description\":\"Real cardiac device traces, pacemaker &amp; ICD learning \u2014 built by electrophysiologists\",\"publisher\":{\"@id\":\"https:\\\/\\\/cardiocases.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/cardiocases.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/cardiocases.com\\\/#organization\",\"name\":\"Cardiocases\",\"url\":\"https:\\\/\\\/cardiocases.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/cardiocases.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/cardiocases.com\\\/wp-content\\\/uploads\\\/2025\\\/07\\\/cardiocases_logo.png\",\"contentUrl\":\"https:\\\/\\\/cardiocases.com\\\/wp-content\\\/uploads\\\/2025\\\/07\\\/cardiocases_logo.png\",\"width\":1755,\"height\":499,\"caption\":\"Cardiocases\"},\"image\":{\"@id\":\"https:\\\/\\\/cardiocases.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.linkedin.com\\\/company\\\/cardiocases\\\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Trace 2.7: Sick sinus syndrome - Cardiocases","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":"https:\/\/cardiocases.com\/fr\/ecg_case\/trace-2-7-sick-sinus-syndrome\/","og_locale":"fr_FR","og_type":"article","og_title":"Trace 2.7: Sick sinus syndrome - Cardiocases","og_url":"https:\/\/cardiocases.com\/fr\/ecg_case\/trace-2-7-sick-sinus-syndrome\/","og_site_name":"Cardiocases","article_modified_time":"2026-07-02T11:47:20+00:00","og_image":[{"width":2334,"height":1387,"url":"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/03\/trace-2-7-ecg-e1782936293572.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/cardiocases.com\/ecg_case\/trace-2-7-sick-sinus-syndrome\/","url":"https:\/\/cardiocases.com\/ecg_case\/trace-2-7-sick-sinus-syndrome\/","name":"Trace 2.7: Sick sinus syndrome - Cardiocases","isPartOf":{"@id":"https:\/\/cardiocases.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/cardiocases.com\/ecg_case\/trace-2-7-sick-sinus-syndrome\/#primaryimage"},"image":{"@id":"https:\/\/cardiocases.com\/ecg_case\/trace-2-7-sick-sinus-syndrome\/#primaryimage"},"thumbnailUrl":"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/03\/trace-2-7-ecg-e1782936293572.png","datePublished":"2026-06-28T07:56:06+00:00","dateModified":"2026-07-02T11:47:20+00:00","breadcrumb":{"@id":"https:\/\/cardiocases.com\/ecg_case\/trace-2-7-sick-sinus-syndrome\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/cardiocases.com\/ecg_case\/trace-2-7-sick-sinus-syndrome\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/cardiocases.com\/ecg_case\/trace-2-7-sick-sinus-syndrome\/#primaryimage","url":"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/03\/trace-2-7-ecg-e1782936293572.png","contentUrl":"https:\/\/cardiocases.com\/wp-content\/uploads\/2026\/03\/trace-2-7-ecg-e1782936293572.png","width":2334,"height":1387},{"@type":"BreadcrumbList","@id":"https:\/\/cardiocases.com\/ecg_case\/trace-2-7-sick-sinus-syndrome\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/cardiocases.com\/"},{"@type":"ListItem","position":2,"name":"Trace 2.7: Sick sinus syndrome"}]},{"@type":"WebSite","@id":"https:\/\/cardiocases.com\/#website","url":"https:\/\/cardiocases.com\/","name":"Cardiocases","description":"Real cardiac device traces, pacemaker &amp; ICD learning \u2014 built by electrophysiologists","publisher":{"@id":"https:\/\/cardiocases.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/cardiocases.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/cardiocases.com\/#organization","name":"Cardiocases","url":"https:\/\/cardiocases.com\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/cardiocases.com\/#\/schema\/logo\/image\/","url":"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/07\/cardiocases_logo.png","contentUrl":"https:\/\/cardiocases.com\/wp-content\/uploads\/2025\/07\/cardiocases_logo.png","width":1755,"height":499,"caption":"Cardiocases"},"image":{"@id":"https:\/\/cardiocases.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.linkedin.com\/company\/cardiocases\/"]}]}},"_links":{"self":[{"href":"https:\/\/cardiocases.com\/fr\/wp-json\/wp\/v2\/ecg_case\/10799","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cardiocases.com\/fr\/wp-json\/wp\/v2\/ecg_case"}],"about":[{"href":"https:\/\/cardiocases.com\/fr\/wp-json\/wp\/v2\/types\/ecg_case"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cardiocases.com\/fr\/wp-json\/wp\/v2\/media\/9537"}],"wp:attachment":[{"href":"https:\/\/cardiocases.com\/fr\/wp-json\/wp\/v2\/media?parent=10799"}],"wp:term":[{"taxonomy":"ecg_case_type","embeddable":true,"href":"https:\/\/cardiocases.com\/fr\/wp-json\/wp\/v2\/ecg_case_type?post=10799"},{"taxonomy":"language_ecgcase","embeddable":true,"href":"https:\/\/cardiocases.com\/fr\/wp-json\/wp\/v2\/language_ecgcase?post=10799"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}