{"id":7851,"date":"2012-08-29T10:06:54","date_gmt":"2012-08-29T10:06:54","guid":{"rendered":"http:\/\/cardiophile.org\/?p=7851"},"modified":"2023-05-05T20:10:37","modified_gmt":"2023-05-05T14:40:37","slug":"definition-of-conducting-channels-within-myocardial-scars","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/","title":{"rendered":"Definition of conducting channels within myocardial scars"},"content":{"rendered":"<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/TwgjvbWG8oA\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen=\"\"><\/iframe><\/p>\n<h2><span style=\"color: #008000;\">Definition of conducting channels within myocardial scars<\/span><\/h2>\n<p>Myocardial scars following infarction can have channels of conduction within them. These channels if connected to normal myocardium, can be the source of ventricular arrhythmias. Infarcted areas are defined as regions with an electrogram signal voltage of 1.5 millivolts or less. If the signals are only 0.5 millivolts or less, it is considered as a dense scar. Conducting channels within these scars should have higher signal amplitude and be bounded by two scar areas or one scar area and the mitral annulus. They should also be connected to normal myocardium at minimum of two sites.<\/p>\n<p>Conduction channels are targets for ventricular tachycardia ablation [1]. These channels can be identified with contrast enhanced cardiac magnetic resonance imaging as border zone corridors. Three dimensional structure of these channels can be visualized by 3D reconstruction of CE-CMR images. Juan et al studied 21 patients with healed myocardial infarction and ventricular tachycardia. The patients underwent CE-CMR prior to CARTO-guided ablation of ventricular tachycardia. Border zone channels on CE-CMR identified 74% of the critical isthmus of clinical ventricular tachycardias and half of all the conducting channels found in electroanatomic maps.<\/p>\n<p><strong><span style=\"color: #0000ff;\">Reference<\/span><\/strong><\/p>\n<ol>\n<li>Juan Fern\u00e1ndez-Armenta, Antonio Berruezo, David Andreu, Oscar Camara, Etelvino Silva, Luis Serra, Valeria Barbarito, Luigi Carotenutto, Reinder Evertz, Jos\u00e9 T Ortiz-P\u00e9rez, Teresa Mar\u00eda De Caralt, Rosario Jes\u00fas Perea, Marta Sitges, Lluis Mont, Alejandro Frangi, Josep Brugada. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/23685537\/\">Three-dimensional Architecture of Scar and Conducting Channels Based on High Resolution ce-CMR: Insights for Ventricular Tachycardia Ablation<\/a>. Circ Arrhythm Electrophysiol. 2013 Jun;6(3):528-37.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Channels of conduction within scars of myocardial infarction, if connected to normal myocardium, can be the source of ventricular arrhythmias.<\/p>\n","protected":false},"author":1,"featured_media":59406,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[6],"tags":[],"class_list":["post-7851","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ecg-electrophysiology"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Conducting channels within myocardial scars - definition<\/title>\n<meta name=\"description\" content=\"Conducting channels within myocardial scars, if connected to normal myocardium, can be the source of ventricular arrhythmias.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Conducting channels within myocardial scars - definition\" \/>\n<meta property=\"og:description\" content=\"Conducting channels within myocardial scars, if connected to normal myocardium, can be the source of ventricular arrhythmias.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/\" \/>\n<meta property=\"og:site_name\" content=\"All About Cardiovascular System and Disorders\" \/>\n<meta property=\"article:published_time\" content=\"2012-08-29T10:06:54+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-05-05T14:40:37+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2012\/08\/Definition-of-Conducting-Channels-Within-Myocardial-Scars.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"896\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Johnson Francis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Johnson Francis\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/definition-of-conducting-channels-within-myocardial-scars\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/definition-of-conducting-channels-within-myocardial-scars\\\/\"},\"author\":{\"name\":\"Johnson Francis\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#\\\/schema\\\/person\\\/5441d907049b914770f4bd98fb57feec\"},\"headline\":\"Definition of conducting channels within myocardial scars\",\"datePublished\":\"2012-08-29T10:06:54+00:00\",\"dateModified\":\"2023-05-05T14:40:37+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/definition-of-conducting-channels-within-myocardial-scars\\\/\"},\"wordCount\":257,\"publisher\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#\\\/schema\\\/person\\\/5441d907049b914770f4bd98fb57feec\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/definition-of-conducting-channels-within-myocardial-scars\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/wp-content\\\/uploads\\\/2012\\\/08\\\/Definition-of-Conducting-Channels-Within-Myocardial-Scars.jpg\",\"articleSection\":[\"ECG \\\/ Electrophysiology\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/definition-of-conducting-channels-within-myocardial-scars\\\/\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/definition-of-conducting-channels-within-myocardial-scars\\\/\",\"name\":\"Conducting channels within myocardial scars - definition\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/definition-of-conducting-channels-within-myocardial-scars\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/definition-of-conducting-channels-within-myocardial-scars\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/wp-content\\\/uploads\\\/2012\\\/08\\\/Definition-of-Conducting-Channels-Within-Myocardial-Scars.jpg\",\"datePublished\":\"2012-08-29T10:06:54+00:00\",\"dateModified\":\"2023-05-05T14:40:37+00:00\",\"description\":\"Conducting channels within myocardial scars, if connected to normal myocardium, can be the source of ventricular arrhythmias.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/definition-of-conducting-channels-within-myocardial-scars\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/definition-of-conducting-channels-within-myocardial-scars\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/definition-of-conducting-channels-within-myocardial-scars\\\/#primaryimage\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/wp-content\\\/uploads\\\/2012\\\/08\\\/Definition-of-Conducting-Channels-Within-Myocardial-Scars.jpg\",\"contentUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/wp-content\\\/uploads\\\/2012\\\/08\\\/Definition-of-Conducting-Channels-Within-Myocardial-Scars.jpg\",\"width\":1200,\"height\":896},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/definition-of-conducting-channels-within-myocardial-scars\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Definition of conducting channels within myocardial scars\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#website\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/\",\"name\":\"All About Cardiovascular System and Disorders\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#\\\/schema\\\/person\\\/5441d907049b914770f4bd98fb57feec\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#\\\/schema\\\/person\\\/5441d907049b914770f4bd98fb57feec\",\"name\":\"Johnson Francis\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g\",\"caption\":\"Johnson Francis\"},\"logo\":{\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g\"},\"description\":\"Former Professor of Cardiology, Calicut Govt. Medical Kozhikode, Kerala, India. Editor-in-Chief, BMH Medical Journal\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/author\\\/jf\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Conducting channels within myocardial scars - definition","description":"Conducting channels within myocardial scars, if connected to normal myocardium, can be the source of ventricular arrhythmias.","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:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/","og_locale":"en_US","og_type":"article","og_title":"Conducting channels within myocardial scars - definition","og_description":"Conducting channels within myocardial scars, if connected to normal myocardium, can be the source of ventricular arrhythmias.","og_url":"https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/","og_site_name":"All About Cardiovascular System and Disorders","article_published_time":"2012-08-29T10:06:54+00:00","article_modified_time":"2023-05-05T14:40:37+00:00","og_image":[{"width":1200,"height":896,"url":"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2012\/08\/Definition-of-Conducting-Channels-Within-Myocardial-Scars.jpg","type":"image\/jpeg"}],"author":"Johnson Francis","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Johnson Francis","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/#article","isPartOf":{"@id":"https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/"},"author":{"name":"Johnson Francis","@id":"https:\/\/johnsonfrancis.org\/professional\/#\/schema\/person\/5441d907049b914770f4bd98fb57feec"},"headline":"Definition of conducting channels within myocardial scars","datePublished":"2012-08-29T10:06:54+00:00","dateModified":"2023-05-05T14:40:37+00:00","mainEntityOfPage":{"@id":"https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/"},"wordCount":257,"publisher":{"@id":"https:\/\/johnsonfrancis.org\/professional\/#\/schema\/person\/5441d907049b914770f4bd98fb57feec"},"image":{"@id":"https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/#primaryimage"},"thumbnailUrl":"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2012\/08\/Definition-of-Conducting-Channels-Within-Myocardial-Scars.jpg","articleSection":["ECG \/ Electrophysiology"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/","url":"https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/","name":"Conducting channels within myocardial scars - definition","isPartOf":{"@id":"https:\/\/johnsonfrancis.org\/professional\/#website"},"primaryImageOfPage":{"@id":"https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/#primaryimage"},"image":{"@id":"https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/#primaryimage"},"thumbnailUrl":"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2012\/08\/Definition-of-Conducting-Channels-Within-Myocardial-Scars.jpg","datePublished":"2012-08-29T10:06:54+00:00","dateModified":"2023-05-05T14:40:37+00:00","description":"Conducting channels within myocardial scars, if connected to normal myocardium, can be the source of ventricular arrhythmias.","breadcrumb":{"@id":"https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/#primaryimage","url":"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2012\/08\/Definition-of-Conducting-Channels-Within-Myocardial-Scars.jpg","contentUrl":"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2012\/08\/Definition-of-Conducting-Channels-Within-Myocardial-Scars.jpg","width":1200,"height":896},{"@type":"BreadcrumbList","@id":"https:\/\/johnsonfrancis.org\/professional\/definition-of-conducting-channels-within-myocardial-scars\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/johnsonfrancis.org\/professional\/"},{"@type":"ListItem","position":2,"name":"Definition of conducting channels within myocardial scars"}]},{"@type":"WebSite","@id":"https:\/\/johnsonfrancis.org\/professional\/#website","url":"https:\/\/johnsonfrancis.org\/professional\/","name":"All About Cardiovascular System and Disorders","description":"","publisher":{"@id":"https:\/\/johnsonfrancis.org\/professional\/#\/schema\/person\/5441d907049b914770f4bd98fb57feec"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/johnsonfrancis.org\/professional\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":["Person","Organization"],"@id":"https:\/\/johnsonfrancis.org\/professional\/#\/schema\/person\/5441d907049b914770f4bd98fb57feec","name":"Johnson Francis","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g","caption":"Johnson Francis"},"logo":{"@id":"https:\/\/secure.gravatar.com\/avatar\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g"},"description":"Former Professor of Cardiology, Calicut Govt. Medical Kozhikode, Kerala, India. Editor-in-Chief, BMH Medical Journal","url":"https:\/\/johnsonfrancis.org\/professional\/author\/jf\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/posts\/7851","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/comments?post=7851"}],"version-history":[{"count":5,"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/posts\/7851\/revisions"}],"predecessor-version":[{"id":59415,"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/posts\/7851\/revisions\/59415"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/media\/59406"}],"wp:attachment":[{"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/media?parent=7851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/categories?post=7851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/tags?post=7851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}