{"id":9849,"date":"2009-01-02T12:28:59","date_gmt":"2009-01-02T12:28:59","guid":{"rendered":"http:\/\/cardiophile.org\/2009\/01\/hypertrophic-cardiomyopathy-with-atrial-fibrillation.html"},"modified":"2024-01-05T18:34:59","modified_gmt":"2024-01-05T13:04:59","slug":"hypertrophic-cardiomyopathy-with-atrial-fibrillation","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/professional\/hypertrophic-cardiomyopathy-with-atrial-fibrillation\/","title":{"rendered":"Hypertrophic cardiomyopathy with atrial fibrillation"},"content":{"rendered":"<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/FKO2MLHrdbE?si=zzfz0ri_TapiJvIC\" 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;\">Hypertrophic cardiomyopathy with atrial fibrillation<\/span><\/h2>\n<figure id=\"attachment_26978\" aria-describedby=\"caption-attachment-26978\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-26978 size-full\" src=\"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2009\/01\/hcm-with-af.jpg\" alt=\"Hypertrophic cardiomyopathy with atrial fibrillation\" width=\"1000\" height=\"696\" \/><figcaption id=\"caption-attachment-26978\" class=\"wp-caption-text\">Hypertrophic cardiomyopathy with atrial fibrillation<\/figcaption><\/figure>\n<p>Atrial activity is seen as irregular fibrillary waves suggesting atrial fibrillation. The QRS complexes have a large amplitude in chest leads overlapping between the leads. Tall R waves in lateral leads and deep S waves in anterior leads along with gross ST segment depression with T wave inversion in lateral leads are suggestive of severe left ventricular hypertrophy. The QRS width is also increased to about 120 ms mimicking left bundle branch block. The ECG is from a case of advanced hypertrophic cardiomyopathy with atrial fibrillation.<\/p>\n<p>Development of atrial fibrillation leads to cardiac decompensation in hypertrophic cardiomyopathy due to loss of\u00a0 atrial kick. In a hypertrophied ventricle the booster effect of atrial contraction is very important for diastolic filling. Even though the contribution of atrial contraction to ventricular filling in a normal person is about 15 &#8211; 20 %, it may be over 30% in an individual with diastolic dysfunction as in hypertrophic cardiomyopathy. When the ventricular filling decreases, it reduces the cardiac output as well as increases the left ventricular outflow obstruction. This is because the severity of left ventricular outflow tract obstruction increases when the ventricular cavity size decreases.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ECG showing atrial fibrillation from a case of hypertrophic cardiomyopathy with left ventricular hypertrophy with strain pattern.<\/p>\n","protected":false},"author":1,"featured_media":17377,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[6,7],"tags":[],"class_list":["post-9849","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ecg-electrophysiology","category-ecg-library"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Hypertrophic cardiomyopathy with atrial fibrillation<\/title>\n<meta name=\"description\" content=\"Hypertrophic cardiomyopathy with atrial fibrillation - gross left ventricular hypertrophy (LVH) with strain pattern is seen.\" \/>\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\/hypertrophic-cardiomyopathy-with-atrial-fibrillation\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hypertrophic cardiomyopathy with atrial fibrillation\" \/>\n<meta property=\"og:description\" content=\"Hypertrophic cardiomyopathy with atrial fibrillation - gross left ventricular hypertrophy (LVH) with strain pattern is seen.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/johnsonfrancis.org\/professional\/hypertrophic-cardiomyopathy-with-atrial-fibrillation\/\" \/>\n<meta property=\"og:site_name\" content=\"All About Cardiovascular System and Disorders\" \/>\n<meta property=\"article:published_time\" content=\"2009-01-02T12:28:59+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-01-05T13:04:59+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2009\/01\/hcm-with-af-small1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"500\" \/>\n\t<meta property=\"og:image:height\" content=\"348\" \/>\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\\\/hypertrophic-cardiomyopathy-with-atrial-fibrillation\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/hypertrophic-cardiomyopathy-with-atrial-fibrillation\\\/\"},\"author\":{\"name\":\"Johnson Francis\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#\\\/schema\\\/person\\\/5441d907049b914770f4bd98fb57feec\"},\"headline\":\"Hypertrophic cardiomyopathy with atrial fibrillation\",\"datePublished\":\"2009-01-02T12:28:59+00:00\",\"dateModified\":\"2024-01-05T13:04:59+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/hypertrophic-cardiomyopathy-with-atrial-fibrillation\\\/\"},\"wordCount\":208,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#\\\/schema\\\/person\\\/5441d907049b914770f4bd98fb57feec\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/hypertrophic-cardiomyopathy-with-atrial-fibrillation\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/wp-content\\\/uploads\\\/2009\\\/01\\\/hcm-with-af-small1.jpg\",\"articleSection\":[\"ECG \\\/ Electrophysiology\",\"ECG Library\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/hypertrophic-cardiomyopathy-with-atrial-fibrillation\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/hypertrophic-cardiomyopathy-with-atrial-fibrillation\\\/\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/hypertrophic-cardiomyopathy-with-atrial-fibrillation\\\/\",\"name\":\"Hypertrophic cardiomyopathy with atrial fibrillation\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/hypertrophic-cardiomyopathy-with-atrial-fibrillation\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/hypertrophic-cardiomyopathy-with-atrial-fibrillation\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/wp-content\\\/uploads\\\/2009\\\/01\\\/hcm-with-af-small1.jpg\",\"datePublished\":\"2009-01-02T12:28:59+00:00\",\"dateModified\":\"2024-01-05T13:04:59+00:00\",\"description\":\"Hypertrophic cardiomyopathy with atrial fibrillation - 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