{"id":9353,"date":"2015-01-25T09:05:47","date_gmt":"2015-01-25T09:05:47","guid":{"rendered":"http:\/\/www.cardiophile.org\/common\/?p=8282"},"modified":"2022-02-07T15:31:08","modified_gmt":"2022-02-07T10:01:08","slug":"what-is-belhassens-vt","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/professional\/what-is-belhassens-vt\/","title":{"rendered":"What is Belhassen&#8217;s VT?"},"content":{"rendered":"<h2><span style=\"color: #008000;\">Belhassen&#8217;s VT:\u00a0Idiopathic Fascicular Ventricular Tachycardia<\/span><\/h2>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/gifytfbq7bw\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p><strong><span style=\"color: #0000ff;\">Heart Disease FAQ \/ Brief Review<\/span><\/strong><\/p>\n<p><strong><span style=\"color: #0000ff;\">Abstract:<\/span>\u00a0<\/strong><em>Belhassen&#8217;s VT is idiopathic fascicular ventricular tachycardia originating from the left posterior fascicle. It is responsive to verapamil and is an ablatable VT.<\/em><\/p>\n<p><strong><span style=\"color: #3366ff;\">On Belhassen&#8217;s VT for Heart Disease FAQ<\/span><\/strong><\/p>\n<p><span style=\"color: #3366ff;\">Belhassen&#8217;s VT is a fast rhythm originating from the left ventricle. VT is short for ventricular tachycardia.\u00a0It is named after the person who described it.\u00a0Belhassen&#8217;s VT originates from a branch of the left bundle branch known as the posterior fascicle. Hence it is also known as posterior fascicular tachycardia. To be more exact, its name is idiopathic posterior fascicular tachycardia. Idiopathic means of unknown origin, indicating that it is not secondary to a known cause like a heart attack with loss of blood supply to the region. It manifests in the ECG with a pattern simulating right bundle branch block with left axis deviation of the QRS complex.<\/span><br \/>\n<b><\/b><\/p>\n<figure id=\"attachment_53042\" aria-describedby=\"caption-attachment-53042\" style=\"width: 1200px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-53042\" src=\"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2015\/01\/Posterior-fascicular-tachycardia.jpg\" alt=\"Posterior fascicular tachycardia\" width=\"1200\" height=\"1091\" srcset=\"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2015\/01\/Posterior-fascicular-tachycardia.jpg 1200w, https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2015\/01\/Posterior-fascicular-tachycardia-300x273.jpg 300w, https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2015\/01\/Posterior-fascicular-tachycardia-1024x931.jpg 1024w, https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2015\/01\/Posterior-fascicular-tachycardia-768x698.jpg 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption id=\"caption-attachment-53042\" class=\"wp-caption-text\">Posterior fascicular tachycardia (Representative image)<\/figcaption><\/figure>\n<p><strong><span style=\"color: #0000ff;\">More on Belhassen&#8217;s VT<\/span><\/strong><\/p>\n<p>Belhassen and associates described a ventricular tachycardia responding to verapamil,<sup>1<\/sup>\u00a0unlike the usual ventricular tachycardias which respond to lignocaine. It may be noted that verapamil is conventionally a drug used for treatment of supraventricular rather than ventricular tachycardia. Even though other authors had reported on ventricular tachycardias with relatively narrow QRS complex originating from the posterior fascicle,<sup>2<\/sup> it was Belhassen and colleagues who suggested this form of ventricular tachycardia as a separate entity.<sup>3<\/sup><\/p>\n<figure id=\"attachment_53043\" aria-describedby=\"caption-attachment-53043\" style=\"width: 1200px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-53043\" src=\"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2015\/01\/Idiopathic-Fascicular-Ventricular-Tachycardia-Belhassens-Ventricular-Tachycardia.jpg\" alt=\"Idiopathic Fascicular Ventricular Tachycardia (Belhassen\u2019s Ventricular Tachycardia)\" width=\"1200\" height=\"899\" srcset=\"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2015\/01\/Idiopathic-Fascicular-Ventricular-Tachycardia-Belhassens-Ventricular-Tachycardia.jpg 1200w, https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2015\/01\/Idiopathic-Fascicular-Ventricular-Tachycardia-Belhassens-Ventricular-Tachycardia-300x225.jpg 300w, https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2015\/01\/Idiopathic-Fascicular-Ventricular-Tachycardia-Belhassens-Ventricular-Tachycardia-1024x767.jpg 1024w, https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2015\/01\/Idiopathic-Fascicular-Ventricular-Tachycardia-Belhassens-Ventricular-Tachycardia-768x575.jpg 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption id=\"caption-attachment-53043\" class=\"wp-caption-text\">Idiopathic Fascicular Ventricular Tachycardia (Belhassen\u2019s Ventricular Tachycardia)<\/figcaption><\/figure>\n<p><em>12 lead ECG of Idiopathic Fascicular Ventricular Tachycardia showing classical right bundle branch block (RBBB) pattern with leftward axis morphology suggestive of posterior fascicular origin.<\/em> (Courtesy: Francis J, Gupta AK et al)<sup>4<\/sup>.<\/p>\n<p><strong><span style=\"color: #0000ff;\">ECG patterns in fascicular ventricular tachycardia<\/span><\/strong><\/p>\n<p>Classical ECG pattern in Belhassen&#8217;s VT is right bundle branch block pattern with left axis deviation as it originates from the left posterior fascicle. Tachycardia originating from the left anterior fascicle has right bundle branch block pattern with right axis deviation and that originating from the left septal fascicle has right bundle branch block pattern with normal axis.<sup>4<\/sup><br \/>\n<b><\/b><\/p>\n<p><strong><span style=\"color: #0000ff;\">Treatment of Belhassen&#8217;s VT<\/span><\/strong><\/p>\n<p>Though intravenous verapamil is useful for termination of the tachycardia, success in prophylaxis is variable. Some cases respond to oral propranolol prophylaxis. Radiofrequency catheter ablation is a good option for Belhassen&#8217;s VT with good success rates being reported.<sup>4<\/sup><br \/>\n<b><\/b><\/p>\n<p><strong><span style=\"color: #0000ff;\">References<\/span><\/strong><\/p>\n<ol>\n<li>Belhassen B, Rotmensch HH, Laniado S. Response of recurrent sustained ventricular tachycardia to verapamil. Br Heart J. 1981 Dec; 46(6): 679-82.<\/li>\n<li>Cohen HC, Gozo EG Jr, Pick A. Ventricular tachycardia with narrow QRS complexes (left posterior fascicular tachycardia). Circulation. 1972 May; 45(5): 1035-43.<\/li>\n<li>Belhassen B, Shapira I, Pelleg A, Copperman I, Kauli N, Laniado S. Idiopathic recurrent sustained ventricular tachycardia responsive to verapamil: an ECG-electrophysiologic entity. Am Heart J. 1984 Oct; 108(4 Pt 1): 1034-7.<\/li>\n<li>Francis J, Venugopal K, Khadar SA, Sudhayakumar N, Gupta AK. <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC1501077\/\">Idiopathic Fascicular Ventricular Tachycardia<\/a>. Indian Pacing Electrophysiol. J. 2004;4(3):98-103.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Belhassen&#8217;s VT is a fast rhythm originating from the left ventricle. VT is short for ventricular tachycardia. It is named after the person who described it as a separate entity.<\/p>\n","protected":false},"author":1,"featured_media":53043,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[6,7,11],"tags":[],"class_list":["post-9353","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ecg-electrophysiology","category-ecg-library","category-heart-disease-faq"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What is Belhassen&#039;s VT? - All About Cardiovascular System and Disorders<\/title>\n<meta name=\"description\" content=\"Belhassen&#039;s VT is a fast rhythm originating from the left ventricle. VT is short for ventricular tachycardia. 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