{"id":335,"date":"2008-07-13T14:14:43","date_gmt":"2008-07-13T08:44:43","guid":{"rendered":"http:\/\/cardiophile.com\/idiopathic-fascicular-ventricular-tachycardia-belhassens-ventricular-tachycardia"},"modified":"2022-02-07T15:44:24","modified_gmt":"2022-02-07T10:14:24","slug":"idiopathic-fascicular-ventricular-tachycardia-belhassens-ventricular-tachycardia","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/general\/idiopathic-fascicular-ventricular-tachycardia-belhassens-ventricular-tachycardia\/","title":{"rendered":"Idiopathic Fascicular Ventricular Tachycardia (Belhassen\u2019s Ventricular Tachycardia)"},"content":{"rendered":"<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/WHibjMbKAXw\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"><\/iframe><\/p>\n<h2><span style=\"color: #008000;\">Idiopathic Fascicular Ventricular Tachycardia (Belhassen\u2019s Ventricular Tachycardia)<\/span><\/h2>\n<p>Idiopathic fascicular ventricular tachycardia is unique in that it has a relatively narrower QRS width and it responds to verapamil. It has also been called as verapamil sensitive tachycardia and Belhassen&#8217;s ventricular tachycardia. One of the earlier descriptions was by Belhassen in 1984, published in the American Heart Journal. The classical form is characterized by right bundle branch block pattern and left axis deviation and a QRS duration of around 120 msec. This variety is due to re-entry in the region of the posterior fascicle of the left bundle branch. Hence it is also called posterior fascicular tachycardia. The rarer variety arising from the region of the anterior fascicle has right axis deviation and right bundle branch block pattern. A still rarer variety with normal axis and right bundle branch block pattern has also been described, which has been called as the septal fascicular tachycardia.<\/p>\n<figure id=\"attachment_18412\" aria-describedby=\"caption-attachment-18412\" style=\"width: 640px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-18412\" src=\"https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2008\/07\/Posterior-fascicular-tachycardia-1024x931.jpg\" alt=\"Posterior fascicular tachycardia\" width=\"640\" height=\"582\" srcset=\"https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2008\/07\/Posterior-fascicular-tachycardia-1024x931.jpg 1024w, https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2008\/07\/Posterior-fascicular-tachycardia-300x273.jpg 300w, https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2008\/07\/Posterior-fascicular-tachycardia-768x698.jpg 768w, https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2008\/07\/Posterior-fascicular-tachycardia.jpg 1200w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption id=\"caption-attachment-18412\" class=\"wp-caption-text\">Posterior fascicular tachycardia (Representative image)<\/figcaption><\/figure>\n<p>The important feature of Belhassen\u2019s ventricular tachycardia, is as mentioned earlier, the response to verapamil and adenosine. In view of the relatively narrower QRS duration, it may mistakenly considered to be of supraventricular origin. Long term treatment with verapamil can prevent recurrence. But the treatment of choice currently is radiofrequency catheter ablation. This is because of the good results and lower risks of the procedure in this form of ventricular tachycardia. Radiofrequency catheter ablation offers a permanent cure in most cases and avoids the problems of long term medical therapy.<\/p>\n<figure id=\"attachment_18413\" aria-describedby=\"caption-attachment-18413\" style=\"width: 640px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-18413\" src=\"https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2008\/07\/Idiopathic-Fascicular-Ventricular-Tachycardia-Belhassens-Ventricular-Tachycardia-1024x767.jpg\" alt=\"Idiopathic Fascicular Ventricular Tachycardia (Belhassen\u2019s Ventricular Tachycardia)\" width=\"640\" height=\"479\" srcset=\"https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2008\/07\/Idiopathic-Fascicular-Ventricular-Tachycardia-Belhassens-Ventricular-Tachycardia-1024x767.jpg 1024w, https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2008\/07\/Idiopathic-Fascicular-Ventricular-Tachycardia-Belhassens-Ventricular-Tachycardia-300x225.jpg 300w, https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2008\/07\/Idiopathic-Fascicular-Ventricular-Tachycardia-Belhassens-Ventricular-Tachycardia-768x575.jpg 768w, https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2008\/07\/Idiopathic-Fascicular-Ventricular-Tachycardia-Belhassens-Ventricular-Tachycardia.jpg 1200w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption id=\"caption-attachment-18413\" class=\"wp-caption-text\">Idiopathic Fascicular Ventricular Tachycardia (Belhassen\u2019s Ventricular Tachycardia)<\/figcaption><\/figure>\n<p style=\"text-align: left;\" align=\"center\">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. Courtesy: Johnson Francis, Venugopal K, Khadar SA, Sudhayakumar N, Anoop K. Gupta. Idiopathic Fascicular Ventricular Tachycardia. <a title=\"Idiopathic Fascicular Ventricular Tachycardia, IPEJ\" href=\"http:\/\/www.ipej.org\/0403\/francis4.htm\">Indian Pacing Electrophysiol. J. 2004;4(3):98-103<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Idiopathic Fascicular Ventricular Tachycardia (Belhassen\u2019s Ventricular Tachycardia) Idiopathic fascicular ventricular tachycardia is unique in that it has a relatively narrower QRS width and it responds to verapamil. It has also been called as verapamil sensitive tachycardia and Belhassen&#8217;s ventricular tachycardia. One of the earlier descriptions was by Belhassen in 1984, published in the American Heart [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":18413,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[6],"tags":[],"class_list":["post-335","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electrical-system-of-the-heart"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Idiopathic Fascicular Ventricular Tachycardia (Belhassen\u2019s VT)<\/title>\n<meta name=\"description\" content=\"Idiopathic fascicular ventricular tachycardia is unique in that it has a relatively narrower QRS width and it responds to verapamil. 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