{"id":7147,"date":"2012-04-22T13:54:34","date_gmt":"2012-04-22T13:54:34","guid":{"rendered":"http:\/\/cardiophile.org\/?p=7147"},"modified":"2023-08-01T21:59:43","modified_gmt":"2023-08-01T16:29:43","slug":"atrial-pacing","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/professional\/atrial-pacing\/","title":{"rendered":"ECG findings in atrial pacing"},"content":{"rendered":"<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/Tnt_GXN-adQ\" 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;\">ECG findings in atrial pacing<\/span><\/h2>\n<p>Each P wave is preceded by a sharp pacing spike, indicating atrial pacing with regular pacing and capture. The P wave morphology in atrial pacing is different from the usual sinus rhythm P wave as the sequence of atrial activation is different for atrial pacing compared to sinus rhythm. If the pacing is from the upper part of the right atrium, P waves will be upright in inferior leads as the activation proceeds downwards towards the inferior leads. But if the pacing is from low atrium, P waves will be inverted in inferior leads as the activation proceeds from below upwards in the atrium.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-32277 size-full\" src=\"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2017\/06\/Atrial-pacing-1.jpg\" alt=\"atrial pacing\" width=\"1475\" height=\"676\"><\/p>\n<p>Latency or the interval between the pacing spike and the P wave, can be increased due to atrial conduction disease. It will also widen the P wave. Short and sharp P waves are noted in atrial septal pacing. In upper septal pacing, P waves are positive in inferior leads and V1 will show a small negative deflection. Lower septal pacing on the other hand shows negative P waves in inferior leads and a positive P wave in V1 [1].<\/p>\n<p><span style=\"color: #0000ff;\"><strong>Reference<\/strong><\/span><\/p>\n<ol>\n<li>Das A. <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC5650557\/\">Electrocardiographic features: Various atrial site pacing<\/a>. Indian Heart J. 2017 Sep-Oct;69(5):675-680. doi: 10.1016\/j.ihj.2017.08.030. Epub 2017 Sep 1. PMID: 29054201; PMCID: PMC5650557.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Each P wave is preceded by a sharp pacing spike, indicating atrial pacing with regular pacing and capture. P wave morphology is different from sinus rhythm.<\/p>\n","protected":false},"author":1,"featured_media":39340,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[6],"tags":[],"class_list":["post-7147","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 v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ECG findings in atrial pacing<\/title>\n<meta name=\"description\" content=\"Each P wave is preceded by a sharp pacing spike, indicating atrial pacing with regular pacing and capture. P wave morphology is different from sinus rhythm.\" \/>\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\/atrial-pacing\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ECG findings in atrial pacing\" \/>\n<meta property=\"og:description\" content=\"Each P wave is preceded by a sharp pacing spike, indicating atrial pacing with regular pacing and capture. 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