{"id":319,"date":"2008-10-12T01:11:43","date_gmt":"2008-10-12T01:11:43","guid":{"rendered":"http:\/\/cardiophile.org\/?p=319"},"modified":"2024-01-26T06:04:26","modified_gmt":"2024-01-26T00:34:26","slug":"ecg-quiz-14","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/professional\/ecg-quiz-14\/","title":{"rendered":"Old anterior wall myocardial infarction and left atrial overload"},"content":{"rendered":"<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/rkaUKb6UFCA?si=EXKysvB58cd_Dgwd\" 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 Quiz 14<\/span><\/h2>\n<figure id=\"attachment_38213\" aria-describedby=\"caption-attachment-38213\" style=\"width: 1458px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-38213\" src=\"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2008\/10\/Old-anterior-wall-myocardial-infarction-and-left-atrial-overload.png\" alt=\"Old anterior wall myocardial infarction and left atrial overload\" width=\"1458\" height=\"675\" \/><figcaption id=\"caption-attachment-38213\" class=\"wp-caption-text\">ECG showing old anterior wall myocardial infarction and left atrial overload<\/figcaption><\/figure>\n<p>Left atrial overload is seen as prominent negative component of P wave in lead V1. There is poor progression of R waves in anterior leads with QS complex in lead V3 and qr in V4. T waves are inverted in leads I, II, aVl and V4 to V6. ST segment is almost isoelectric. These findings together indicate that the myocardial infarction was remote. If the ST segment elevation is persisting for a long period after myocardial infarction, it is considered as a feature of left ventricular aneurysm.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ECG Quiz 14<\/p>\n","protected":false},"author":1,"featured_media":38213,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[6,7],"tags":[],"class_list":["post-319","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>ECG Quiz 14<\/title>\n<meta name=\"description\" content=\"ECG Quiz 14\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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