{"id":3067,"date":"2009-09-18T14:01:38","date_gmt":"2009-09-18T14:01:38","guid":{"rendered":"http:\/\/cardiophile.org\/?p=3067"},"modified":"2023-11-29T06:45:07","modified_gmt":"2023-11-29T01:15:07","slug":"right-atrial-overload-and-right-ventricular-hypertrophy","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/professional\/right-atrial-overload-and-right-ventricular-hypertrophy\/","title":{"rendered":"Right atrial overload and right ventricular hypertrophy"},"content":{"rendered":"<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/DM6_Lwfl9ac?si=E3Vuq2hKRn6hdFjS\" 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;\">Right atrial overload and right ventricular hypertrophy<\/span><\/h2>\n<figure id=\"attachment_26919\" aria-describedby=\"caption-attachment-26919\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-26919 size-full\" src=\"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2009\/09\/RAD-RAO-RVH.jpg\" alt=\"Right atrial overload and right ventricular hypertrophy\" width=\"1000\" height=\"394\" \/><figcaption id=\"caption-attachment-26919\" class=\"wp-caption-text\">Right atrial overload and right ventricular hypertrophy<\/figcaption><\/figure>\n<p>Right atrial overload is manifest as tall sharp P waves in lead II and V1. The cut off values are P wave amplitude more than 0.25 mV in lead II and 0.1 mV in V1. Dominant R waves in V1 and deep S waves in V6 indicate right ventricular hypertrophy. Sokolow-Lyon criteria for RVH mentions that R wave in V1 + S wave in V5\/V6 should be 1.1 mV or more. There is also a clockwise rotation in the QRS pattern between V1 to V6. QRS axis is around +120 degrees with aVR biphasic and lead III showing tallest QRS complex. Right axis deviation is also due to right ventricular hypertrophy. T wave inversion in inferior leads and V1 could be due to right ventricular hypertrophy itself.<\/p>\n<p>RVH in this case is type A with dominant R in V1 and deep S in V6. This type is seen in pulmonary stenosis. Type B RVH shows dominant R waves in V1 without deep S in V6. Deep S in V6 without dominant R in V1 seen in chronic obstructive lung disease with cor-pulmonale is called type C RVH. Strictly speaking the types are classified depending upon vector cardiographic features and not based on scalar ECG.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ECG showing right atrial overload and right ventricular hypertrophy.<\/p>\n","protected":false},"author":1,"featured_media":16915,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[6,7],"tags":[],"class_list":["post-3067","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 v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Right atrial overload and right ventricular hypertrophy<\/title>\n<meta name=\"description\" content=\"ECG showing right atrial overload and right ventricular hypertrophy.\" \/>\n<meta name=\"robots\" content=\"index, follow, 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