{"version":"1.0","provider_name":"All About Cardiovascular System and Disorders","provider_url":"https:\/\/johnsonfrancis.org\/professional","author_name":"Johnson Francis","author_url":"https:\/\/johnsonfrancis.org\/professional\/author\/jf\/","title":"Electrical alternans in pericardial effusion - All About Cardiovascular System and Disorders","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"UqFUROGVbr\"><a href=\"https:\/\/johnsonfrancis.org\/professional\/electrical-alternans-in-pericardial-effusion\/\">Electrical alternans in pericardial effusion<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/johnsonfrancis.org\/professional\/electrical-alternans-in-pericardial-effusion\/embed\/#?secret=UqFUROGVbr\" width=\"600\" height=\"338\" title=\"&#8220;Electrical alternans in pericardial effusion&#8221; &#8212; All About Cardiovascular System and Disorders\" data-secret=\"UqFUROGVbr\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/johnsonfrancis.org\/professional\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/johnsonfrancis.org\/professional\/wp-content\/uploads\/2015\/05\/Electrical-alternans.jpg","thumbnail_width":1134,"thumbnail_height":553,"description":"Electrical alternans in pericardial effusion is due to swinging of the heart within the fluid filled pericardial cavity. QRS amplitude is larger when the heart is in the direction of the ECG lead axis and shorter when the heart is away."}