{"version":"1.0","provider_name":"Best Heart Surgery Hospitals","provider_url":"https:\/\/www.bestheartsurgery.com\/blog","author_name":"drheartcare","author_url":"https:\/\/www.bestheartsurgery.com\/blog\/author\/drheartcare\/","title":"CRT D: Definition, Clinical Significance, and Overview - Best Heart Surgery Hospitals","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"PkvyACEAhB\"><a href=\"https:\/\/www.bestheartsurgery.com\/blog\/crt-d-definition-clinical-significance-and-overview\/\">CRT D: Definition, Clinical Significance, and Overview<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.bestheartsurgery.com\/blog\/crt-d-definition-clinical-significance-and-overview\/embed\/#?secret=PkvyACEAhB\" width=\"600\" height=\"338\" title=\"&#8220;CRT D: Definition, Clinical Significance, and Overview&#8221; &#8212; Best Heart Surgery Hospitals\" data-secret=\"PkvyACEAhB\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\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:\/\/www.bestheartsurgery.com\/blog\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","description":"Cardiac resynchronization therapy with defibrillator (CRT D) is an implantable cardiac device used in selected patients with heart failure and electrical dyssynchrony. It combines biventricular pacing (resynchronization) with an implantable cardioverter-defibrillator (ICD) function. CRT D is a therapy and device-based intervention in electrophysiology and heart failure care. It is commonly used in patients with reduced left ventricular ejection fraction (LVEF) and a widened QRS complex on electrocardiogram (ECG)."}