1.0Best Heart Surgery Hospitalshttps://www.bestheartsurgery.com/blogdrheartcarehttps://www.bestheartsurgery.com/blog/author/drheartcare/rich600338<blockquote class="wp-embedded-content" data-secret="VjPCHxbWnp"><a href="https://www.bestheartsurgery.com/blog/endocardium-definition-clinical-significance-and-overview/">Endocardium: Definition, Clinical Significance, and Overview</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.bestheartsurgery.com/blog/endocardium-definition-clinical-significance-and-overview/embed/#?secret=VjPCHxbWnp" width="600" height="338" title="“Endocardium: Definition, Clinical Significance, and Overview” — Best Heart Surgery Hospitals" data-secret="VjPCHxbWnp" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !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); //# sourceURL=https://www.bestheartsurgery.com/blog/wp-includes/js/wp-embed.min.js /* ]]> */ </script> Endocardium is the thin inner lining of the heart chambers and heart valves. It is a cardiac anatomy term that also matters in cardiovascular pathology. It is commonly discussed in echocardiography, cardiology exams, and cardiac surgery notes. It helps explain conditions like infective endocarditis, intracardiac thrombus, and valve dysfunction.