Pulmonary Hypertension

by Carlo Raj, MD

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    The topic now is Pulmonary Hypertension. As simple as it may seem, it's the fact that you have to dive into quite a bit of detail and the reason for that is because there has been so much research on this over the years because of sequelae of right-sided heart failure, cor pulmonale and death, that now, at this point, we know how to, first, identify normal, completely analyze the pathology through WHO classifications and every single class you will have to know, there's four of them and then management. To begin with, Pulmonary Hypertension, defined as, well, the big one here that you want to know is greater than 25mmHg at rest. So, how would you go about, perhaps, measuring this? How about a right heart catheterization? So, here, when you catheterize the right side and you get from the right ventricle and moved up to you pulmonary artery. Alright, can you picture that? Good. Right ventricle, you have a pressure of approximately 2, very passive, but then you start getting to pulmonary artery, the pressure increases to approximately 10, but at rest, if you find that the pulmonary arterial pressure is greater than 25, guaranteed, your patient has Pulmonary Hypertension. But what caused this? Well, let's continue. The Pulmonary Hypertension may result in arteriosclerosis. What does that mean? Imagine when there is an increase in tension, then what's going to happen? Is this arteriolar is this an arteriole? That is your first question, isn't it? Always. Whenever you deal with blood vessels, you want to try to break it up into the arteries and arterioles and then that will then give you the respected diagnosis. Here, it is arteriosclerosis, most likely, hyaline type. Then you have medial hypertrophy, intima fibrosis of pulmonary arteries and by that we mean...

    About the Lecture

    The lecture Pulmonary Hypertension by Carlo Raj, MD is from the course Respiratory Pathology. It contains the following chapters:

    • Pulmonary Hypertension
    • Classification: Class 1 & 2
    • Classification: Class 3 & 4

    Author of lecture Pulmonary Hypertension

     Carlo Raj, MD

    Carlo Raj, MD

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