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Cerebral Aneurysm: Introduction

by Carlo Raj, MD
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    Hello and welcome to cerebral aneurysms. In order for us to fully comprehend cerebral aneurysms, it’s important that you understand the anatomy of your circle of Willis. And when, here, we refer to aneurysms, we’ll be strictly looking at the circle of Willis and so therefore the caliber of your blood vessels will be a little larger. You’ll see what I’m referring to. Let’s begin. So here’s the circle of Willis and I'm not going to through the details obviously. However, a few things that I wish to bring to your attention. I want you to pay special attention to anterior communicating artery and the reason for that is because if there are aneurysms – What does an aneurysm mean to you? It’s a ballooning or expansion of your blood vessel, correct? And if there’s an aneurysm, at any point in time, you’re always worried about an increase in tension and pressure, resulting in a possible tear. And that’s where we’re headed eventually, aren’t we? The reason that I bring anterior communicating artery to your attention is because, let’s say, 40 to 60% of your aneurysms will be taking place in the anterior portion of the circle of Willis. And you should very well know that. Apart from that, we have the large middle cerebral artery. We have spent time with that earlier when we talked about strokes. And then I want you to focus upon the basilar artery. And from the basilar artery down below, we have the posterior inferior cerebellar artery. All of these of course incredibly important when we’re dealing with strokes. Each one of these will give you different symptoms in your patient. With the berry aneurysm is what we look at here. It’s also called a saccular aneurysm. And by saccular, we mean that the...

    About the Lecture

    The lecture Cerebral Aneurysm: Introduction by Carlo Raj, MD is from the course Cerebral Aneurysm (Intracranial Aneurysm).


    Included Quiz Questions

    1. Junction of anterior cerebral artery and middle cerebral artery
    2. Junction of middle cerebral and posterior cerebral artery
    3. Junction of posterior communicating and posterior cerebral artery
    4. Junction of basillar and posterior cerebral artery
    5. Junction of basillar and posterior inferior cerebellar artery
    1. Saccular
    2. Serpentine
    3. Fusiform
    4. Cylindrical
    5. Racemose
    1. Subarachnoid hemorrhage
    2. Focal ischemic stroke
    3. Global ischemic stroke
    4. Hypothalamic bleed
    5. Hemorrhage into the pituitary gland
    1. Examination of the pupil
    2. Examination of the pressure in the anterior chamber
    3. Examination of the conjunctiva
    4. Examination of medial canthus of the eye
    5. Examination of the lid
    1. Right pupil is unreactive with motor dysfunction
    2. Right pupil is reactive with motor dysfunction
    3. Left pupil is reactive with motor dysfunction
    4. Left pupil is unreactive without motor dysfunction
    5. Right pupil is reactive without motor dysfunction
    1. Day 1
    2. Day 5
    3. Day 10
    4. Day 15
    5. Day 20

    Author of lecture Cerebral Aneurysm: Introduction

     Carlo Raj, MD

    Carlo Raj, MD


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