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Vertigo: Introduction

by Carlo Raj, MD
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    In this section, we’ll take a look at vertigo, dizziness, and syncope. Let’s begin. Vertigo with dizziness. Dizziness, what is it? Vague term with many meanings in different people. Lightheadedness perhaps, disequilibrium, unsteadiness, vertigo. But what is actual vertigo? A hallucination of self or environmental movement. Most commonly rotational, but can be linear. Usually indicates acute asymmetry between the vestibular nuclei. Ever seen a car and you see the car the next to you that’s moving and you feel like, “Oh, my goodness! I forgot to put my foot on the break,” as an example. Tinnitus: Spontaneous perception of sound, typically ringing or buzzing. And with tinnitus, remember, you could have a particular a brain tumor we talked about, a primary brain tumor known as schwannoma, which is an acoustic neuroma. Anything that may cause disruption to the eighth cranial nerve perhaps, resulting in this altered perception of sound. The differentials for vertigo: spontaneous, single prolonged episode, maybe it’s the damage to the vestibular neuronitis or to the nerve of it. Or what about the labyrinthine? In other words, think about the labyrinthine that we have in our middle ear, huh? Unbelievable that’s it’s able to then move from the middle ear to the inner ear. We go from that type of percussion and then it then travels through a fluid. Every single time I think about it, it’s amazing. Anyhow, labyrinthine concussion or lateral medullary or cerebellar infarction. Spontaneous vertigo. Recurrent episodes. This maybe could be found with Ménière's disease, Ménière's disease. We have perilymphatic fistula, migraines, and we have postural circulation type of ischemia. Positional vertigo: Peripheral. We have something called benign positional paroxysmal vertigo, BPPV. Central: Stroke, tumor, or your multiple sclerosis plaques. Remember these? Demyelinating, especially around the ventricles, may then follow the paraventricular veins. I’m...

    About the Lecture

    The lecture Vertigo: Introduction by Carlo Raj, MD is from the course Vertigo and Dizziness. It contains the following chapters:

    • Vertigo, Dizziness, and Syncope
    • Vertigo: Differential

    Author of lecture Vertigo: Introduction

     Carlo Raj, MD

    Carlo Raj, MD


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