4.8 • 678 Ratings
🗓️ 12 January 2022
⏱️ 4 minutes
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0:00.0 | Hello and welcome to the Zero to Finals podcast. |
0:08.5 | My name is Tom and in this episode I'm going to be talking to you about labyrinthitis. |
0:13.1 | And you can find written notes on this topic at zero definals.com slash labyrinthitis |
0:18.0 | or in the ear, nose and throat section of the zero definals surgery book. |
0:23.5 | So let's get straight into it. |
0:26.5 | Labrynthitis refers to inflammation of the bony labyrinth of the inner ear, which includes the |
0:32.7 | semicircular canals vestibule, which is the middle section of the labyrinth, and the cochlear. |
0:39.5 | The inflammation is usually attributed to a viral upper respiratory tract infection. |
0:46.0 | Rarely labyrinthitis can be caused by a bacterial infection. |
0:51.0 | This may be an inflammatory response to a nearby infection |
0:54.0 | or the result of bacteria or bacterial toxins entering the labyrinth itself. |
1:01.1 | It's usually secondary to otitis media or meningitis. |
1:05.8 | Let's talk about the presentation. |
1:08.6 | Labyrinthitis presents with acute onset vertigo, similar to |
1:13.3 | vestibular neuronitis. Unlike vestibular neuronitis, labrynthitis can also be associated with hearing |
1:20.9 | loss and tinnitus. Patients may have symptoms associated with the causative virus, such as a cough, sore throat and block nose. |
1:30.8 | So how do you make the diagnosis? A clinical diagnosis is based on the history and examination findings. |
1:38.6 | Whenever a patient presents with vertigo, it's important to exclude a central cause of the vertigo, meaning vertigo caused by |
1:46.2 | a problem in the brain, such as a posterior circulation infarction, which is a type of stroke. |
1:53.0 | The head impulse test can be used to diagnose peripheral causes of vertigo, resulting from |
1:58.9 | problems with the vestibular system, for example, |
2:01.6 | vestibular neuronitis or labyrinthitis. |
... |
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