Term
| What are the two major causes of BPPV? |
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Definition
| Canalisthiasis and Cupulolisthiasis |
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Term
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Definition
| Calcium carbonate crystals are freely floating within the canal that stimulate receptors inappropriately. The otoconia float around in the fluid and sink down into hair cells. |
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Term
| What are the Sx of canalisthiasis? |
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Definition
| Delay in onset of sx from 1-40 seconds (it takes time for otoconia to float thru fluid onto hair cells), nystagmus appears and lasts as long as vertigo does, and there maybe fluctuation in intensity of vertigo. Sx disappear within 1 minute. |
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Term
| Which is more common; canalisthiasis or cupulolisthiasis? |
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Definition
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Term
| What is cupulolisthiasis? |
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Definition
| Otoconia crystals have adhered to the cupula; they're not free-floating. So when the head moves there is an instant onset of symptoms. |
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Term
| what are the cupulolisthiasis Sx? (4) |
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Definition
| 1. Exaggerated response to movement b/c there's more weight than usual on teh hair cells (faster, stronger, longer response than canalisthiasis). 2. Immediate onset of vertigo. 3. Nystagmus associated w/ Sx; same duration and onset. 4. Persistence of Sx while pt is maintained in the position. |
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Term
| Do you Tx BPPV in same or opposite direction that elicits Sx? |
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Definition
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Term
| What are the diagnostic tests for BPPV? |
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Definition
| Post canal (Hallpike Dix), Horizontal Canal (Roll Test). |
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Term
| While performing the Roll Test, when you turn the pt to the R Sx are elicited. Is the L or R canal affected? |
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Definition
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Term
| Would you expect Sx to be worse to the affected side or unaffected side? |
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Definition
| Sx will be worse and longer in duration on the affected side. |
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Term
| What Tx should you use for canalisthiasis? |
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Definition
| Canalith repositioning Tx. |
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Term
| What Tx should you use for cupulolisthiasis? |
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Definition
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Term
| Describe the liberatory maneuver for cupulolisthiasis. |
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Definition
| Sitting, turn head 45* to unaffected side. Move quickly to sidelying on affected side until Sx disappear, then quickly moved to unaffected side until Sx disappear, then slowly back to sitting. (Nose up -> nose down) |
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Term
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Definition
| Pt in long sitting, turn head 45* toward affected side. Move quickly to supine while maintaining head rotation. Then rotate head to other side, then sidelying to face 45* to floor, then sitting again. |
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Term
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Definition
| Pt supine w/ affected ear toward ground. Then nose up, then nose left, then nose down, then affected ear to ground again. Sit. |
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Term
| What is the cervical ocular reflex? |
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Definition
| Coordinates eye movement w/ rotation of the neck. |
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Term
| What is COR training specifically used to treat? |
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Definition
| Bilateral vestibular loss. |
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Term
| Unilateral vestib loss is treated using which Tx method? |
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Definition
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Term
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Definition
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