What happens in BPPV/ vertigo and what are the causes?

What happens in BPPV/ vertigo and what are the causes?

BPPV/ vertigo

BPPV is the most common form of vertigo (32%). It is called as Benign Positional Paroxysmal Vertigo. Simply put, the crystals (otoconia) from the  bags (otolith) somehow find their way into the semicircular canals. This sends altered sensory inputs to the brain and in turn, the brain sends input to eye muscles which causes the eyeballs to move in different directions (Nystagmus). This causes an illusion of movement of the surroundings. A detailed patient interview will determine if it is BPPV or not. Your description of symptoms can be extremely helpful in diagnosing this problem.

Causes:

  1. Unknown
  2. More likely to occur over the age of 50 years
  3. Head trauma in younger population –knocks the crystals off
  4. Other theories- Vitamin D Deficiency and calcium metabolism
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