Benign Paroxysmal Positional Vertigo (BPPV)
Benign Paroxysmal Positional Vertigo (BPPV) is one of the most common causes of vertigo — the sudden sensation that you're spinning or that the inside of your head is spinning. BPPV causes brief episodes of mild to intense dizziness, typically triggered by specific changes in the position of your head.
Understanding BPPV
BPPV is related to the inner ear. Inside your ear is a tiny organ called the vestibular labyrinth, which includes three loop-shaped structures (semicircular canals) that contain fluid and fine, hair-like sensors that monitor your head's rotation. Another structure in your ear, the otolith organs, contains crystals that make you sensitive to gravity. For various reasons, these crystals can become dislodged and move into the semicircular canals, especially while lying down. This movement can cause the inner ear to send false signals to the brain about your body's position, leading to dizziness and vertigo.
Symptoms of BPPV
Symptoms of BPPV can include:
- Dizziness
- A sense that you or your surroundings are spinning or moving (vertigo)
- A loss of balance or unsteadiness
- Nausea
- Vomiting
The symptoms can vary in intensity and usually last less than one minute. Episodes of BPPV can disappear for some time and then recur.
Causes and Risk Factors
While the exact cause of BPPV is often unknown, it can result from:
- A minor to severe blow to the head
- Degeneration of the vestibular system in the inner ear, often related to aging
- Infections of the inner ear
- Disorders that damage your inner ear
Risk factors for BPPV include:
- Age (50 and older)
- Previous head injury
- Osteoporosis
- Migraine headaches
Diagnosis
BPPV is diagnosed through a series of tests that may include:
- The Dix-Hallpike test
- The Roll test
- Imaging tests to rule out other causes
Treatment
Treatment for BPPV is straightforward and usually effective. It includes:
- Epley Maneuver (Canalith Repositioning Procedure)
- Semont Maneuver
- Brandt-Daroff Exercises
In some cases, surgery may be considered if these maneuvers do not alleviate the vertigo.
Living with BPPV
While BPPV can be a recurring condition, it's generally considered not serious and can be managed with treatment. Modifications at home and work, along with careful attention to head movements, can help minimize the impact of BPPV on daily life.