Common
causes of vertigo |
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Common causes of
vertigo |
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Dizziness rarely indicates
a serious or life-threatening disease, though it can be very
disabling. Inner ear disorders cause about half of all dizziness
cases. Of these, about half are due to the following fairly
common causes: |
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1. |
Benign Paroxysmal
Positional Vertigo (BPPV). |
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BPPV is the most common cause
of vertigo (sensation of spinning). It refers to the intense,
brief episodes of dizziness associated with moving the head,
often on turning over in bed or sitting up in the morning.
It occurs when particles break loose and fall into the wrong
part of the semicircular canals in the inner ear. This gives
a false sensation of spinning. The cause of BPPV is not known,
but it may be a natural result of aging, and can come with
head trauma. |
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Symptoms |
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Sudden and intense vertigo (sensation of spinning)
provoked by change in head posture |
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Short duration: lasts less than 1 minute |
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Incidence |
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BPPV can be found in any age group, especially
for those who experience post mild head trauma |
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It is the No. 1 cause of dizziness in individual
age 60 or above |
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The incidence is greater in women than men |
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Diagnosis |
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Complete audiological assessments |
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Hallpike test |
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Treatment & Management |
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Canalith
Repositioning |
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2. |
Meniere's Disease |
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Meniere's disease is one
of the disorder of the inner ear, and it may have something
to do with fluid in canals of the inner ear. Meniere's disease
is a "chronic" problem, which means that it lasts
a long time. Although it can be troublesome, Meniere's is
not contagious and it isn't fatal. Attacks usually last from
20 minutes to 2 hours or longer. Following a severe attack,
most people find that they are exhausted and must sleep for
several hours. Meniere's disease usually occurs in only one
ear, and it affects both ears in only about 30% of patients.
The majority of people with Meniere's disease are over 40
years of age, with equal distribution between males and females.
The cause of Meniere's disease is unknown. |
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Symptoms |
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Dizziness: This kind of
dizziness is described as a spinning feeling and may cause
problems with balance like feeling unstable while walking.
Some people feel nauseated and vomit during an attack due
to the spinning feeling. |
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Sensation of fullness in ears |
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Tinnitus (ringing in the ears) |
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Fluctuating hearing loss (low tone) |
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Prevalence |
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Studies have shown that Meniere's disease affects
about 2/1000. |
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the Framingham study found that 2/100 people
believe they have Meniere's disease in the US, suggesting that
there is considerable chance of misdiagnosis. |
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People aged above 40 have higher chance to
be affected. |
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Both women and men have equal chance to be affected. |
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Diagnosis |
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ENT examination |
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Comprehensive audiological assessments |
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Imaging: CT scan or MRI |
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Treatment & Management |
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At present,
there is no cure for Meniere's disease, but there are ways
to manage the condition and help control symptoms: |
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Medication |
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It helps to control the symptoms |
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Diet |
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Since the disease is a result of a problem
with fluid in canals of the inner ear, you may have to limit
your salt intake. Controlling the level of salt in your body
will indirectly control the amount of fluid in the inner ear
canals. |
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Limit the intake of caffeine and alcohol,
and quit smoking if you smoke. Your doctor can prescribe medicines
to help with feelings of dizziness and nausea. These medicines
may cause you to feel sleepy. |
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Hearing aid fitting |
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Hearing aid fitting is necessary for patients with hearing
problems |
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Vestibular rehabilitation program |
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Stress management |
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Since stress may cause an attack, it's
better to learn how to limit the stress in your life or learn
how to deal with stress. |
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Surgery |
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When attacks can't be controlled by diet
or medicines, surgery may be necessary. |
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Attention:
Coping with the attacks |
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During
an attack, you should try to lie flat on a surface that doesn't
move, such as the floor. To cope with the dizziness, keep
your eyes aimed at an object that doesn't move. Don't eat
or drink much, so you will be less likely to vomit. When the
symptoms go away, get up slowly. You may feel very sleepy
and want to sleep for several hours after an attack. If you
keep vomiting for more than 24 hours and can't keep down any
liquids, call your doctor for medicine to help control the
vomiting. |
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3. |
Vestibular Neuronitis |
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It is the second most common
cause of vertigo. The inflammations of the inner ear can cause
sudden, intense vertigo which may persist for several days,
with nausea and vomiting. They can be very disabling, requiring
bed rest. Fortunately, vestibular neuronitis generally subsides
and clears up on its own in 1 to 3 months for approximately
2/3 of patients. The causes can be viral infection or toxic
& allergic agents (seasonal aspects). |
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Part of the above contents is adapted
from the American
Academy of Family Physicians |