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 |