ARTERIOVENOUS MALFORMATIONS SYMPTOMS |
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Most people do not realize that they
have an Arteriovenous Malformations unless it hemorrhages enough to produce symptoms. Small
Arteriovenous Malformationss are more likely to hemorrhage. If a hemorrhage occurs, it
produces a sudden, severe headache. The headache may be focused in
one specific area or it may be more general. It can be mistaken for
a migraine in some cases. The headache is accompanied by other
symptoms, such as vomiting, a stiff neck, sleepiness, lethargy,
confusion, irritability, or weakness anywhere in the body. Seizures
occur in about a quarter of Arteriovenous Malformations cases. A person may experience
decreased, double, or blurred vision. Hemorrhaging from an Arteriovenous Malformations is
generally less dangerous than hemorrhaging from an aneurysm, with a
survival rate of 80-90%.
Other symptoms occur less frequently, but sometimes appear alongside
major symptoms such as the sudden severe headache. Additional
warning signs of a bleeding Arteriovenous Malformations are impaired speech or smell,
fainting, facial paralysis, a drooping eyelid, dizziness, and
ringing or buzzing in the ears.
Although large Arteriovenous Malformationss are less likely to hemorrhage, they can induce
symptoms based on their mass alone. Large Arteriovenous Malformationss exert pressure
against brain tissue, cause abnormal development in the surrounding
brain tissue, and slow down or block blood flow. Hydrocephalus, a
swelling of brain tissue caused by accumulated fluids, may develop.
The warning signs associated with a large non-bleeding Arteriovenous Malformations are
similar to the symptoms of a small malformation that is bleeding.
Unexplained headaches, seizures, dizziness, and neurological
symptoms, such as sensory changes, are signals that demand medical
attention. |
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