Vasculitis Syndromes Brochure 508comp

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Vasculitis FS (E).indd 1

Vasculitis Syndromes
of the Central and Peripheral
Nervous Systems

U.S. DEPARTMENT OF HEALTH
AND HUMAN SERVICES
Public Health Service
National Institutes of Health

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Vasculitis Syndromes of
the Central and Peripheral
Nervous Systems
What is vasculitis?

V

asculitis is an inflammation of blood
vessels, which includes the veins, arteries,
and capillaries. Depending on the type,
vasculitis can affect blood vessels of any type,
size, or location. Inflammation occurs with
infection or is thought to be due to a faulty
immune system response. Dysfunction may
occur due to the inflammation itself or over
time as the blood vessel walls swell, harden,
thicken, and develop scar tissue. This narrows
the passage through which blood can flow.
As the condition progresses, it can slow or
completely stop the normal flow of blood.
How does vasculitis affect the
nervous system?

V

asculitis can cause problems in any organ
system, including the central (CNS) and
peripheral (PNS) nervous systems. Vasculitic
disorders, or syndromes, of the CNS and PNS
are characterized by the presence of inflam­
matory cells in and around blood vessels,
and secondary narrowing or blockage of the
blood vessels that nourish the brain, spinal
cord, or peripheral nerves. Any type or size
of blood vessel may be involved—arteries,
arterioles, veins, venules, or capillaries.

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What are the symptoms?

A

vasculitis syndrome may begin suddenly
or develop over time. Symptoms include:

• headaches, especially a headache that
doesn’t go away
• fever
• malaise (feeling out-of-sorts)
• rapid weight loss
• confusion or forgetfulness leading to
dementia
• aches and pains in the joints and muscles
• pain while chewing or swallowing
• paralysis or numbness, usually in the
arms or legs
• visual disturbances, such as double vision,
blurred vision, or blindness
• seizures, convulsions
• stroke or transient ischemic attack (TIA,
sometimes also called a “mini-stroke”)
• unusual rashes or skin discoloration
• problems with the kidneys or other organs
How are these syndromes diagnosed?

A

doctor who suspects CNS or PNS
vasculitis will gather a comprehensive
medical history of the individual, perform
a physical examination, order laboratory
tests (primarily blood tests), and recommend
any other tests that seem appropriate. Elec­
tromyography and nerve conduction studies
identify blocks and loss of nerve supply to
muscle due to vasculitic nerve damage.
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Diagnostic imaging of the brain blood vessels
such as magnetic resonance or computed
tomography angiograms can sometimes
identify narrowing in the larger blood vessels.
Direct injection of a contrast dye into brain
blood vessels may be needed to look for
narrowings consistent with vasculitis in
medium-sized brain arteries.
However, the diagnosis of vasculitis often
requires evidence that there is ongoing
inflammation. Inflammatory cells may be
found in the spinal fluid. Often there is a need
to conduct a tissue biopsy to examine blood
vessels under a microscope. In some cases a
brain biopsy may be necessary to evaluate the
compromised tissue. A definitive diagnosis
is important because the treatment usually
requires powerful immune-suppressive drugs.
In addition, it is important to make sure that
an infection is not causing the inflammation.
What are some of these syndromes called?

T

he diagnosis of a CNS or PNS vasculitis
disorder will depend upon the number of
blood vessels involved, their size, and their
location in the CNS or PNS as well as the
types of organs involved. Although these
disorders are rare, there are many of them.
Some of the better understood syndromes are:
Temporal arteritis (also called giant cell
arteritis or cranial arteritis)
Temporal arteritis is a common chronic
inflammatory disease of large blood vessels
occurring primarily in people 50 and older. It
most often involves narrowing and sometimes
blockage of the arteries that bring blood to
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the brain. Doctors will diagnose temporal
arteritis if at least three of the following
symptoms are present:
• new, severe headache
• visual disturbances
• pain in the jaw or tongue when chewing
or swallowing
• tenderness in the temporal arteries
(the arteries that run across the temples
on either side of the head) or the scalp
Fever, weight loss, and neck or muscle pain
can occur, usually in the early phase of the
disease. Individuals may also have arthritis;
carpal tunnel syndrome; fatigue; and weak­
ness, paralysis, or numbness in isolated
muscles. The disease is usually limited to
one to two years and is rarely fatal.
Abrupt but reversible blindness is the most
dramatic complication of temporal arteritis.
About one in ten individuals with temporal
arteritis will develop blindness in one eye,
preceded by visual disturbances. Once one
eye is affected, three out of four individuals
will go on to lose vision in the other eye,
most in two weeks or less.
The main goal of treatment for temporal
arteritis is to prevent blindness. Most indi­
viduals respond well to steroid drugs, such
as prednisone and methylprednisolone, but
they must be given promptly and carefully
monitored. Long-term use of steroids can
cause harmful side effects, such as collapsing
vertebrae, muscle pain, diabetes, cataracts,
and infection.
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Primary angiitis of the CNS
(granulomatous angiitis)
The symptoms of this rare disorder develop
slowly. Symptoms include headache and
encephalopathy-like symptoms such as dementia
and tremor. Stroke, TIA, and seizures can occur.
Definitive diagnosis may require brain biopsy.
Treatment includes steroid and immunosup­
pressive drugs, such as prednisolone and
cyclophosphamide. It is fatal if left untreated.
Takayasu’s disease
This disease affects large arteries such as
the aorta, which brings blood to the arms,
legs, and head. It primarily strikes individuals
of Asian descent and predominantly affects
females under the age of 40. The main symp­
toms are fainting and visual disturbances
and it may also cause stroke. Although the
disorder is serious, the prognosis is positive:
more than 90 percent of those diagnosed
with Takayasu’s disease survive beyond a
decade after diagnosis. Steroid drugs are
used in the early phase of the disease, but
some individuals become steroid-resistant
and have to switch to cyclophosphamide
or low-dose methotrexate.
Periarteritis nodosa
The onset of this rare and serious disease is
generally between the ages of 40 and 50, but
it can occur at any age. Men are three times
more likely to develop the disease than women.
Symptoms can mimic those of many other
diseases, but the most common initial com­
plaints are fever, abdominal pain, numbness
or pain in the legs and limbs, weakness, and
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unexplained weight loss. As the disease pro­
gresses, the kidneys may fail and high blood
pressure may develop rapidly. Certain drugs
(for example, those in the sulfa family), vac­
cines, bacterial infections, and viral infections
have been associated with the onset of the
disease. Damage to the PNS with neuropathy
is more common than damage to the CNS, but
if the disease does involve the CNS, damage
to brain and spinal cord tissue can occur.
The disease is treated aggressively with high
doses of steroids and immunosuppressive drugs
such as cyclophosphamide. Eighty percent
of individuals who receive appropriate treat­
ment are alive five years later. Untreated
disease is often fatal, ending in heart failure,
kidney failure, or failure of other vital organs.
Are there additional vasculitis disorders
that can cause neurological symptoms?

O

ther vasculitis syndromes include
Kawasaki disease, which can cause
stroke or encephalopathy in children; ChurgStrauss syndrome; Wegener’s granulomatosis;
systemic lupus erythematosis; scleroderma;
rheumatoid arthritis; Sjogren’s syndrome;
and Behcet’s disease.
What research is being done to better
understand these syndromes?

T

he National Institute of Neurological Dis­
orders and Stroke (NINDS), a component
of the National Institutes of Health (NIH),
and other NIH institutes conduct research
relating to vasculitis syndromes in laborato­
ries at the NIH and also support vasculitis
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research through grants to major medical
institutions across the country.
The NINDS supports The Vasculitis Clinical
Research Consortium (VCRC), a network of
academic medical centers, patient support
organizations, and clinical research resources
dedicated to conducting clinical research
and improving the care of individuals with
vasculitis, including Wegener’s granulomato­
sis, microscopic polyangiitis, Churg-Strauss
syndrome, polyarteritis nodosa, Takayasu’s
arteritis, and temporal arteritis. The medical
centers are located at Boston University School
of Medicine, Cleveland Clinic Foundation,
The Johns Hopkins Vasculitis Center, and
Mayo Clinic College of Medicine. The Con­
sortium’s internet site provides information
about clinical research and clinical trial
opportunities and helps individuals connect
with expert doctors and patient support groups.
Where can I get more information?

F

or more information on neurological
disorders or research programs funded
by the National Institute of Neurological
Disorders and Stroke, contact the Institute’s
Brain Resources and Information Network
(BRAIN) at:
BRAIN
P.O. Box 5801
Bethesda, MD 20824
800-352-9424
www.ninds.nih.gov

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Information also is available from the
following organizations:
American Autoimmune Related
Diseases Association
22100 Gratiot Avenue
East Detroit, MI 48021-2227
586-776-3900
800-598-4668
www.aarda.org
National Organization for Rare
Disorders (NORD)
P.O. Box 1968
(55 Kenosia Avenue)
Danbury, CT 06813-1968
203-744-0100 Voice Mail
800-999-NORD (6673)
www.rarediseases.org
National Eye Institute (NEI)
National Institutes of Health, DHHS
31 Center Drive, Rm. 6A32 MSC 2510
Bethesda, MD 20892-2510
301-496-5248
www.nei.nih.gov
National Institute of Allergy and Infectious
Diseases (NIAID)
National Institutes of Health, DHHS
6610 Rockledge Drive, MSC 6612
Bethesda, MD 20892-6612
301-496-5717
www.niaid.nih.gov

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Prepared by:
Office of Communications and Public Liaison
National Institute of Neurological
Disorders and Stroke
National Institutes of Health
Department of Health and Human Services
Bethesda, Maryland 20892 -2540

NIH Publication No. 11- 5596

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July 2011

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