Subacute sclerosing panencephalitis overview: Difference between revisions
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Revision as of 15:29, 14 December 2012
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Subacute sclerosing panencephalitis Microchapters |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Subacute sclerosing panencephalitis is a rare chronic, progressive encephalitis that affects primarily children and young adults, caused by defective measles virus (which can be a result of a mutation of the virus itself). 1 in 100,000 people infected with measles are at risk. SSPE is 'incurable' but the condition can be managed by medication if treatment is started at an early stage. Much of the work on SSPE has been completed by the NINDS.
Causes
Ordinarily, the measles virus does not cause brain damage, but an abnormal immune response to measles or, possibly, certain mutant forms of the virus may cause severe illness and death. This leads to brain inflammation (swelling and irritation) that may last for years.
Risk Factors
SSPE tends to occur several years after an individual has measles, even though the person seems to have fully recovered from the illness. 1 in 100,000 people infected with measles are at risk.
Diagnosis
History and Symptoms
Characterized by a history of primary measles infection before the age of 2 years, followed by several asymptomatic years (6–15 on average), and then gradual, progressive psychoneurological deterioration, consisting of personality change, seizures, myoclonus, ataxia, photosensitivity, ocular abnormalities, spasticity, and coma.
Treatment
Medical Therapy
No cure for SSPE exists. However, certain antiviral drugs may slow the progression of the disease.