The elderly (over 60 years old) with ECM about the same period as a whole the number of asylum ECM: 1% 1 2.5%. Because aging and the elderly in the physical and biological changes Cellular immune dysfunction, humoral immunity weakened, the original antibody levels decline, particularly blood-brain barrier function may be - Dan meningococcus invading, we will be able, therefore I have the following characteristics.
(1) rapid onset. Main v. headache fever, onset 6-24 hours with over 60% of the patients unconscious, lying unconscious. Most lack of upper respiratory symptoms.
(2) severe illness. ECM fulminant older accounted for 85 percent, with the majority of meningitis type or mixed type (a coma and shock), both blood pressure drop, convulsion more than can incidence one day in the death.
(3) strong and unconscious a long time. Children and young people in general ECM meningeal irritation sign of the strong for the duration of about 1 days, but the elderly ECM-time average 11 days about children who ECM coma caused less than 10 percent, and the average one day around can clearly, the elderly and lobeline-general to 2.5 days.
(4) complications and more. ECM complications young people who have less than one percent, but almost half of elderly ECM complications. Major merger pneumonia, pulmonary edema, pulmonary infarction, urinary tract infection, viral myocarditis, pyogenic arthritis, otitis media, hearing loss, aphasia, bacillary dysentery, acute renal failure, such as facial paralysis and paraplegia.
(5) high mortality. Up to 20% percent to 30 percent, and non-elderly patients with more ECM very significant difference.
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