MICR 121 Lecture Notes - Lecture 19: Community-Acquired Pneumonia, Streptococcus Pneumoniae, Viral Meningitis
14 Apr 2018
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Document Summary
Look at csf to determine if the meninges are infected. Infection/ inflammation of the meninges, the protective lining that protects the brain and spinal cord. 70% of meningitis cases occur in the first 5 yers of life: bacterial meningitis acute, life threatening, aseptic/ viral meningitis usually self- limiting clinical symptoms of meningitis include nuchal rigidity, headache, confusion, drowsiness. Inflammation conditions of the cns encephalitis: inflammation of brain tissue most often viral infections: meningoencephalitis: (cross-over) inflammation of meninges + brain inflammation of the bone. Pathogens take up factors within the brain as they replicate (e. g. take up glucose) and produce things llke gas. This can increase intracranial pressure, worsening bran edema, decreased cbf. Pathogens: s. pneumoniae, n. meningitidis, h. influenza all have vaccines to prevent (so not common anymore) Incidence is quite high (1 case per 1000 births) but not all of them will go on to develop meningitis.
