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Acute Bacterial Meningitides
Bacterial infect CSF via: hematogenous…
Acute Bacterial Meningitides
- Bacterial infect CSF via: hematogenous spread or direct entry into CNS (infection, trauma, surgery)
--> inflammation --> damage BBB
- Symptoms (hours-1 DAY): fever, headache, nuchal rigidity
- Dx: Hx + Sx, culture of CSF, gram stain, CBC, Neuroimaging
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Neonatal
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- Pregnant women
--> Fetus/Neonates
- Immunocompromised
(neoplasm, organ transplant,
glucocorticoid)
- Older adults >50 yr
Listeria Monocytogenes
- Pore forming toxin (escape phagosome)
- Intracellular growth
- Adhesins - cell to cell spread
Causes:
- Vertical transmission
- INGESTION of contaminated food (deli meats, dairy, green bean, cantaloupe, cheese)
Symptoms
Vertical transmission:
Pregnant mother - flu like
Utero - fetal death, pneumonia, sepsis, granuloma
Birth - neonatal meningitis
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EXTRA symptoms:
- Temperature instability
- Irritability
- LETHARGY
- Poor feeding
- Full to bulging fontanelle
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Chronic Bacterial Meningitides:
- Develops over WEEKS - MONTHS
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