Meningitis Flashcards
Meningism refers to a symptom complex covering
Headache, Photophobia and Vomiting with Muscle Spasm
What type of headache/bleed can cause Meningism
Subarachnoid Haeemorhage
What type of neck stiffness is class for meningism
Passive Neck Flexion Stiffness
What constitutes the leptomeninges
pia and arachnoid
Infections from middle ear may extend into
Temporal Lobe
Pathogenesis of Meninigits 5 Steps
- Attachment into Mucosal Epithelial Cells
- Transgression of Mucosal Barrier
- Survival in Blood Stream
- Entry into CSF
- Production of infection in Meninges with or without brain infection (encephalitis)
Which bacteria may cause bacterial meningitis in neonates
e coli
group b streptococci
which bacteria may cause bacterial meningitis in children and adults
neisseria meningitides or streptococcus pneumonia
10-30% of patients with ventriculo-atrial/peritoneal shunts develop
ventriculitis and meningitis
For patients with ventriculo-atrial/peritoneal shunts who develop ventriculitis and meningitis which bacteria is it
coagulase neg staphylococci eg staph epidermidis
How is aseptic meningitis confirmed
cytology of CSF
Risk factors for Meningitis
Alcohol
Recent skull trauma
diabetes
Hypotension of Systolic <90 suggests
septic shock
Cranial Nerve palsies are typical of what type of meningitis
Tuberculosis or Cryptoccal Meningitis
Papilloedema is unusual in Meningitis. what would you consider instead?
intracranial space occupying lesion
Traditional physical signs in Meningitis
Kernig Sign
Flex Neck
What is Kernig Sign
Hip Flexed
Patient cannot straighten leg due to hamstring spasm in meningism
For patients with focal neurological signs or papilloedema what to do instead of lumbar puncture
ct head scan
when is lumbar puncture contraindicated
space occupying lesion
What is found in CSF in true meningitis
elevated white cells
Which cell type present in CSF for bacterial meningitis
Neutrophils