16. CSF FINDINGS
Bacterial Viral TB
cell type polys lympho lympho
count > 1000 200-1000 100 – 200
Glucose low normal very low
Protein N-INC N-INC N-INC
G-Stain gen +ve -ve +ve Zn
17. Bacterial Meningitis
• Medical emergency
• Early diagnosis essential
• Immediate optimum treatment
• Intensive supportive therapy
• Rehabilitation
• Prophylaxis to family
• Notification to GP & Public Health
20. Meningococcaemia - poor
prognosis
• Onset of Petechiae within 12 hrs
• Absence of meningitis
• Shock (BP 70 or less)
• Normal or low WCC
• Normal or low ESR
21. Subdural Effusion
• Failure of temp to show progressive
reduction after 72 hours
• Persistent positive spinal cultures after 72 hr
• Occurrence of focal/ persistent convulsions
• Persistence/recurrence of vomiting
• Development of focal neurological signs
• Clinical deterioration after 72 hr especially
ICP
22. Partially treated meningitis
• 50% cases prior antibiotic - alters the
findings in bacterial meningitis -
• Accurate history vital
• CSF mainly lymphocytic [not usual polys]
• Can have normal glucose
• +ve cultures reduced by 30%
• Gram stain reduced by 20%
23. Viral meningitis
• Most common infection of CNS especially in <1yr
• Causes: enterovirus (commonest, meningitis
occurring in 50% of children <3mth ) herpes,
influenza, rubella, echo, coxsackie, EBV,
adenovirus
• Mononuclear lymphocytes in CSF
• Symptomatic treatment. Complications associated
with encephalitis and ICP
24. TB Meningitis
• Usually insidious: difficult to diagnose in early
stages (fever 30%, URTI 20%)
• Rare in children in developed countries
• If untreated is usually fatal
• Meningitis usually occurs 3-6mths after primary
infection
• 1 stage-lasts 1-2wk, fever malaise, headache
• 2 stage-+/- suddenly, meningeal signs
• 3 stage-worsening neurological condition, death
25. Mortality/Morbidity
• Bac meningitis: Overall mortality 5-10%
• Neonatal meningitis: 15-20%
• Older children: 3-10%
• Strep. pneumonia: 26-30%
• H. influenza type B: 7-10%
• N. meningitidis: 3.5-10%
• 30% neurological complications
• 4% Profound b/l hearing loss
(sensorineural) in all bac meningitis
