Purulent meningitis management
1. Initial Measures
- Ensure ABCs (Airway, Breathing, Circulation)
- Start empirical IV antibiotics immediately after blood cultures:
- Ceftriaxone or cefotaxime + vancomycin
- Add ampicillin if *Listeria* is suspected (elderly, neonates, immunocompromised)
- Administer dexamethasone (10 mg IV q6h) ideally before or with first antibiotic dose
2. Diagnostic Workup
- Blood cultures x2
- Lumbar puncture (LP), unless contraindicated:
- CSF: cell count, glucose, protein, Gram stain, culture, PCR
- CT/MRI before LP if:
- Altered mental status
- Focal neurologic signs
- Signs of raised intracranial pressure
3. Supportive Care
- ICU monitoring for severe cases
- IV fluids and antipyretics
- Anticonvulsants if seizures
- ICP management (mannitol, hypertonic saline, EVD)
4. Targeted Antibiotic Therapy
- Adjust based on culture and sensitivity
- Duration:
- *N. meningitidis*: 5–7 days
- *H. influenzae*: 7–10 days
- *S. pneumoniae*: 10–14 days
- *Listeria*, *Gram-negatives*: ≥21 days
5. Management of Complications
- Hydrocephalus → consider EVD or ventriculoperitoneal shunt
- Sensorineural hearing loss → audiology referral
- Neurological deficits → rehabilitation, follow-up
Related topics:
- Bacterial meningitis
- External ventricular drainage
- CSF analysis