## Clinical Presentation Analysis The patient presents with classic meningitis signs: headache, neck stiffness, photophobia, fever, and tachycardia occurring within hours of epidural catheter placement. ### CSF Findings | Parameter | Finding | Interpretation | | --- | --- | --- | | Cell count | Pleocytosis with lymphocytes | Infectious/inflammatory process | | Protein | 120 mg/dL (elevated) | Consistent with meningitis | | Glucose | Normal | Rules out bacterial meningitis (usually low) | | Onset | 45 minutes post-procedure | Rapid progression suggests direct inoculation | **Key Point:** Epidural catheter-related meningitis occurs due to breach of sterile technique, contaminated equipment, or skin flora introduction during placement. The normal CSF glucose with lymphocytic pleocytosis and elevated protein is consistent with aseptic or early bacterial meningitis. **Clinical Pearl:** Post-dural puncture headache (PDPH) is positional, worsens with sitting/standing, improves with lying flat, and does NOT present with fever, neck stiffness, or pleocytosis. Epidural abscess develops over days, not hours, and typically presents with progressive neurological deficits. Epidural hematoma causes acute neurological compression, not meningeal signs. **High-Yield:** Meningitis following epidural anesthesia is rare (0.01–0.1%) but is a medical emergency. Risk factors include: immunocompromise, prolonged catheterization (>48 hours), and poor aseptic technique. Empiric antibiotics (vancomycin + ceftriaxone) must be started immediately after CSF sampling. **Mnemonic: MENINGITIS after epidural** — **M**eningeal signs (headache, neck stiffness, photophobia), **E**levated protein, **N**ormal glucose (early), **I**nfection from catheter, **N**eurological emergency, **G**erm culture needed, **I**mmediate antibiotics, **T**emperature elevation, **I**ncreased WBC, **S**terile technique failure.
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