Routine versus clinically indicated cerebrospinal fluid sampling for infection in external ventricular drains: a systematic review.
Helbert de Oliveira Manduca Palmiero, Eberval Gadelha Figueiredo
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In 30 seconds
This systematic review evaluated the effectiveness of routine versus clinically indicated cerebrospinal fluid (CSF) sampling for infection in patients with external ventricular drains (EVDs). Fourteen studies were analyzed, revealing no benefit of routine daily sampling for infection detection or prevention. Infection rates varied from 4.1% to 16.3%, highlighting the need for a selective approach to CSF sampling.
Key findings
- Only 2 studies directly compared routine versus clinically indicated CSF sampling, showing no benefit of routine sampling.
- Infection rates across studies ranged from 4.1% to 16.3%, indicating variability in infection risk.
- Indirect evidence suggested that catheter duration and patient-related factors were more associated with infection risk than sampling frequency.
Why it matters
Understanding the effectiveness of CSF sampling strategies is crucial for optimizing infection management in patients with EVDs. This review suggests that routine sampling may not be necessary, potentially reducing unnecessary procedures and associated risks.