Predictors of extraventricular drain-associated bacterial ventriculitis

Area of Science:

• Neuroscience
• Infectious Diseases
• Medical Device Research

Background:

• Bacterial ventriculitis (BV) is a potential complication for patients requiring external ventricular drains (EVDs).
• Identifying predictors of EVD-associated BV is crucial for patient safety and effective management.
• Previous research has explored various risk factors, but the specific impact of procedural frequency requires further investigation.

Purpose of the Study:

• To determine predictors of bacterial ventriculitis (BV) onset in patients with external ventricular drains (EVDs).
• To investigate the association between the frequency of cerebrospinal fluid (CSF) sampling and the incidence of EVD-associated BV.

Main Methods:

• Retrospective review of patients with EVD placement at Duke University Hospital (January 2005 - May 2010).
• Data collection on predefined variables including patient demographics, EVD characteristics, and procedural frequency.
• Statistical analysis using univariate and multivariable modeling to identify significant predictors of BV.

Main Results:

• The incidence of EVD-associated bacterial ventriculitis (BV) was 10.2% in 410 subjects (420 EVDs).
• Multivariable analysis identified the number of cerebrospinal fluid (CSF) samples taken as a significant predictor of BV (OR, 1.08; P = .04).
• Each additional CSF sample increased the likelihood of BV by 8.3%; BV was associated with a longer hospital stay but not mortality.

Conclusions:

• A significant association exists between the frequency of CSF sampling and the development of EVD-associated BV.
• The number of CSF samples taken is a modifiable risk factor that may influence BV development.
• Further prospective studies are warranted to establish causal relationships and guide clinical practice for EVD management.