Older patients with intraventricular hemorrhage are prone to infection after external ventricular drainage.

Background: External ventricular drainage (EVD) is a life-saving and emergent procedure in neurosurgery. However, infection is the main problem in patients with EVD. The present study aims to analyze the infection rate of patients with EVD and to investigate the factors that contribute to infection and mortality rates.
Methods: The data of patients who underwent emergent EVD procedure between 2018 and 2019 were retrospectively analyzed in this study. The demographic features of the patients were recorded. The correlation between age, gender, indication and duration of EVD, and the infection and mortality rate were investigated.
Results: In this study, 47 patients underwent emergent EVD in two years. Thirty (63.83%) patients were male, and 17 were female with a mean age of 28.02 years. The mean duration of drainage was 6.2 days. Fifty-eight cerebrospinal fluid (CSF) samples were analyzed during the drainage period and CSF culture was positive in 14 (24.14%) samples. The most common microorganism was Staphylococcus epidermidis. The infection rate was high in older and male patients with duration longer than six days. Nine (19.15%) patients died during the treatment period and six of them had IVH.
Conclusion: The duration of EVD should be shorter in patients older than 65 years with the diagnosis of intraventricular hemorrhage, which is mostly related to dea.