Related Experiment Video
Updated: May 8, 2026

Neuronavigation and Laparoscopy Guided Ventriculoperitoneal Shunt Insertion for the Treatment of Hydrocephalus
Published on: October 14, 2022
Indications for pediatric external ventricular drain placement and risk factors for conversion to a
Corey T Walker1, Jonathan J Stone, Max Jacobson
1Department of Neurological Surgery, University of Rochester Medical Center, Rochester, N.Y., USA.
Insights
External ventricular drains (EVDs) are common for pediatric hydrocephalus. Trauma is a leading indication, with most patients avoiding long-term shunts, unlike those with neoplasms.
Area of Science:
- Neurosurgery
- Pediatric Neurology
- Critical Care Medicine
Background:
- External ventricular drains (EVDs) are crucial for managing hydrocephalus and monitoring intracranial pressure (ICP) in pediatric patients.
- Understanding the long-term implications of EVD placement is essential for optimizing patient care.
Purpose of the Study:
- To review the indications for EVD placement in pediatric patients over a 20-year period.
- To evaluate the rate of conversion from EVD to ventriculoperitoneal shunt (VPS).
- To determine how hydrocephalus etiology affects long-term drainage requirements.
Main Methods:
- Retrospective review of pediatric patients who received their first EVD between 1990 and 2010.
- Data collected included demographics, hydrocephalus etiology, length of stay, and EVD duration.
- Exclusion of patients with prior ventricular catheters or shunts.
Main Results:
- Trauma (43.3%) and neoplasms (32.2%) were the most frequent indications for EVD placement.
- Approximately 25% of patients required conversion to a VPS for long-term cerebrospinal fluid diversion.
- Patients with traumatic brain injury had a significantly lower risk of VPS conversion (RR=0.18) compared to other etiologies.
Conclusions:
- Traumatic brain injuries and neoplasms are primary indications for pediatric EVDs.
- While neoplasms significantly increase the likelihood of requiring a VPS (RR=3.56), most EVDs in head injury patients are successfully weaned.
- Etiology of hydrocephalus critically influences the need for long-term CSF diversion.
Background/Aims:
The external ventricular drain (EVD) is commonly used for the treatment of hydrocephalus and intracranial pressure (ICP) monitoring. In this study, we retrospectively reviewed indications for EVD placement over the last 20 years in pediatric patients at our institution. Additionally, we evaluated the rate that an EVD needed to be converted to a ventriculoperitoneal shunt (VPS) and ascertained how hydrocephalus etiology impacted long-term drainage requirements.
Methods:
Patients that received an EVD between 1990 and 2010 at our institution were identified using billing codes. Demographics, etiology of hydrocephalus, length of stay (LOS) and EVD duration were recorded. Only patients receiving their first EVD were included; those with any prior ventricular catheter (including prior shunts) were excluded from this study.
Results:
A total of 180 patients underwent first-time placement of an EVD over the 20-year period. Of these, 78.9% were placed on the right side and 81.7% were performed through a frontal burr hole site. The average age of all patients at their initial procedure was 9.3 years (median 9.8; range 0-18), hospital LOS was 22.5 days (median 16; range 1-174) and EVD duration was 7.8 days (median 7; range 1-37). Trauma (43.3%) and neoplasms (32.2%) were the most common indications. Approximately, one quarter of the patients were unable to become EVD independent and, therefore, required a VPS. Only patients receiving an EVD for traumatic brain injury were significantly less likely to be converted to a shunt than other causes of hydrocephalus (relative risk, RR = 0.18, 95% confidence interval, CI = 0.07-0.46). Conversely, patients with neoplasms (RR = 3.56, 95% CI = 1.74-7.31), obstructive hydrocephalus (RR = 5.48, 95% CI = 1.37-22.0) and intraventricular hemorrhage (RR = 9.86, 95% CI = 1.05-92.3) were more likely to need a shunt.
Conclusion:
Traumatic brain injuries and neoplasms represent the most common indications for EVD placement in the pediatric population. While patients with neoplasm were much more likely to need conversion to a VPS for long-term cerebrospinal fluid diversion, the majority of EVDs in patients with head injuries were successfully weaned.
Related Concept Videos
Increased Intracranial Pressure l: Introduction
Mechanical Ventilation I: Indication and Settings
Peritoneal Dialysis II: Peritoneal Dialysis Systems and Complications
Hemodialysis I: Introduction