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Published on: October 17, 2017
External Ventricular Drain Versus Intraparenchymal Pressure Monitor in Severe Traumatic Brain Injury: A TRACK-TBI
Madeline E Greil1, Jason K Barber1, Nancy R Temkin1,2
1Department of Neurological Surgery, University of Washington, Seattle , Washington , USA.
External ventricular drains (EVDs) and intraparenchymal monitors (IPMs) for intracranial pressure (ICP) monitoring in severe traumatic brain injury (TBI) did not show significant differences in patient outcomes. Device selection may not impact acute hospital or long-term functional recovery in TBI patients.
Area of Science:
- Neurosurgery
- Neurocritical Care
- Trauma Surgery
Background:
- Intracranial pressure (ICP) monitoring is crucial in severe traumatic brain injury (TBI).
- External ventricular drains (EVDs) and intraparenchymal monitors (IPMs) are common ICP monitoring devices with differing functionalities.
- The impact of device selection on patient outcomes in TBI remains debated.
Purpose of the Study:
- To determine if EVDs or IPMs for ICP monitoring are associated with better patient outcomes in severe TBI.
- To compare functional outcomes between patients monitored with EVDs versus IPMs.
Main Methods:
- Prospective enrollment of severe TBI patients (Glasgow Coma Scale 3-8) in the US TRACK-TBI study.
- Comparison of outcomes between patients receiving EVDs or IPMs within 24 hours of arrival.
- Propensity weighting was used to balance groups before outcome analysis.
Main Results:
- No significant difference in 6-month Glasgow Outcome Scale-Extended for TBI (GOSE-TBI) between EVD and IPM groups (median 3 for both).
- Hospital length of stay and 6-month neuropsychological outcomes were similar between groups.
- While more EVD patients were alive at discharge, this difference was not significant after propensity weighting.
Conclusions:
- ICP monitor type (EVD vs. IPM) did not significantly affect 6-month functional outcomes in severe TBI patients.
- The choice between EVDs and IPMs may not influence acute hospital or long-term functional recovery after TBI.
- Further research may clarify optimal ICP monitoring device selection in TBI management.
Related Concept Videos
Traumatic Brain Injury l: Introduction
Increased Intracranial Pressure l: Introduction

