Use of Intracranial Pressure Monitoring in Patients with Severe Traumatic Brain Injury

Abstract

The Brain Trauma Foundation (BTF) recommends intracranial pressure (ICP) monitoring for all salvageable patients with an abnormal computed tomography (CT) scan and a Glasgow Coma Scale <9. Studies have shown that compliance with this recommendation is low. We sought to obtain contemporary national rates of ICP monitor placement in patients with severe traumatic brain injury (TBI). Patients from the National Trauma Data Bank from 2013 to 2017 who met BTF criteria for ICP monitoring were included. Placement of an intraparenchymal ICP monitor or an external ventricular drain was queried. Binary logistic regression was used to determine factors that influenced the placement of an ICP monitor. A total of 21,374 patients with severe TBI and an abnormal CT scan were included in the study. An ICP monitor was placed in 6543 patients (30.6%). ICP monitor placement increased modestly from 28.6% in 2013 to 32.8% in 2017. The pooled odds of ICP monitor placement between 2014 and 2017 were not different from 2013 (odds ratio, 1.04; 95% confidence interval, 0.99-1.09), but the adjusted odds of ICP monitor placement in 2017 were significantly greater (odds ratio, 1.18; 95% confidence interval, 1.06-1.30). Treatment at a teaching hospital, subdural hematoma, multiple intracranial abnormalities on CT, and greater Injury Severity Score were associated with ICP monitor placement, whereas older age was negatively associated with ICP monitor placement. The rate of ICP monitoring in patients with severe TBI who meet BTF criteria is low and increased only slightly from 2013 to2017.