Neurocritical Care

, Volume 20, Issue 1, pp 49–53 | Cite as

Intermittent Versus Continuous Cerebrospinal Fluid Drainage Management in Adult Severe Traumatic Brain Injury: Assessment of Intracranial Pressure Burden

  • Enyinna L. Nwachuku
  • Ava M. Puccio
  • Anita Fetzick
  • Bobby Scruggs
  • Yue-Fang Chang
  • Lori A. Shutter
  • David O. Okonkwo
Original Article



There is clinical equipoise regarding whether neurointensive care unit management of external ventricular drains (EVD) in severe traumatic brain injury (TBI) should involve an open EVD, with continuous drainage of cerebrospinal fluid (CSF), versus a closed EVD, with intermittent opening as necessary to drain CSF. In a matched cohort design, we assessed the relative impact of continuous versus intermittent CSF drainage on intracranial pressure in the management of adult severe TBI.


Sixty-two severe TBI patients were assessed. Thirty-one patients managed by open EVD drainage were matched by age, sex, and injury severity (initial Glasgow Coma Scale (GCS) score) to 31 patients treated with a closed EVD drainage. Patients in the open EVD group also had a parenchymal intracranial pressure (ICP) monitor placed through an adjacent burr hole, allowing real-time recording of ICP. Hourly ICP and other pertinent data, such as length of stay in intensive care unit (LOS-ICU), Injury Severity Score, and survival status, were extracted from our prospective database.


With age, injury severity (initial GCS score), and neurosurgical intervention adjusted for, there was a statistically significant difference of 5.66 mmHg in mean ICP (p < 0.0001) between the open and the closed EVD groups, with the closed EVD group exhibiting greater mean ICP. ICP burden (ICP ≥ 20 mmHg) was shown to be significantly higher in the intermittent EVD group (p = 0.0002) in comparison with the continuous EVD group.


Continuous CSF drainage via an open EVD seemed to be associated with more effective ICP control in the management of adult severe TBI.


Traumatic brain injury External ventricular drain Intracranial pressure Neuromonitoring Adults 



Mr. Nwachuku was supported by the National Institute of Mental Health (2R25MH054318) and the Brain Trauma Research Center was supported by the National Institute of Neurological Disorders and Stroke (P01 NS030318).

Conflict of interest

All authors involved declare that they have no conflict of interest in regard to any resources used for the study.


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Enyinna L. Nwachuku
    • 1
  • Ava M. Puccio
    • 1
  • Anita Fetzick
    • 1
  • Bobby Scruggs
    • 1
  • Yue-Fang Chang
    • 1
  • Lori A. Shutter
    • 1
    • 2
  • David O. Okonkwo
    • 1
  1. 1.Department of NeurosurgeryUniversity of Pittsburgh Medical CenterPittsburghUSA
  2. 2.Departments of Critical Care Medicine and NeurologyUniversity of Pittsburgh Medical CenterPittsburghUSA

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