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Updated: Feb 10, 2026

Controlled Cortical Impact Model for Traumatic Brain Injury
Published on: August 5, 2014
The impact of methamphetamines in patients with traumatic brain injury, a retrospective review
Jason Duong1, Christopher Elia1, Ariel Takayanagi2
1Department of Neurosurgery, Riverside University Health System, United States.
Objective:
Both neurotoxic and neuroprotective effects of methamphetamines (METH) are being studied. There are few studies evaluating the effects of METH on patients with traumatic brain injury (TBI). The objective of this study is to compare clinical outcomes after TBI in METH users versus non-METH users.
Patient And Methods:
A retrospective review of 304 patients with severe traumatic head injury were performed. Patients were evaluated and stratified based on toxicology screening for methamphetamines (METH) or none. Of the patients reviewed with a full toxicology, 24 of those patients were positive for METH, and 60 patients were negative. Patients were evaluated based on demographics, type of injury, Glasgow Coma Scale (GCS), and Glasgow Outcome Scale (GOS).
Results:
METH patients were younger upon presentation (43.5 versus 55.8, p = 0.003), with a larger improvement in GCS and GOS upon discharge (P = 0.012, 0.0001 respectively). There was no significant difference in length of hospital stay, initial presenting GCS and GOS, or discharge GCS and GOS.
Conclusions:
Our findings demonstrate an improved change in GCS and GOS for those positive with METH than those without. Surprisingly, substance positive patients did not have a worse outcome score. Further investigation is necessary to evaluate the potential neuro-protective effects of METH in TBI.
Insights
Methamphetamine (METH) users with traumatic brain injury (TBI) showed improved Glasgow Outcome Scale scores. This study suggests METH may have neuroprotective effects in TBI patients, contrary to expectations.
Area of Science:
- Neuroscience
- Trauma Surgery
- Clinical Toxicology
Background:
- Methamphetamine (METH) exhibits both neurotoxic and neuroprotective properties.
- Limited research exists on METH's impact on traumatic brain injury (TBI) patients.
- Understanding METH's role in TBI is crucial for patient management.
Purpose of the Study:
- To compare clinical outcomes in TBI patients who use METH versus those who do not.
- To investigate potential neuroprotective effects of METH in the context of TBI.
Main Methods:
- Retrospective review of 304 severe traumatic head injury patients.
- Stratification based on toxicology screening for METH (24 positive, 60 negative).
- Evaluation of demographics, injury type, Glasgow Coma Scale (GCS), and Glasgow Outcome Scale (GOS).
Main Results:
- METH users were younger (43.5 vs. 55.8 years, p=0.003).
- METH users demonstrated greater improvement in GCS and GOS (p=0.012, p=0.0001).
- No significant differences in hospital stay or initial/discharge GCS/GOS scores were observed.
Conclusions:
- TBI patients positive for METH showed enhanced GCS and GOS changes.
- Contrary to hypotheses, METH-positive patients did not exhibit worse outcomes.
- Further research is warranted to explore METH's potential neuroprotective role in TBI.
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