Related Experiment Video
Updated: Mar 24, 2026
Controlled Cortical Impact Model for Traumatic Brain Injury
Published on: August 5, 2014
Moderate Traumatic Brain Injury: The Grey Zone of Neurotrauma
Daniel Agustín Godoy1, Andrés Rubiano2, Alejandro A Rabinstein3
1Neurointensive Care Unit, Sanatorio Pasteur, Intensive Care Unit, Hospital San Juan Bautista, Chacabuco 675, 4700, Catamarca, Argentina. dagodoytorres@yahoo.com.ar.
Abstract:
Moderate traumatic brain injury (MTBI) is poorly defined in the literature and the nomenclature "moderate" is misleading, because up to 15 % of such patients may die. MTBI is a heterogeneous entity that shares many aspects of its pathophysiology and management with severe traumatic brain injury. Many patients who ''talk and died'' are MTBI. The role of neuroimaging is essential for the proper management of these patients. To analyze all aspects of the pathophysiology and management of MTBI, proposing a new way to categorize it considering the clinical picture and neuroimaging findings. We proposed a different approach to the group of patients with Glasgow Coma Scale (GCS) ranging from 9 through 13 and we discuss the rationale for this proposal. Patients with lower GCS scores (9-10), especially those with significant space-occupying lesions on the CT scan, should be managed following the guidelines for severe traumatic brain injury, with ICU observation, frequent serial computed tomography (CT) scanning and ICP monitoring. On the other hand, those with higher range GCS (11-13) can be managed more conservatively with serial neurological examination and CT scans. Given the available evidence, MTBI is an entity that needs reclassification. Large-scale and well-designed studies are urgently needed.
Insights
Moderate traumatic brain injury (MTBI) is poorly defined and misleading. This study proposes reclassifying MTBI based on Glasgow Coma Scale scores and CT findings for better patient management.
Area of Science:
- Neuroscience
- Trauma Surgery
- Neurosurgery
Background:
- Moderate traumatic brain injury (MTBI) lacks a clear definition, leading to inconsistent management.
- The term "moderate" is misleading, as MTBI can be fatal in up to 15% of cases.
- MTBI shares pathophysiological and management similarities with severe traumatic brain injury.
Purpose of the Study:
- To analyze the pathophysiology and management of MTBI.
- To propose a new categorization for MTBI based on clinical presentation and neuroimaging.
- To differentiate management strategies for patients with Glasgow Coma Scale (GCS) scores from 9 to 13.
Main Methods:
- Review of literature on MTBI pathophysiology and management.
- Analysis of clinical data including Glasgow Coma Scale (GCS) scores.
- Evaluation of neuroimaging findings, particularly CT scans.
- Proposal of a new classification system for MTBI.
Main Results:
- MTBI is a heterogeneous condition requiring reclassification.
- Patients with GCS 9-10 and space-occupying lesions need severe TBI management protocols.
- Patients with GCS 11-13 may be managed more conservatively with serial monitoring.
Conclusions:
- The current definition and nomenclature of MTBI are inadequate.
- A revised classification integrating GCS and CT findings is proposed.
- Further large-scale studies are essential to validate new MTBI management guidelines.
