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Updated: Jun 2, 2026

Controlled Cortical Impact Model for Traumatic Brain Injury
Published on: August 5, 2014
Decompressive craniectomy: surgical control of traumatic intracranial hypertension may improve outcome
Barbara M Eberle1, Beat Schnüriger, Kenji Inaba
1Department of Surgery, Division of Acute Care Surgery (Trauma, Emergency Surgery and Surgical Critical Care), Los Angeles County and University of Southern California Medical Center, United States.
Insights
Decompressive craniectomy (DC) effectively reduces intracranial pressure (ICP) in patients with severe brain swelling. While DC improves survival rates, the timing of the procedure does not clearly impact neurological outcomes.
Area of Science:
- Neurosurgery
- Trauma Surgery
- Critical Care Medicine
Background:
- Intractable intracranial hypertension (ICH) is a critical complication following severe traumatic brain injury.
- Decompressive craniectomy (DC) is a surgical option for managing refractory ICH.
- The efficacy of DC in patients without an evacuable intracerebral hemorrhage requires further investigation.
Purpose of the Study:
- To evaluate the effectiveness of decompressive craniectomy (DC) in patients experiencing post-traumatic intractable intracranial hypertension (ICH).
- To assess the impact of DC on intracranial pressure (ICP), functional outcomes, and survival rates.
- To determine if the timing of DC influences patient outcomes.
Main Methods:
- Retrospective analysis of patients undergoing DC for post-traumatic brain swelling or ICH without space-occupying hemorrhage.
- Data collection from LAC+USC Medical Centre between 2004 and 2008.
- Analysis of ICP changes, functional outcomes (Glasgow Outcome Scale), and survival based on timing of DC.
Main Results:
- Decompressive craniectomy significantly reduced ICP in both survivors and non-survivors.
- The overall survival rate was 74.4%, with 41.9% achieving a favorable neurological outcome (GOS 4-5).
- No clear correlation was found between the timing of DC and the incidence of favorable outcomes or mortality.
Conclusions:
- Decompressive craniectomy is effective in lowering ICP and improving cerebral perfusion pressure (CPP) in survivors.
- The timing of DC does not appear to be a critical factor for neurological outcome or survival.
- The study suggests a promising survival rate and favorable outcome percentage for DC in selected TBI patients.
Introduction:
The purpose of this study was to assess the role of decompressive craniectomy (DC) inpatients with post-traumatic intractable intracranial hypertension (ICH) in the absence of an evacuable intracerebral haemorrhage.
Methods:
Retrospective study at LAC+USC Medical Centre including patients who underwent DC for post-traumatic malignant brain swelling or ICH without space occupying haemorrhage, during the period 01/2004 to 12/2008. The analysis included the effect of DC on intracranial pressure (ICP) and timing of DC on functional outcomes and survival.
Results:
Of 106 patients who underwent DC, 43 patients met inclusion criteria. Of those, 34 were operated within the first 24 h from admission. DC decreased the ICP significantly from 37.8 ± 12.1 mmHg to 12.7 ± 8.2 mmHg in survivors and from 52.8 ± 13.0 to 32.0 ± 17.3 mmHg in non-survivors. Overall 25.6%died (11 of 43), and 32.5% (14 of 43) remained in vegetative state or were severely disabled. Favourable outcome (Glasgow Outcome Scale 4 and 5) was observed in 41.9% (18 of 43). No tendency towards either increased or decreased incidence in favourable outcome was found relative to the time from admission to DC.Six of the 18 patients (33.3%) with favourable outcome were operated on within the first 6 h.
Conclusions:
DC lowers ICP and raises CPP to high normal levels in survivors compared to non-survivors.The timing of DC showed no clear trend, for either good neurological outcome or death. Overall, the survival rate of 74.4% is promising and 41.9% had favourable neurological outcome.
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Increased Intracranial Pressure ll: Pathophysiology
Increased Intracranial Pressure l: Introduction
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