Neuroanaesthesia & neurocritical care
MRI-based quantitative profiling of hypoxic-ischemic brain injury in postanoxic status epilepticus and other EEG patterns
Authors' conclusion
Postanoxic SE exhibited a more favorable HIBI profile than GPDs or malignant EEG patterns.
Study context
- Population
- Comatose patients after cardiac arrest with EEG and brain MRI data
- Participants
- 192 patients
- Exposure
- Postanoxic SE vs generalized periodic discharges (GPDs), malignant and benign EEG patterns
- SEn = 26
- GPDsn = 46
- Malignantn = 44
- Benignn = 76reference
- Outcome
- Extent of hypoxic-ischemic brain injury (quantitative ADC maps)
Methodological detailstwo-center, consecutive patients, quantitative MRI (ADC) analysis
- Two-center
- Consecutive patients
- Quantitative MRI (ADC) analysis
Main finding
As reported in the abstract
Whole-brain ADC
Malignant
750
median · × 10-6 mm²/s
GPDs
838
× 10-6 mm²/s
SE
893
× 10-6 mm²/s
Benign
907
× 10-6 mm²/s
SE vs malignant: P < 0.001 · SE vs GPDs: P = 0.021 · SE vs benign: P = 0.26
- Whole-brain ADC differed significantly across EEG patterns
- P < 0.001
Observational data: associations, not effects.
Further findings
Neurological recovery (all patients)
- Coma recovery at discharge
- 30.7%
- CPC 1-2 at 3 months
- 21.2%
Predictors of good outcome (multivariable models)
- Higher occipital cortical ADC an independent predictor of good outcome, alongside EEG pattern, clinical variables and neuron-specific enolase
Original publication
MRI-based quantitative profiling of hypoxic-ischemic brain injury in postanoxic status epilepticus and other EEG patterns. Resuscitation. Published 25 May 2026. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →