Acute cardiac care & resuscitation
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, having EEG and brain MRI databenign 76 · generalized periodic discharges (GPDs) 46 · malignant 44 · SE 26
- Participants
- 192 postanoxic patients
- Exposure
- We compared the extent of hypoxic-ischemic brain injury (HIBI) in postanoxic SE with other EEG patterns, particularly generalized periodic discharges (GPDs), using quantitative MRI analysis.
- SEn = 26
- GPDsn = 46
- Malignantn = 44
- Benignn = 76
- Outcome
- Neurological recovery
- Follow-up
- Discharge and 3 months
Methodological detailsconsecutive
- Consecutive
Main finding
As reported in the abstract
Coma recovery at discharge 30.7%; CPC 1-2 at 3 months
21.2%
CPC 1-2 at 3 months
21.2%
Observational data: associations, not effects.
Further findings
| Outcome | SE | GPDs | Malignant | Benign | P value |
|---|---|---|---|---|---|
| Whole-brain ADCSE vs malignant · significantly higher ADC in SE | 893 × 10-6 mm²/s | 838 × 10-6 mm²/s | median 750 × 10-6 mm²/s | 907 × 10-6 mm²/s | P < 0.001 |
| Whole-brain ADCSE vs GPDs · significantly higher ADC in SE | P = 0.021 | ||||
| Whole-brain ADCSE vs benign · did not differ | P = 0.26 |
- Whole-brain ADC — differed significantly across EEG patterns
- p < 0.001
Regional and voxel-wise ADC
- Confirmed these findings
Predictors of good outcome (multivariable models)
- Higher occipital cortical ADC was 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.
Summarised from the published abstract; every number is checked against it