EEG pattern
| Good Outcome (n = 9) | Poor Outcome (n = 8) | |
|---|---|---|
| Malignant EEG pattern | 0/9 | 0/8 |
| Periodic features | 5/9 none, 4/9 RDA | 5/8 none; 2/8 LPDs, 1/8 RDA |
| Unreactive EEG | 2/9 unreactive, 7/9 reactive | 6/8 unreactive, 2/8 reactive |
| Seizure | 0/9 | 0/8 |
| Disorganized background | 1/9 | 4/8 |
Note:—Malignant EEG pattern indicates suppressed background with or without continuous periodic discharges, burst-suppression, abundant periodic discharges, or rhythmic epileptiform transients, electrographic seizure, discontinuous or low-voltage background, reversed anterior-posterior gradient; Unreactive EEG, absence of background reactivity or only stimulus-induced discharges; LPDs, lateralized periodic discharges; RDA. rhythmic Δ activity.