Table 2. Seizure propagation speed and duration.
| Number of seizures | Seizure propagation speed (cm/min) | Seizure duration (min) | |
|---|---|---|---|
| Case 1 | 8 | 5.1 ± 4.5 | 36.4 ± 51.5 |
| Case 2 | 3 | 2.9 ± 2.2 | 12.4 ± 2.8 |
| Case 3 | 6 | 1.2 ± 0.2 | 2.6 ± 0.5 |
| Case 4 | 2 | 0.8 ± 0.3 | 22.5 ± 21.9 |
| Case 5 | 2 | 0.8 ± 0.3 | 9.0 ± 8.5 |
| Average | - | 3.1 ± 3.6 | 19.4 ± 33.6 |
The mean propagation speed of the seizures was 3.1 ± 3.6 cm/min, with a range of 0.3 to 10.0 cm/min. The mean duration of 21 seizures was 19.4 ± 33.6 min, with a range of 2.0 to 151 min. Older patients (cases 4, 5) tended to present a slower propagation speed.