Ictal asystole n=103 | Reported in n cases | Postictal asystole n=13 | Reported in n cases | |
---|---|---|---|---|
Age (years) | 44 (16.3) | 101 | 34 (11.7) | 13 |
Gender | 51% male | 101 | 46% male | 13 |
Type of epilepsy | 100% focal | 89 | 100% focal | 12 |
Epilepsy duration (years) | 15 (5–30) | 60 | 8 (2–21) | 11 |
Seizure frequency (per month) | 4 (1–10) | 25 | ||
AED | No AED 13% | 84 | ||
Monotherapy 27% | ||||
Polytherapy 60% | ||||
Normal MRI | 50% | 64 | 17% | 6 |
Right handed | 92% | 36 | ||
Seizure duration prior to asystole (s) | 24 (13–35) | 47 | 187 (71–276) | 8 |
Time between seizure offset and start of asystole (s) | 90 (20–158) | 10 | ||
Seizure type at onset of asystole | 99% FDS | 96 | 85% fbCS | 13 |
1% FAS | 1 | 15% FDS | ||
Evolving to bilateral convulsive seizure after onset of asystole | 7% | 90 | Not applicable | |
Duration asystole (s) | 19 (10–26) | 96 | 24 (7–60) | 6 |
EEG seizure onset (n) | LT/LFT 37 (35/2) | 80 | LT/LFT 2 (2/0) | 10 |
RT/RFT 25 (23/2) | RT/RFT 6 (5/1) | |||
BT 10 | BF 1 | |||
LH 3 | Ri par 1 | |||
Non-lat 3 | ||||
RH 1 | ||||
RO 1 | ||||
PGES before asystole | Not applicable | 70% | 10 | |
Apnoea before asystole | 100% | 8 | ||
Pacemaker implanted | 88% | 50 | 50% | 4 |
Results are presented as percentiles, mean (SD) or median (25th–75th centile).
AED, antiepileptic drugs; BF, bifrontal; BT, bitemporal; FAS, focal autonomic seizure; fbCS, focal seizure evolving to bilateral convulsive seizure; FDS, focal dyscognitive seizure; LFT, left frontotemporal; LH, left hemisphere; LT, left temporal; non-lat, non-laterising; PGES, postictal generalised EEG suppression; RFT, right frontotemporal; RH, right hemisphere; ri par, right parietal; RO, right occipital; RT, right temporal.