Table 2.
Seizure outcome related to IQ categories at long-term follow-up
| Seizure-free n | >75% reduction n | 50–75% reduction n | 0–50% reduction n | More seizures n | Total n | |
|---|---|---|---|---|---|---|
| IQ < 50 | 0 (6) | 8 (2) | 1 (2) | 4 (0) | 0 (0) | 13 (10) |
| IQ 50–69 | 2 (4) | 2 (1) | 1 (0) | 1 (0) | 4 (0) | 10 (5) |
| IQ ≥ 70 | 0 (0) | 1 (0) | 1 (1) | 0 (0) | 0 (0) | 2 (1) |
| Total | 2 (10) | 11 (3) | 3 (3) | 5 (0) | 4 (0) | 25a (16b) |
All seizure types versus drop attacks (in brackets).
n, number.
a
One patient with IQ 50–69 had unknown seizure frequency preoperatively.
b
Two patients with drop attacks were lost to long-term follow-up, one with IQ < 50 and one with IQ 50–69.