Postoperative follow up of initially seizure-free patients
| Findings | 3 m | 1 y | 2 y | 3 y | 4 y | 5 y | 7 y | 9 y | Latest* |
|---|---|---|---|---|---|---|---|---|---|
| Values are n (%) of patients. | |||||||||
| *Latest: latest available follow up data. | |||||||||
| †Some seizures after surgery but now seizure-free for at least two years. | |||||||||
| ‡Engel II: fewer than three seizures a year; Engel III: worthwhile seizure reduction (at least an 80% seizure reduction); Engel IV: no worthwhile seizure reduction (less than 80% seizure reduction). | |||||||||
| m, months; y, years. | |||||||||
| Seizure-free | 76 (86) | 56 (64) | 44 (58) | 40 (54) | 31 (50) | 26 (50) | 13 (45) | 6 (50) | 51 (58) |
| Originally seizure-free | 76 (86) | 56 (64) | 44 (58) | 38 (51) | 30 (48) | 23 (44) | 12 (41) | 5 (42) | 47 (53) |
| Became seizure-free† | 0 (0) | 0 (0) | 2 (3) | 1 (2) | 3 (6) | 1 (3) | 1 (8) | 4 (5) | |
| Auras only | 12 (14) | 13 (15) | 9 (12) | 9 (12) | 8 (13) | 9 (17) | 3 (10) | 2 (17) | 10 (11) |
| Engel II‡ | 13 (15) | 10 (13) | 9 (12) | 11 (18) | 10 (19) | 5 (17) | 2 (17) | 13 (15) | |
| Engel III‡ | 4 (5) | 9 (12) | 12 (16) | 7 (11) | 2 (4) | 3 (10) | 1 (8) | 7 (8) | |
| Engel IV‡ | 2 (3) | 4(5) | 4(5) | 5 (8) | 5(10) | 5 (17) | 1 (8) | 7 (8) | |
| Total | 88 (100) | 88 (100) | 76 (100) | 74 (100) | 62 (100) | 52 (100) | 29 (100) | 12 (100) | 88 (100) |