Table 1: Summary of patient data.
Pre-excision
ECOG EA Lesion Post-excision
ECOG EA F/U Patient Age Side Pathology F1 F2 F3 C T Surgery excision Border Distant Outcome (years) 01 15 L Oligodendroglioma + + + + + L&C Complete* C IV 2 01r 17 L Gliosis nr + + + nr ASL Complete B III 5 02 28 R Oligodendroglioma + - - - - ASL Complete - - I 7 03 25 R Meningioma
+ gliosis - - - - nr L&C Complete - - I 17 04 17 R Hamartoma + + + + + Lob Incomplete** D IV 10 05 21 L AVM + + - - nr L&C Complete - - I 12 06 26 L Astrocytoma
(low grade) + - - - - L&C Complete - - I 10 07 10 R AVM - + + - nr L&C Complete* A I 6 08 20 R Astrocytoma
(low grade) +a +a + - + Lob Incomplete - - III 5 09 27 L Astrocytoma
(low grade) + - + - - L&C Incomplete* C III 3 10 19 L Hamartoma - + - - - MD Complete** - - I 7 11 37 L Oligodendroglioma - - - - - L&C Complete - - I 7 12 35 L Mixed astrocytoma/oligodendroglioma + + - - - L&C Complete** - - I 8 13 57 L Anaplastic
astrocytoma - - - - - L&C Incomplete - - I 4 14 5 R Tuberous
sclerosis + + + + + ASL Incomplete* D IV 7 15 30 L Ganglioglioma - - - - nr L&C Incomplete - - III 2 16 8 R Protoplasmic
astrocytoma + + + + nr ASL Complete B I 10 17 10 R Tuberous
sclerosis - + + - - L&C Incomplete - - IV 2 17r 12 R Tuberous
sclerosis - - - - - ASL ?Incomplete No post recording IV 8 18 13 R Tuberous
sclerosis - + + - - L&C Incomplete B III 3 18r 16 R Tuberous
sclerosis - + nr - - ASL ?Complete* A I 5 19 38 R AVM - - - - - L&C Complete - - I 2 20 20 R AVM - - + + - L&C +
ct Complete - - I 1 21 30 R Tuberous
sclerosis - - - - nr L&C Complete - - I 1 22 25 L Ganglioglioma - - - - nr L&C Complete No post recording I 1 aEA
only after methohexital administration. *Resection
extended once because of post-excision ECOG. **Resection
extended twice because of post-excision ECOG. A = spike
frequency ² 6 spikes/minute; B = spike frequency > 6-12 spikes/minute;
C = spike frequency > 12-24 spikes/minute; D = spike frequency >24
spikes/minute; F1, F2, F3, C, T = first frontal, second frontal, third
frontal, central, temporal gyri, respectively; Lob = frontal lobectomy;
ASL = anterior (subtotal) lobectomy; MD = mediodorsal resection; L&C
= lesionectomy and corticectomy; ct = subpial cortical transection (central
region); F/U = follow-up; r = re-operation; nr = no recording.
Back to Role of Electrocorticography at Surgery for Lesion-related Frontal Lobe Epilepsy
Table 2:
|
A. Pre-excision EA and outcome. |
|||
|
Class I |
Class III and IV |
Total |
|
|
EA |
1 |
5 |
6 |
|
EA |
14 |
5 |
19 |
|
Total |
15 |
10 |
25 |
|
(p < 0.05) |
|||
|
B. Post-excision EA (distant to resection border) and outcome. |
|||
|
Class I |
Class III and IV |
Total |
|
|
Distant EA |
1 |
6 |
7 |
|
Absent |
13 |
3 |
16 |
|
Total |
14 |
9 |
23 |
|
(p < 0.01) |
|||
|
C. Completeness of lesion excision and outcome. |
|||
|
Class I |
Class III and IV |
Total |
|
|
Complete |
14 |
2 |
16 |
|
Incomplete |
1 |
8 |
9 |
|
Total |
15 |
10 |
25 |
|
(p < 0.001) |
|||
Back to Role of Electrocorticography at Surgery for Lesion-related Frontal Lobe Epilepsy
Table 3:
|
A. Complete lesionectomy with no distant post-excision EA and outcome. |
|||
|
Class I |
Class III and IV |
Total |
|
|
Complete resection + absent distant EA |
12 |
0 |
12 |
|
Incomplete resection and/or distant EA |
2 |
9 |
11 |
|
Total |
14 |
9 |
23 |
|
(p < 0.00015) |
|||
|
B. Complete lesionectomy with pre-excision EA from ² 2 gyri and outcome. |
|||
|
Class I |
Class III and IV |
Total |
|
|
Complete
resection + EA |
13 |
0 |
13 |
|
Incomplete
resection and/or EA |
2 |
10 |
12 |
|
Total |
15 |
10 |
25 |
|
(p < 0.00005) |
|||
Back to Role of Electrocorticography at Surgery for Lesion-related Frontal Lobe Epilepsy
three gyri
two gyri