Table 1 Patient characteristics.

From: Resection of high frequency oscillations predicts seizure outcome in the individual patient

Patient

Age, Gender

Histology/Pathology

Epilepsy

Electrode placement

Type of electrodes

Surgery

Nights

Intervals

Test - retest intervals

Test - retest nights

Ripple area resected?

FR area resected?

FRandR area resected?

Outcome (ILAE)

Postoperative follow-up (months)

1

25, M

HS and gliosis

TLE

MTL L, R

5 depth, 1 strip 4 × 1, 1 strip 6 × 1

sAHE; Les

4

28

0.99

1.00

N

N

Y

1

12

2

33, M

Glioma

TLE

MTL L, R

8 depth

sAHE; Les

2

13

1.00

1.00

Y

Y

Y

1

29

3

20, F

HS

TLE

MTL L, R

5 depth

sAHE

5

39

0.78

1.00

N

Y

Y

1

13

4

20, F

HS

TLE

MTL L, R

8 depth

sAHE

6

34

1.00

1.00

N

Y

Y

1

41

5

40, M

HS

TLE

MTL L, R

8 depth

sAHE

5

35

0.94

1.00

Y

Y

Y

1

14

6

48, M

HS

TLE

MTL L, R

8 depth

sAHE

5

35

0.98

1.00

Y

Y

Y

1

11

7

25, M

HS

TLE

MTL L, R

8 depth

sAHE

1

1

Y

Y

Y

3

42

8

21, F

HS

TLE

MTL L, R

8 depth

sAHE

2

16

0.67

1.00

Y

Y

Y

3

15

9

52, M

HS

TLE

MTL L, R

8 depth

sAHE

2

12

1.00

1.00

Y

Y

Y

5

46

10

37, M

FCD 2b

ETE

Pr R

1 grid 8 × 4; 2 strips 4 × 1

Les

1

6

1.00

N

Y

Y

1

36

11

36, M

FCD 2b

ETE

F R

1 grid 8 × 8; 1 depth

Les

3

19

1.00

1.00

Y

Y

Y

1

37

12

49, M

Ganglioglioma

ETE

T-Lat L

1 grid 8 × 4; 1 depth

Les

4

25

0.53

0.67

Y

N

Y

1

25

13

17, M

FCD 1a

ETE

P R

1 grid 8 × 8; 1 depth

Les

2

16

0.75

1.00

N

N

Y

1

25

14

46, F

FCD 1b

ETE

P R

2 grids 8 × 2; 1 strip 6 × 1; 1 strip 4 × 1; 1 depth

Les

2

13

0.97

1.00

Y

Y

Y

1

10

15

31, F

Gliosis

ETE

T-Lat L

1 grid 8 × 4; 2 strips 4 × 1

Les

4

28

0.32

0.33

Y

N

Y

1

25

16

17, F

FCD 2a

ETE

F-Pr-C L

1 grid 8 × 4; 1 depth

Les

2

17

1.00

1.00

N

Y

Y

1

19

17

30, M

FCD 2a

ETE

F R

2 grids 8 × 2; 1 depth

Les

1

1

Y

Y

N

5

45

18

40, M

FCD 2a

ETE

P R

2 strips 6 × 1; 1 depth

Les

1

5

1.00

N

Y

N

5

30

19

38, M

Cavernoma

ETE

T P

1 grids 8 × 4; 1 grids 8 × 2

Les

2

13

0.36

0.00

N

N

N

6

11

20

17, M

FCD 3

ETE

O T

1 grids 8 × 2

Les

4

29

0.23

1.00

N

N

N

5

16

  1. Abbreviations: C = central; depth = depth electrode; ETE = extratemporal lobe epilepsy; F = frontal; FCD = focal cortical dysplasia; FR = fast ripple; FRandR = FR occurring together with ripple; grid = grid electrode; HFO = high frequency oscillation; HS = hippocampus sclerosis; ILAE = International League Against Epilepsy; MTL = mesial temporal lobe; L = left; Lat = lateral; Les = lesionectomy; O = occipital; P = parietal; Pr = precentral; R = right; sAHE = selective amygdala-hippocampectomy; strip = strip electrode; T = temporal; TLE = mesial temporal lobe epilepsy. Test-retest intervals/nights: percentage of scalar products between pairs of intervals/nights exceeding the significance threshold (see Methods: Test-retest reliability of the spatial distribution of HFO). Over the intervals of TLE patients, the median was >98% irrespective of outcome. Over the intervals of ETE patients, the median was 97% for patients with good outcome and only 36% for patients with poor outcome.