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Table 1 Our patients

From: VNS in drug resistant epilepsy: preliminary report on a small group of patients

Etiology

Age

Duration of epilepsy

Seizure Type

VNS stimulation parameters associated with seizures reduction

Syndrome

Follow-up

Actual VNS stimulation parameters

Seizures frequency

1

Idiopathic

16 y

9 y

Generalised seizures

I: 1.75 mA;

T off: 5 min

Absence epilepsy

29 m

I: 1.75 mA;

T off: 5 min

Very good responder > 75%

2 Symptomatic

8 y

7 y

Drop attacks, partial seizures with secondary generalization

i: 2.00 mA;

T off: 5 min

Partial epilepsy secondary to herpetic encephalitis

29 m

i: 2.00 mA;

T off: 5 min

Good responder > 50%

3 Symptomatic

11 y

10 y

Drop attacks, partial seizures

i: 1.25 mA;

T off: 5 min

Partial epilepsy secondary to herpetic encephalitis

26 m

i: 1.50 mA;

T off: 5 min

Very good responder >75%

4 Symptomatic

26 y

17 y

Partial

?

Partial epilepsy

due to double cortex

22 m

i: 1.50 mA;

F: 20 Hz

T off: 5 min

Non responder

5

Probably Symptomatic

11 y

11 y

Partial

i: 1.50 mA;

T off: 40 min

Probably symptomatic epilepsy

22 m

i: 1.50 mA;

T off: 5 min

Good responder > 50%

6 Symptomatic

28 y

28 y

Partial seizures with secondary generalization

I: 1.25 mA;

T off: 180 min

Symptomatic partial epilepsy due to peri-natal sufferance

13 m

i: 2.00 mA;

T off: 25 min

Non responder

7

Probably Symptomatic

23 y

4 y

Partial seizures with secondary generalization

i: 0.50 mA;

T off: 180 min

Probably symptomatic epilepsy

10 m

i: 1.00 mA;

T off: 45 min

Seizures free

8 Symptomatic

17 y

11 y

Partial seizures with secondary generalization

i: 1.25 mA;

T off: 120 min

Symptomatic partial epilepsy due to peri-natal sufferance

8 m

i: 1.25 mA;

T off: 90 min

Very good responder >75%

9

Probably Symptomatic

14 y

14 y

Partial seizures with secondary generalization

i: 1.25 mA;

T off: 120 min

Lennox-Gastaut syndrome

6 m

i: 1.25 mA;

T off: 90 min

Very good responder >75%

  1. Initial VNS stimulation parameters: i: 0.25 mA, F: 30 Hz, A: 500 μs, T on: 30 s, T off: 180 min
  2. m: months
  3. y: years