Table 2 Paraesthesia coverage, types of implants, outcome, complications and removal rate of patients implanted with occipital nerve stimulation
| Â | Diagnosis | Side shift | Origin of pain | Implant success | Lead(s) | Paraesthesia coverage | Last Fw/up | Revision surgery | Time to revision | Removal | Time to removal |
|---|---|---|---|---|---|---|---|---|---|---|---|
1 | CM | Y | Occipital | No | 1 Quadripolar | Good | 77 | -- | -- | -- | -- |
2 | CM | Y | Neck/ Occipital | No | 1 Quadripolar | Excellent | -- | -- | -- | Painful paraesthesia - inefficacy | 10 |
3 | CM | Y | Occipital | Yes (100%) | 2 Quadripolar | Good | 71 | Battery site hyperalgesia | 2 | -- | -- |
4 | CM | Y | Ear | Yes (90%) | 2 Octopolar | Moderate | -- | -- | -- | Granuloma and skin erosion | 29 |
5 | CM | N | Eye | Yes (100%) | 2 Octopolar | Moderate | 42 | -- | -- | -- | -- |
6 | CM | Y | Occipital | Yes (90%) | 2 Octopolar | Excellent | 18 | Infection lead (×2) | 11 | -- | -- |
7 | IIH | Y | Occipital | Yes (100%) | 2 Octopolar | Excellent | 21 | -- | -- | -- | -- |
8 | ON | Y | Occipital | Yes (100%) | 1 Quadripolar | Excellent | 28 | -- | -- | -- | -- |
9 | ON | Y | Neck/ Occipital | Yes (70%) | N/A | Excellent | 31 | Tilted IPG | N/A | -- | -- |
10 | CH | N | Occipital | Yes (50%) | N/A | N/A | 28 | Lead replacement (High Imp.) | 24 | -- | -- |
11 | CM | N | N/A | No (<50%) | 2 Octopolar | Poor | -- | -- | -- | Inefficacy | 54 |
12 | ON | Y | Occipital | Yes (50%) | N/A | Good | 28 | -- | -- | -- | -- |
13 | CM | Y | Neck | Yes (100%) | N/A | Excellent | 48 | Skin erosion (×3) | N/A | -- | -- |
14 | CM | N | Occipital | No | N/A | N/A | -- | -- | -- | Inefficacy and implant site infection | 2 |
15 | CM | Y | Neck/ Occipital | No | 2 Octopolar | Excellent | -- | 1st: painful paraesthesia; 2nd: SO lead added | 12 | Inefficacy | 35 |
16 | CM | Y | Neck/ Occipital | No | 1 Octopolar | Excellent | 79 | -- | -- | -- | -- |
17 | CM | Y | Occipital | No | 1 Octopolar | Excellent | -- | Lead migration | 8 | Inefficacy | 20 |
18 | Cerv.H. | Y | Occipital | No | 2 Octopolar | Good | -- | Several granulomas, lead breakage | N/A | Inefficacy and implant site infection | 61 |
19 | CM | N | Neck | Yes (50%) | 2 Octopolar | Moderate | 31 | -- | -- | -- | -- |
20 | CM | N | Temple | Yes (70%) | 2 Quadripolar | Poor | 13 | -- | -- | -- | -- |
21 | CM | N | Temple | Yes (50%) | 2 Quadripolar | Poor | 11 | Lead and IPG replaced (High Imp.) SO lead added | 7 | -- | -- |
22 | CM | N | Eye | Yes (50%) | 2 Quadripolar | Poor | 12 | -- | -- | -- | -- |
23 | CM | Y | Forehead | No | 2 Quadripolar | Poor | -- | Lead migration | -- | Pt request despite effective | 12 |