Table 2. The VNS Device Malfunctions Associated With Laryngeal Adverse Effectsa.
| Category | No. (%) |
|---|---|
| Total No. | 187 (100) |
| Device operates differently than expected | 51 (27.27) |
| High impedance | 15 (8.02) |
| Battery problems | 11 (5.88) |
| Incorrect frequency delivery | 10 (5.35) |
| Migration or expulsion of device | 8 (4.28) |
| Break/facture | 6 (3.21) |
| Patient-device incompatibility | 4 (2.14) |
| Malposition of device | 3 (1.60) |
| Misfiring | 2 (1.07) |
Abbreviation: VNS, vagus nerve stimulation.
a
For categories with more than 1 report.