| Types of complications | Patients (%) |
| Electrode dysfunction | 33 (5.4) |
| Pocket-related (decubitus, hematoma) | 9 (1.4) |
| Infection | 11 (1.8) |
| Inappropriate shocks | 93 (15.2) |
| Total number of patients with one or more complications (including inappropriate shocks) | 138 (22.5) |