Table 3.
Comparison of complications between transvenous ICD and subcutaneous ICD.
| Transvenous ICD | Subcutaneous ICD | |
|---|---|---|
| Number of patients | 330 | 7 |
| Patients with complications | 97 (29.4%) | 4 (57.1%) |
| Number of complications | 234 | 10 |
| Inappropriate shocks Cause of shock, n (%) |
152 (65%) | 10 (100%) |
| -Supraventricular arrhythmias | 65 (42.8%) | 0 (0%) |
| -R-wave oversensing | 0 (0%) | 1 (10%) |
| -T-wave oversensing | 1 (0.7%) | 6 (60%) |
| -Sinus tachycardia | 4 (3%) | 0 (0%) |
| --Electrode defect | 1 (0.7%) | 1 (10%) |
| -Lead fracture/failure | 9 (6%) | 0 (0%) |
| Electrode defect | 1 (0.4%) | 0 (0%) |
| Lead fracture/failure | 26 (11.1%) | 0 (0%) |
| Electrical storm | 46 (19.7%) | 0 (0%) |
| Thromboembolic event | 1 (0.4%) | 0 (0%) |
| Endocarditis | 2 (0.8%) | 0 (0%) |
| ICD-pocket infection | 6 (2.6%) | 0 (0%) |
| Follow-up time | 46.8 months, mean (excluding studies reporting the median follow-up) | 28.5 months mean 21 months median (range 16–80 months) |