Complications
| Complications | No of studies | Raw no of eventsa | Rate (%) | 95% CI | I2 (%) |
|---|---|---|---|---|---|
| Procedure-related complications | 9 | 31/384 | 6.5 | 4.1 to 9.0 | 0 |
| Thromboembolic events | 9 | 22/384 | 4.9 | 1.9 to 7.9 | 43.4 |
| Symptomatic thromboembolic events | 9 | 16/384 | 2.4 | 0.9 to 3.9 | 0 |
| Hemorrhagic events | 9 | 8/384 | 2.1 | 0.7 to 3.5 | 0 |
| Neurologic hemorrhagic complications | 9 | 2/384 | 0.9 | 0 to 1.8 | 0 |
| Non-neurologic hemorrhagic complications | 9 | 6/384 | 1.9 | 0.5 to 3.2 | 0 |
| In-stent thrombosis | 9 | 9/384 | 1.4 | 0.2 to 2.5 | 0 |
| Procedure-related morbidity | 9 | 8/384 | 1.4 | 0.2 to 2.6 | 0 |
| Procedure-related mortality | 9 | 0/384 | 0 | 0 | 0 |
aDiscordances between the raw event percentages and the percentages calculated from the meta-analysis are caused by greater weights assigned to outcomes of studies with larger sample sizes.