Minor complications or events
| Event | No. Patients |
|---|---|
| Vasovagal reaction | 19 |
| Sympathetic blockade | 6 |
| Increase in usual pain at 30 minutes | 3 |
| Increase in usual pain at 30 days | 7 |
| Persistent nausea | 1 |
| Hematoma (clinically suspected) | 1 |
| Minor allergic reaction | 1 |
| Contralateral paresthesias | 1 |
| Sensation of transient incomplete lung expansion | 1 |