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Complications of radial artery catheterization.
| Variables | Saline group (n = 17) | Phentolamine group (n = 18) | Phentolamine+lidocaine group (n = 20) | P value |
|---|---|---|---|---|
| Vasospasm (%) | 6 (35.29%) | 2 (11.11%) | 1 (5.00%) | 0.035 |
| Hematoma (%) | 6 (35.29%) | 3 (16.67%) | 3 (15.00%) | 0.268 |
| Distal ischemia (%) | 2 (11.76%) | 1 (5.56%) | 1 (5.00%) | 0.691 |
| Hypotension within 20 min after subcutaneous injection (%) | 0 (0%) | 0 (0%) | 0 (0%) | |
| Overall complications | 14 | 6 | 5 | <0.01 |
