Causes of failure to proceed with TRA–PPCI in 84 procedures (3.8% of total)
| Reason for crossover | n=84 |
| Puncture failed | 12 (14.3) |
| Peripheral occlusion and/or tortuosity | 30 (35.7) |
| Inadequate catheter support | 14 (16.7) |
| Radial artery spasm | 6 (7.1) |
| Not recorded | 22 (26.2) |
Values are expressed as number (%).
PPCI, primary percutaneous coronary intervention; TRA, transradial approach.