Table 2.
Endpoints and procedural variables.
| Variables | d-TRA n (%) | w-TRA n (%) | p |
|---|---|---|---|
| Procedure success | 77 (77.0) | 93 (93.0) | 0.004 |
| Successful cannulation (sheath placement) | 78 (78.0) | 97 (97.0) | 0.000 |
| Successful radial artery puncture | 93 (93.0) | 99 (99.0) | 0.065 |
| Access time (min) | 4.1 ± 2.9 | 2.6 ± 2.4 | <0.001* |
| Total procedure time (min) | 13.4 ± 4.2 | 9.2 ± 3.1 | <0.001* |
| Fluoroscopy time (s) | 86.6 ± 4.2 | 81.9 ± 49.7 | 0.452* |
| Cumulative air kerma (mGy) | 297.6 ± 124.0 | 272.8 ± 99.0 | 0.296* |
| Cumulative dose area product (mGycm2) | 17815.4 ± 7783.9 | 16465.7 ± 5905.7 | 0.375* |
| Frequency of 0.014-inch wire use for obtaining access successfully | 18 (23.4) | 10 (10.8) | 0.004 |
| Sheath size | |||
| 5 French | 76 (98.7) | 89 (95.7) | 0.379 |
| 6 French | 01 (1.3) | 04 (4.3) | |
| Frequency of each vasodilator administered in sheath | |||
| Diltiazem (5 mg) | 66 (85.7) | 74 (79.6) | 0.313 |
| Nitroglycerine (100 mcg) | 14 (18.2) | 27 (29) | 0.100 |
| Number of catheters passed through the access site during the procedure | 1.0 ± 0.2 | 1.0 ± 0.1 | 0.711* |
| Major complication/s | 0 (0) | 0 (0) | – |
| Post procedure puncture site pain | 1 (1.3) | 1 (1.1) | 1.000 |
Data are presented as mean ± SD or n (%).
Categorical variables are expressed as counts and percentages. The continuous variables are expressed as mean ± SD. d-TRA = distal transradial access; w-TRA = transradial access at wrist.
*
Mann–Whitney U test.