Table 2. Comparison of the Catheterization Outcomes in the Two Groups (n = 50) a.
| Variables | The Study Groups | P Value | |
|---|---|---|---|
| Ultrasound Guided | Anatomic Landmarks | ||
| Access Time, Second | 37.12 ± 17.33 | 63.42 ± 35.19 | < 0.001 |
| Numbers of attempts | 1.12 ± 0.328 | 1.58 ± 0.641 | < 0.001 |
| One attempt | 44 (88) | 25 (50) | < 0.001 |
| Two attempts | 6 (12) | 21 (42) | |
| More than two attempts | 0 (0) | 4 (8) | |
| Success rate | < 0.013 | ||
| Successful | 50 (100) | 44 (88) | |
| Unsuccessful | 0 (0) | 6 (12) | |
| Complications | < 0.004 | ||
| No complications occurred | 48 (96) | 38 (76) | |
| Complication occurred | 2 (4) | 12 (24) | |
| Types of complications | |||
| Hematoma | 1 (2) | 4 (8) | 0.181 |
| Carotid Puncture | 1 (2) | 5 (10) | 0.102 |
| Hemothorax | 0 (0) | 2 (4) | 0.247 |
| Pneumothorax | 0 (0) | 1 (2) | 0.501 |
aData are presented as No. (%) or Mean ± SD.