Table 4.
One-operator performance index comparison (sheath time, cannulation time, procedure time) between 2019 and 2021.
| 2019 (n = 550) | 2020 (n = 448) | 2021 (n = 242) | p Value | |
|---|---|---|---|---|
| Sheath Time | ||||
| Ultrasonography Time (s) | 23.9 | 20.5 | 11.82 c | 0.001 |
| Puncture Time (s) | 158 | 162 | 138 c | 0.001 |
| Number of attempts | 2.32 | 1.9 | 1.64 b | 0.02 |
| Wall puncture Anterior Wall |
261 | 223 | 148 c | 0.001 |
| Anterior & Posterior Wall | 202 | 214 | 92 c | 0.001 |
| Cannulation Time (s) | 16.65 | 15.3 | 15.9 | 0.14 |
| Procedure Time (min) | 38.1 | 45.2 | 41.48 | 0.13 |
Continuous data are presented as the median (interquartile range Q1, Q3); categorical data are given as the count (percentage). Significance level: b p < 0.05, c p < 0.01.