Table 3.
Analysis of learning curve: comparison between TVT surgery and TOT surgery
| TVT surgery | |||||
|---|---|---|---|---|---|
| Phase I (1-15cases) | Phase II (16-30 cases) | Phase III (31-38cases) | p Value (comparison between I and II) | p Value (comparison between II and III) | |
| surgical duration (min) | 47.6 ± 19.1 | 32.8 ± 8.5 | 26.9 ± 4.3 | 0.0186 | 0.0888 |
| blood loss (ml) | 2.1 ± 8.0 | 0 | 0 | 0.5124 | 0.7721 |
| catheterization (day) | 2.9 ± 2.1 | 2.1 ± 0.3 | 2.0 ± 0 | 0.5281 | 0.4915 |
| admission (day) | 3.4 ± 0.8 | 3.1 ± 0.3 | 3.6 ± 1.4 | 0.7524 | > .9999 |
| POD1 post-voiding residue (ml) | 46.3 ± 62.1 | 15.2 ± 20.5 | 34.0 ± 7.5 | 0.424 | 0.823 |
| POM3 post-voiding residue (ml) | 41.7 ± 68.7 | 31.5 ± 49.0 | 3.3 ± 5.8 | 0.384 | 0.233 |
| subcutaneous hematoma | 1 (6.7%) | 1 (6.7%) | 0 | 0.9565* | 0.4214* |
| post-operative urinary retention | 2 (13.3%) | 1 (6.7%) | 0 | 0.5859* | 0.4214* |
| TOT surgery | |||||
| Phase I (1-15 cases) | Phase II (16-30 cases) | Phase III (31-45 cases) | p Value (comparison between I and II) | p Value (comparison between II and III) | |
| surgical duration (min) | 33.2 ± 7.0 | 29.2 ± 6.4 | 30.7 ± 11.1 | 0.1266 | 0.9816 |
| blood loss (ml) | 1.4 ± 5.4 | 2.0 ± 7.8 | 6.2 ± 15.6 | > .9999 | 0.7297 |
| catheterization (day) | 2.0 ± 0 | 2.0 ± 0 | 2.1 ± 0.3 | 0.5705 | 0.8538 |
| admission (day) | 3.1 ± 0.5 | 3.3 ± 0.8 | 3.3 ± 0.9 | > .9999 | 0.6784 |
| POD1 post-voiding residue (ml) | 4.5 ± 15.0 | 12.9 ± 17.3 | 20.3 ± 26.8 | 0.135 | 0.423 |
| POM3 post-voiding residue (ml) | 10.4 ± 20.8 | 38.9 ± 67.0 | 29.0 ± 41.2 | 0.165 | 0.951 |
| subcutaneous hematoma | 0 | 0 | 1 (6.7%) | > .9999* | 0.274* |
| post-operative urinary retention | 0 | 0 | 0 | > .9999* | > .9999* |
p value: Mann-Whitney's U test * Fisher's exact test