Table 2. The relationship between pre-FLP and post FLP VEGF-R1 levels with various factors . (*) Spearman test; (**) Mann -Whitney test.
| preVEGF-R1 Factors |
preVEGF-R1 | |
|---|---|---|
| r | p | |
| Mother’s age (years) | 0,0026 | p>0,05* |
| Gestational age at surgery (weeks) | -0,03 | p>0,05* |
| MVP of polyhydramnios fetus (ml) | 0,08 | p>0,05* |
| MVP of oligohydramnios fetus (ml) | 0,3 | p>0,05* |
| χ± SD | p | |
| Vaginitis | ||
| No (24) | 1108,96 ± 752,72 | p>0,05** |
| Yes (4) | 698,63 54,13 | |
| TTTS stage | ||
| Stage II (20) | 1014,97 ± 691,48 | p>0,05** |
| Stage III (4) | 1438,29 ± 1201,68 | |
| Stage IV (3) | 941,61 ± 303,15 | |
| Placental position | ||
| Posterior placenta (17) | 899,68 ± 430,16 | p>0,05** |
| Anterior placenta (10) | 1304,21 ±1003,31 | |
| sIUGR | ||
| no (15) | 1126,83 ± 812,67 | p>0,05** |
| yes (12) | 950,72 ± 569,62 | |
| postVEGF-R1 Factors |
postVEGF-R1 | |
| SD | p | |
| Surgical method | ||
| Laser selective umbilical cord ablation | 929,35 ± 566,15 | p>0,05** |
| Laser selective vascular anastomoses coagulation | 1252,29 ± 895,29 | |
| r | p | |
| Surgery duration (minute) | 0,06 | p>0,05* |
| Amniotic fluid drainage volume (ml) | -0,2 | p>0,05* |