Table 5.
Comparison of pregnancy outcome between OHSS and non-OHSS group, literature review
| Studies | Thrombosis rate | Multiple pregnancy rate | Clinical pregnancy rate | Miscarriage rate | Perinatal complication |
|---|---|---|---|---|---|
| Abramov et al. (1998) | 2.5% | 24% versus 3–5% | 73.2% versus 14.4% | 29.5% versus 18.0–22.0% | Preterm (44% vs. 24–29%); LBW (62.1% vs. 24–36%); PIH (13.2% vs. 6.0%) |
| Mathur and Jenkins (2000) | – | 36.1% versus 27.4% | – | 12.1% versus 16.8% | – |
| Luke et al. (2010) | – | 58–86%↑ | 98–168%↑↑ | – | Preterm birth; LBW Stillbirth: 26–31%↑ |
| Courbiere et al. (2011) | 10% | 2.5% versus 2.5% | – | 17.5% versus 16% | Preterm (36.0% vs. 10.7%); PIH (21.2% vs. 9.2%) |
| Current study | 1.58% | 4.0% versus 3.7% | 91.8% versus 45.1% | 14.9% versus 16.3% | No difference |
–: Data not mentioned. ↑: Compared with non-OHSS patients, the multiple pregnancy rate of OHSS patients increased 58%–86%; the rate of perinatal complication including preterm birth, LBW and stillbirth, of OHSS patients increased 26–31%. ↑↑: Compared with non-OHSS patients, the clinical pregnancy rate of OHSS patients increased 98%–168%. PIH: Pregnancy-induced hypertention; LBW: Low birth weight; OHSS: Ovarian hyperstimulation syndrome.