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Table 1 Summary of the hitherto published studies relating to pregnancy complications in patients with severe OHSS

From: Pregnancy outcome in severe OHSS patients following ascitic/plerural fluid drainage

  Abramov et al.[14] Wiser et al.[15] Courbiere et al.[16] Haas et al.[17] Present study
All pregnancies     125  
Number of pregnancies 68 165 40   
Gestational age at delivery (weeks) 35.8 ± 3.0   37 ± 1.5   
Birth weight (grams) 2221 ± 252     
Cesarean Section rate (%) 44.1     
Preterm labor < 37 wks (%) 44   36   
Hypertensive diseases of pregnancy (%) 13.2   21.2   
IUGR (%) 1.5     
Gestational Diabetes (%) 5.9   6   
IUFD (%) 1.5     
Adnexal torsion (%)    5 4.8  
Thromboembolism (%) 1.5   10 1.6  
Paracentesis (%)    2.5 32.8  
Singleton pregnancies      
Number of pregnancies 29 101 31 78 16
Gestational age at delivery (weeks) 37.2 ± 3.2 39 ± 1.9   37.9 ± 3.3  
Birth weight (grams) 2785 ± 356 3045 ± 544 3032 ± 545 2854 ± 610 37.3 ± 5.9
Cesarean Section rate (%) 24.1 24   28.2 43.75
Preterm labor < 37 wks (%) 28 1   20.5 12.5
Hypertensive diseases of pregnancy (%)   6.9   8.9 0
IUGR (%)     2.6  
Gestational Diabetes (%)   9.9   17.9 0
IUFD (%)     1.2 6.2
Adnexal torstion (%)      12.5
Thromboembolism (%)      6.2
Paracentesis (%)      100