Skip to main content

Advertisement

Table 2 Clinical outcomes of open and closed vitrification

From: Neonatal outcomes after the transfer of vitrified blastocysts: closed versus open vitrification system

  Open vitrification Closed vitrification P value
  (106 cycles) (226 cycles)  
Cryosurvival rate 147/150 (98.0) 295/308 (95.8) 0.224
Cancellation rate 3/106 (2.8) 8/226 (3.5) 0.736
Clinical pregnancy rate/transfer 49/103 (47.6) 92/218 (42.2) 0.365
Implantation rate/transferred blastocysts 63/147 (42.9) 105/295 (35.6) 0.138
Pregnancy loss    
Miscarriage rate/pregnancy 8/49 (16.3) 21/92 (22.8) 0.363
Ectopic rate/pregnancy 0 1/92 (1.1) 1.000
Live birth rate/transfer 41/103 (39.8) 70/218 (32.1) 0.176
Complications during pregnancies    
Gestational diabetes 1/103 (0.97) 3/218 (1.3) 0.760
Hypertension 1/103 (0.97) 2/218 (0.92) 0.963
Placenta previa 0 1/218 (0.4) 1.000
Mode of delivery    
Spontaneous vaginal delivery 5/41 (12.2) 10/70 (14.3) 0.756
Cesarean section 36/41 (87.8) 60/70 (85.7) 0.756
  1. Values are n or n/total (%).