1. A. Pujol, MJ. Zamora, A. Obradors, D. Garcia,
Comparable reproductive outcomes in open vs closed oocyte vitrification systems: a prospective, paired study on the same genetic background and stimulation protocol
A. Pujol, MJ. Zamora, A. Obradors, D. Garcia,
A. Rodriguez, R. Vassena

2. 6 MII Rapid-i Recipient 1 Min. 6 MII Cryotop Recipient 2 83 oocyte
Materials and Methods
83 oocyte
donors
Min.
12 MII
6 MII Rapid-i
6 MII Cryotop
Recipient 1
Recipient 2

3. Results Rapid-i vs Cryotop
Survival
478 / 510 (93.7%)
454 / 527 (86.1%)
p<0.001
Fertilization
279 / 475 (58.7%)
282 / 405 (69.6%)
Biochemical pregnancy
36 / 71 (50.7%)
29 / 70 (41.4%)
p>0.05
Clinical pregnancy
32 / 71 (45.1%)
27 / 70 (38.6%)
Ongoing pregnancy
23 / 70 (32.9%)
Live birth
26 / 69 (37.7%)
22 / 69 (31.9%)

4. Conclusions
Both closed and open oocyte vitrification/warming systems offer comparable laboratory and reproductive outcomes up to live birth.
Participants of the study were oocyte donors. Care when translating our results to other populations.

5. Thank you!