Volume 9, Issue 3 (7-2011)                   IJRM 2011, 9(3): 203-208 | Back to browse issues page

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Zhang X, Yang Y, Min L, Lv Q, Bai P, Li X et al . Successful pregnancy following the transfer of vitrified blastocyst which developed from poor quality embryos on day 3. IJRM 2011; 9 (3) :203-208
URL: http://ijrm.ir/article-1-228-en.html
Successful pregnancy following the transfer of vitrified blastocyst which developed from poor quality embryos on day 3
Xiao-jian Zhang * 1, Ye-zhou Yang2 , Li-hua Min2 , Qun Lv2 , Pin Bai2 , Xiao-jie Li2 , Mei-xu Liao2
1- Department of Assisted Reproductive Medical Center, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, Sichuan, China , xiaojian.z@gmail.com
2- Department of Assisted Reproductive Medical Center, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, Sichuan, China
Abstract:   (2965 Views)
Background: The selection of pre-embryos for transferred is based on morphological appearance. But some poor quality cleaved embryos also can be cultured to the blastocyst stage and implanted.
Objective: To assess the clinical pregnancy outcomes of blastocyst transfer which developed from poor quality embryos.
Materials and Methods: A total of 109 cleaved embryos with poor quality were cultured to day 5/day 6 and 27 (24.8%) blastocysts were collected from the 15 cycles/patients undergoing conventional IVF. All the blastocysts were cooling with fast-freezing. Then the blastocysts were warmed for transfer. Results: All of 25 vitrified blastocysts (92.6%) survived after warming and were transferred to 15 patients. Five of the women became pregnant.
Conclusion: Our results suggest that vitrified human day 5/day 6 blastocyst transfer which develop from poor quality embryo at day 3 can contribute to increasing cumulative pregnancy rates in assisted reproduction.
Keywords: Poor quality embryos, Vitified Blastocyst- transfer, Pregnancy.
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Type of Study: Original Article |
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