A comparative study of post-warming survival rates and clinical outcomes of human blastocysts vitrified/warmed by CryoTouch and Cryotop methods.
- Resource Type
- Academic Journal
- Authors
- Keshavarzi S; Infertility Clinic, Erfan Niayesh Hospital, Iran University of Medical Sciences, Tehran, Iran.; Eftekhari AD; Mehr Fertility Research Center, Guilan University of Medical Sciences, Rasht, Iran.; Vahabzadeh H; Mehr Fertility Research Center, Guilan University of Medical Sciences, Rasht, Iran.; Mehrafza M; Mehr Fertility Research Center, Guilan University of Medical Sciences, Rasht, Iran.; Taheripanah R; Infertility Clinic, Erfan Niayesh Hospital, Iran University of Medical Sciences, Tehran, Iran.; Men's Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.; Asgharnia M; Islamic Azad University, Rasht Branch, Rasht, Iran.; Esfandyari S; Infertility Clinic, Erfan Niayesh Hospital, Iran University of Medical Sciences, Tehran, Iran.; College of Medicine, University of Illinois at Chicago, Chicago, IL, USA.; Ghazifard A; Infertility Clinic, Erfan Niayesh Hospital, Iran University of Medical Sciences, Tehran, Iran.; Hosseinirad H; Infertility Clinic, Erfan Niayesh Hospital, Iran University of Medical Sciences, Tehran, Iran.; Paktinat S; Infertility Clinic, Erfan Niayesh Hospital, Iran University of Medical Sciences, Tehran, Iran.
- Source
- Publisher: Brazilian Society of Assisted Reproduction Country of Publication: Brazil NLM ID: 101684552 Publication Model: Electronic Cited Medium: Internet ISSN: 1518-0557 (Electronic) Linking ISSN: 15175693 NLM ISO Abbreviation: JBRA Assist Reprod Subsets: MEDLINE
- Subject
- Language
- English
Objective: Advances in embryo culture conditions and the development of vitrification as a revolutionary cryopreservation method have allowed for routine use of blastocyst transfer in assisted reproduction technology (ART) cycles. Several vitrification/warming media and devices have been introduced for commercial use so far. The aim of this retrospective study was to compare post-warming survival rates and clinical outcomes of human blastocysts vitrified/warmed by two different commercial methods (CryoTouch and Cryotop) during ART cycles.
Methods: This retrospective study assessed a total of 50 frozen embryo transfer (FET) cycles conducted on 56 warmed blastocysts between January 2018 and December 2020. Post-warming blastocyst survival rates and clinical outcomes including clinical pregnancy and live birth rates were calculated after single blastocyst transfer cycles.
Results: The results revealed no significant differences between two groups in post-warming survival rate (p-value=0.8381), clinical pregnancy rate (p-value=0.8157) and live birth rate (p-value=0.7041).
Conclusions: Post-warming survival rates and clinical outcomes were comparable with no significant difference in blastocysts vitrified/warmed by CryoTouch and Cryotop commercial methods.