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Cryosurvival of Embryos From Dysmorphic Oocytes

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00521443
Enrollment
Unknown
Registered
2007-08-27
Start date
Unknown
Completion date
Unknown
Last updated
2007-08-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Blastocyst, Cryopreservation

Brief summary

Various morphological abnormalities of human oocytes were reported to detrimentally affect embryo development. We observed development of frozen thawed embryos derived from oocytes with normal or abnormal morphological features to the blastocyst stage. Cytoplasmic abnormalities of the oocytes were found to negatively affect cryosurvival potential of the embryos.

Interventions

PROCEDURECryopreservation, thawing and blastocyst culture

Good quality human embryos were frozen - thawed and cultured to the blastocyst stage.

Sponsors

V.K.V. American Hospital, Istanbul
Lead SponsorOTHER

Study design

Observational model
DEFINED_POPULATION
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 45 Years

Inclusion criteria

* Human embryos derived from morphologically normal or abnormal mature oocytes that fertilized normally by microinjection procedure. * Embryos were obtained from couples who refused to freeze their supernumerary embryos after fresh embryo transfer in an assisted reproduction treatment cycle.

Exclusion criteria

* Embryos obtained after microinjection to immature oocytes taht were in vitro matured in culture. * Embryos obtained from abnormally fertilized zygotes.

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026