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Cytoplasmic pitting has a negative influence on implantation outcome
Thomas Ebner1, Gernot Tews, Michael Sommergruber
1Women's General Hospital, IVF-Unit, Lederergasse 47, A-4020 Linz, Upper Austria, Austria. thomas.ebner@gespag.at
Journal of Assisted Reproduction and Genetics
|July 19, 2005
Summary
Cytoplasmic pitting in embryos, though not affecting implantation or pregnancy rates, was linked to a higher rate of early pregnancy loss. Culture conditions may influence this controversial morphological phenomenon.
Area of Science:
- Embryology
- Reproductive Medicine
- In Vitro Fertilization (IVF)
Background:
- Cytoplasmic pitting is a controversial morphological feature observed in embryos.
- Understanding its impact on In Vitro Fertilization (IVF) outcomes is crucial.
Purpose of the Study:
- To investigate the influence of cytoplasmic pitting on IVF treatment outcomes.
- To determine if cytoplasmic pitting affects implantation, pregnancy, and early gestation.
Main Methods:
- Retrospective analysis of 401 patients and 484 IVF treatment cycles.
- Evaluation of cytoplasmic texture and its correlation with clinical outcomes.
Main Results:
- Cytoplasmic pitting was reduced in single embryo culture compared to group culture (p < 0.01).
- No correlation was found between cytoplasmic texture and implantation or pregnancy rates.
- A significantly higher proportion of gestational sacs vanished in cycles with exclusive transfer of pitted embryos (p < 0.05).
- Obstetric and perinatal outcomes were unaffected.
Conclusions:
- Culture conditions may promote cytoplasmic pitting.
- Severe cytoplasmic pitting can potentially lead to early pregnancy loss.
- Further research is needed to clarify the role of cytoplasmic pitting in embryo development and IVF success.
