Related Experiment Videos
A Wallace malleable stylet for difficult embryo transfer in an in vitro fertilization program: a case-control study
Ingrid Kirstine Nielsen1, Anette Lindhard, Anne Loft
1The Fertility Clinic, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, Copenhagen, Denmark.
Acta Obstetricia Et Gynecologica Scandinavica
|April 12, 2002
Summary
The Wallace malleable stylet aids difficult embryo transfers (ET) without negatively impacting implantation or delivery rates. This tool ensures successful embryo replacement when cervical manipulation is challenging.
Area of Science:
- Reproductive Medicine
- In Vitro Fertilization
Background:
- Difficult embryo transfer (ET) can complicate assisted reproductive technology procedures.
- The Edwards-Wallace embryo replacement catheter is commonly used for ET.
Purpose of the Study:
- To evaluate the impact of a Wallace malleable stylet used with an Edwards-Wallace embryo replacement catheter during difficult embryo transfers.
- To assess if the stylet affects key reproductive outcomes.
Main Methods:
- A retrospective case-control study compared embryo transfers with and without the Wallace malleable stylet.
- The stylet was used in 10% of fresh ET cases experiencing difficulty.
- A control group of 410 ETs was matched to the stylet group.
Main Results:
- No significant differences were observed in the number of embryos transferred, cleavage stage, or embryo morphology between groups.
- Implantation rates were similar: 20.7% (stylet group) vs. 19.2% (control group).
- Delivery rates were also comparable: 29.3% (stylet group) vs. 25.4% (control group).
Conclusions:
- The use of a Wallace malleable stylet with an Edwards-Wallace embryo replacement catheter does not adversely affect implantation or delivery rates in cases of difficult embryo transfer.
- The stylet is a safe adjunct for managing challenging cervical canals during ET.