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Original Research
Difficulty of embryo-transfer (ET) and pregnancy rate based on the uterocervical angle
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1
ART Clinic for Females, Kumamoto City, Kumamoto (Japan)
Clin. Exp. Obstet. Gynecol. 2008, 35(1), 16–21;
Published: 10 March 2008
Abstract
When the angle formed by the uterine body and cervical axes (uterocervical angle) was less than 115°, a catheter for embryo transfer could not be smoothly inserted into the uterine body, and so a hard catheter was used, which significantly reduced the pregnancy rate and implantation rate. When the uterocervical angle measured before embryo transfer by ultrasonography is less than 115°, careful preparation, such as catheter selection for embryo transfer and the setting of a longer operation time, is necessary.
Keywords
Uterocervical angle
Embryo transfer
Pregnancy rate
Implantation rate