Abdominal Versus Transvaginal Ultrasound Guided Embryo Transfer: Results of a Randomized Clinical Trial
Abdominal Versus Transvaginal Ultrasound Guided Embryo Transfer: Results of a Randomized Clinical Trial
Ultrasound (US) guided embryo transfer (ET) appears to improve pregnancy outcomes in IVF-ET. Most reports are done using a transabdominal (TAS) approach, in contrast to a transvaginal ultrasound (TVS) which does not require a full bladder. We sought to determine if either approach was better with respect to clinical outcomes.
Inclusion Criteria:
- All patients undergoing assisted reproductive cycles including autologous IVF, oocyte donation, and frozen embryo transfer (FET) cycles
Exclusion Criteria:
- Cases of severe ovarian hyper-stimulation requiring embryo cryopreservation and gestational surrogate cycles