Ultrasound-guided embryo transfer does not offer any benefit in clinical outcome: a randomized controlled trial

Ultrasound guided embryo transfer does not offer any benefit in clinical outcome: a randomized controlled study.

BACKGROUND Ultrasound-guided embryo transfer (ET) is widely suggested as a standard clinical practice that improves overall embryo implantation and pregnancy rates. Various studies of this issue suffer from methodological pitfalls, so that a randomized controlled trial, which overcomes these problems, might be valuable. METHODS Three hundred women aged <40, who underwent fresh ET, were includ...

embryo transfer does not offer any benefit in clinical outcome : a randomized controlled study

Buckett WM. A meta-analysis of ultrasound-guided versus clinical touch embryo transfer. Fertil Steril 2003;80:1037–1041. Garcia-Velasco JA, Isaza V, Martinez-Salazar J, Landazabal A, Requena A, Remohi J, Simon C. Transabdominal ultrasound-guided embryo transfer does not increase pregnancy rates in oocyte recipients. Fertil Steril 2002;78:534–539. Kan AK, Abdalla HI, Gafar AH, Nappi L, Ogunyemi ...

P-70: Ultrasound Guided Artificial Insemination:A Randomized Controlled Trial

Background: To ascertain whether using ultrasound guidance during intrauterine insemination (IUI) could increase pregnancy rates. Materials and Methods: The population under study consisted of 73 consecutive couples subjected to IUI in our Human Reproduction Unit, between September and December 2006, with a total of 231 IUI cycles performed. The patients were randomized using a computer-generat...

A randomized controlled clinical trial of 2295 ultrasound-guided embryo transfers.

BACKGROUND We wanted to test the hypothesis that using abdominal ultrasound at the time of embryo transfer to guide replacement, improved pregnancy rates by at least 5%. METHODS An RCT in a large assisted conception unit. A pilot study and power calculation suggested that at least 2000 embryo transfers were required to demonstrate a difference of 5%, for a test with 80% power and Type 1 error...

Effect of Progesterone Supplementation on Natural Frozen-Thawed Embryo Transfer Cycles: A Randomized Controlled Trial