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Fertil Steril ; 109(2): 310-314.e1, 2018 02.
Article in English | MEDLINE | ID: mdl-29306491

ABSTRACT

OBJECTIVE: To evaluate the effect of embryo flash position and movement of the air bubbles at 1 and 60 minutes after ET on clinical pregnancy rates (PRs). DESIGN: Prospective clinical trial. SETTING: University fertility clinic. PATIENT(S): A total of 230 fresh ultrasound-guided ETs performed by a single physician (C.F.) at the IVF center of Yeditepe University Hospital between September 2016 and February 2017 were included. INTERVENTION(S): Transabdominal ultrasonographic guidance at ET. MAIN OUTCOME MEASURE(S): Clinical PRs. RESULT(S): There was no significant difference in terms of clinical PRs between women with embryo flash located >15 mm and <15 mm from the fundus at 1 or 60 minutes (P=.6 and P=.7, respectively). The PRs in women with embryo flash located <15 mm and >15 mm from the fundus were 47% and 60%, respectively (P=.6). The clinical intrauterine PRs were 69.5%, 38.5%, and 19.1% in fundal, static, and cervical, respectively. The highest PR was in fundal when compared with others (P<.01). The clinical PR appears to be associated with the embryo flash movement/migration and the PR was dramatically reduced when the embryo migrated from its original position toward the cervix at 60 minutes. CONCLUSION(S): We concluded that clinical PR appears to be associated with the embryo flash movement/migration at 60 minutes after ET and embryo flash movement toward the fundus is associated with higher clinical PRs. Further well-designed randomized controlled trials are required to optimize ET technique in the future.


Subject(s)
Embryo Transfer/methods , Endometrium/diagnostic imaging , Fertilization in Vitro , Infertility/therapy , Ultrasonography, Interventional , Adult , Embryo Implantation , Female , Fertility , Humans , Infertility/diagnosis , Infertility/physiopathology , Male , Pregnancy , Pregnancy Rate , Prospective Studies , Time Factors , Treatment Outcome , Turkey
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