Ultrasonographic-guided embryo transfer does not enhance pregnancy rates compared with embryo transfer based on previous uterine length measurement.
OBJECTIVE
To compare pregnancy rates (PRs) after ultrasound-guided embryo transfer and embryo transfer based on ultrasonographic length measurement.


METHODS
Prospective intervention group combined with retrospective control group.


METHODS
University fertility clinic.


METHODS
Patients undergoing IVF and intracytoplasmic sperm injection.


METHODS
Transabdominal ultrasonographic guidance at embryo transfer.


METHODS
Pregnancy and implantation rates.


RESULTS
In 367 ultrasound-guided embryo transfers clinical PR, ongoing PR, and implantation rate were 35.1%, 31.1%, and 24.3%, respectively. In 363 embryo transfers based on previous ultrasonographic length measurement, the rates were 33.9%, 29.5%, and 24.2%, respectively. There were no statistical significant differences between the groups.


CONCLUSIONS
Ultrasonographic guidance does not show any benefit in terms of PR and implantation rate compared to previous ultrasonographic length measurement, an other precise and atraumatic transfer technique.
Lambers
Marieke J
MJ
Department of Obstetrics, Gynecology and Reproductive Medicine, Free University Medical Center (VUmc), Amsterdam, The Netherlands. mj.lambers@vumc.nl
Dogan
Erbil
E
Kostelijk
Hanna
H
Lens
Jan Willem
JW
Schats
Roel
R
Hompes
Peter G A
PG
D000328:Adult; D004624:Embryo Transfer; D004622:Embryo, Mammalian / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D011247:Pregnancy; D018873:Pregnancy Rate; D012189:Retrospective Studies; D014463:Ultrasonography / Q000379:methods*; D014599:Uterus / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*