The objective of this study is to evaluate the efficacy of embryo transfer procedure guided by transvaginal ultrasound versus abdominal ultrasound in recipients of oocytes as well as the advantages and disadvantages of the new technique.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
330
Embryo transfer in oocyte recipients
Clinica EUGIN
Barcelona, Barcelona, Spain
Clinical pregnancy rate
Evidence of gestational sac by transvaginal ultrasound
Time frame: 40 days after embryo transfer
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