Prognostic appraisal of success and failure in an in vitro fertilization program by transvaginal Doppler ultrasound at the time of ovulation induction.
case_control · Level III
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Abstract
In 323 stimulated cycles of women participating in in vitro fertilization treatment, a transvaginal Doppler examination was performed on the day of ovulation induction to investigate the value of blood flow velocimetry of the uterine artery. The results showed a significantly lower pulsatility index in patients who conceived (n = 42) compared with those who did not become pregnant (n = 272). The differences were especially marked during the first cycles. These results suggest that studies of the uterine hemodynamic response are useful in appraising the likelihood of success of implantation after embryo transfer.