the relationship between uterine artery two-dimensional color doppler measurement and pregnancy outcome: a prospective observational study

background: the purpose of the study was to evaluate the role of uterine blood flow parameters measured by uterine artery two-dimensional (2d)-power color doppler (pcd) ultrasound in predicting fertility outcomes in women undergoing ivf-et cycles. methods: in this prospective observational study, a total of 188 infertile women who underwent ivf-et cycles were investigated. uterine artery 2d-pd measurements were taken during early follicular phase and on day of trigger. pulsatility index (pi), resistant index (ri), peak systolic velocity (psv), and systolic/diastolic ratio (s/d) were measured. statistical correlation was sought between the doppler parameters and fertility outcomes. results: the pregnancy rate was 40.43% (76/188). the women who conceived (n=76) (group a) were found to have mean age of 31.2±3.9 years whereas the non-pregnant group of women (n=112) (group b) had mean age of 31.45±4.25 years. the mean pi measurements subsequently during early follicular phase and on the day of hcg trigger between group a and group b were comparable (2.09±1.15 versus 1.9±0.95; p=0.385 and 1.86±1.12 versus 2.03±1.0; p=0.192, respectively). no significant changes in the uterine artery psv values and s/d values and ri were noted during the cycle. conclusion: uterine artery doppler evaluation in women undergoing ivf cycles was not predictive of the pregnancy outcomes.