Does rotation during catheter withdrawal in embryo transfer increase pregnancy rates

BACKGROUND The aim of this study was to determine whether there is a difference in pregnancy rates between groups that we removed directly and removed by rotating the embryo transfer catheter 360 degrees. METHODS The study group consisted of 552 patients who were withdrawn by 360 degrees rotation and 797 patients who were withdrawn without catheter rotation. Fresh 1 or 2 embryos developed on 2.-3. or 5. days were transferred to all cases using Wallace soft catheter. Groups were compared in terms of cycle characteristics and clinical pregnancy rates. RESULTS There were no significant differences in demographic and clinical characteristics of both groups such as age, BMI, duration of infertility, causes of infertility, and basal hormone levels. Clinicals pregnancy rate per ET, in the study group, 48% (265/552) and in the control group, 50.8% (405/797) were similar in both groups. When the implantation rate and miscarriage rate were examined, both groups were found to be similar. CONCLUSION It was found that 360 degree rotation while pulling catheter during embryo transfer had no effect on pregnancy and clinical pregnancy.