Effect of water intake before embryo transfer on ultrasound imaging during embryo transfer based on POCUS
Objective Based on point-of-care ultrasound(POCUS)technology,this study explores the appropriate water in-take for patients before transplantation,the effects of different drinking volumes on embryo transfer imaging,implantation success rate,and endometrial peristalsis.Methods This study was a prospective randomized study,including 324 patients who underwent frozen embryo transfer cycles at the Clinical Center of Reproductive Medicine of People's Hospital from September 2023 to February 2024.The patients were divided into three groups with water intakes of 300 mL,500 mL,and 700 mL.Water intake from morning until trans-fer was controlled at 300 mL,and the bladder was emptied 2 hours before transfer.The effectiveness of bladder fullness before transfer in the three groups was recorded.Based on POCUS technology and three-dimensional ultrasound immediately after transfer,the correla-tion of patient water intake,bladder filling effect,post-transfer endometrial peristalsis,patient satisfaction,and pregnancy outcomes was observed and analyzed.Results According to POCUS analysis,patients who drank 700 mL of water achieved the best and quickest bladder fullness imaging effect without causing discomfort(P＜0.05).There were no statistically significant differences in the patients'morning water intake,satisfaction scores,rates of difficult transfer,frequency of endometrial peristalsis(P＞0.05).Multifactorial analysis suggested that water intake and bladder fullness had no di-rect correlation with pregnancy outcomes,only affecting imaging re-sults.Conclusion The results of this study indicate that water in-take is closely related to the degree of bladder fullness and the clarity of ultrasound imaging.However,it has no significant impact on uter-ine contractions or pregnancy outcomes of embryo transfer.To achieve better imaging results,it is recommended to drink 700 mL of water before embryo transfer.
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