Teng Xiao Ming
Shanghai Medical Association, China
Title: The oocyte-to-baby rate of day 2, day 3 versus day 5 embryo transfer: A retrospective study
Biography
Biography: Teng Xiao Ming
Abstract
The aim of the study was to investigate whether the time of embryo transfer (ET) affect the oocyte-to-baby rate. We analyzed the database retrospectively including total number of oocytes collected and corresponding oocyte to live baby born (LBB) rate and then compared the relationship between different time of embryo transfer and oocyte-to-baby rate. In a year period, all patients undergoing infertility treatment were included in the study. The outcome parameters were total number of oocytes collected and corresponding oocyte to live baby born (LBB). For patients under the age of 35, there was no increase in oocyte to LBB regardless of the time of ET. For patients older than 35, the oocyte use rate increased significantly when embryo transferred on day 2. Oocyte-to-baby rates were also analyzed after grouping patients on the number of oocytes retrieved per cycle. For patients <35, the oocyte to LBB rate increased significantly on day 3 if <10 oocytes were obtained. Whereas for patients >35, the oocyte-to-baby rate was best on day 2 when about 15 oocytes were retrieved. This retrospective analysis demonstrated the relationship between the time of embryo transfer and ooctye-to-baby rate that is indicative of a more biologically efficient reproductive system.