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Effects of different endometrial preparation regimens on pregnancy outcomes and obstetrical outcomes for first euploid single blastocyst transfer after PGT⁃A
Received date: 2023-04-15
Online published: 2023-12-19
Objective To explore the effects of different endometrial preparation regimens on the pregnancy and obstetrical outcomes of single euploid blastocyst transfer after preimplantation genetic testing for aneuploidies （PGT-A）. Methods The clinical data on patients with single euploid blastocyst transfer after PGT-A in our center from September 2015 to July 2021 were analyzed retrospectively. According to the different preparation regimens， the patients were divided into a natural cycle group （n = 80 cycles） and a hormone replacement cycle group （n = 259 cycles）. The differences of pregnancy and obstetrical outcomes between the two groups were compared. Binary logistic regression was used to explore the influencing factors of pregnancy and obstetrical outcomes after PGT-A. The pregnancy outcomes of different endometrial preparation regimens were further explored by age stratification. Results As compared with that in the natural cycle group， the rate of high-quality blastocyst was significantly higher in the hormone replacement cycle group， but the live birth rate was lower and the abortion rate was higher （P < 0.05）. There was no statistical difference in the clinical pregnancy rate between the two groups. The incidence of cesarean section and macrosomia was higher in the hormone replacement cycle group than that in the natural cycle group， while the rate of low birth weight was lower， but there were no significant differences （P > 0.05）. Binary logistic regression showed that female age was an independent influencing factor of abortion. Female age and the days of blastocyst development were independent influencing factors of live birth. However， endometrial preparation regimen was not a factor affecting pregnancy and obstetrical outcomes （P > 0.05）. The results of further analysis showed that the live birth rate in the natural cycle group was significantly higher than that in the hormone replacement cycle group， while the abortion rate in the natural cycle group was significantly lower than that in the hormone replacement cycle group for female patients aged over 35 （P<0.05）. Conclusions The endometrial preparation regimens did not affect the pregnancy and obstetrical outcomes of patients receiving single euploid blastocyst transfer after PGT-A. However， in the older patients， the natural cycle regimen can obtain a higher live birth rate and a lower abortion rate.
Ningning WANG , Yaping LIU , Xiaoli CHEN , Shiming WANG , Yingchun SU . Effects of different endometrial preparation regimens on pregnancy outcomes and obstetrical outcomes for first euploid single blastocyst transfer after PGT⁃A[J]. The Journal of Practical Medicine, 2023 , 39(21) : 2723 -2729 . DOI: 10.3969/j.issn.1006-5725.2023.21.006
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