CAI Xiao-hua,OU Jian-ping,LI Tao.Correlation Between Blastocyst Morphology Score, Early Serum β-hCG Concentrations and Live Birth After Thawed Single Blastocyst Transfer[J].Journal of Sun Yat-sen University(Medical Sciences),2023,44(03):497-503.
CAI Xiao-hua,OU Jian-ping,LI Tao.Correlation Between Blastocyst Morphology Score, Early Serum β-hCG Concentrations and Live Birth After Thawed Single Blastocyst Transfer[J].Journal of Sun Yat-sen University(Medical Sciences),2023,44(03):497-503. DOI: 10.13471/j.cnki.j.sun.yat-sen.univ(med.sci).2023.0318.
Correlation Between Blastocyst Morphology Score, Early Serum β-hCG Concentrations and Live Birth After Thawed Single Blastocyst Transfer
To assess the correlation between blastocyst morphology score, serum human chorionic gonadotropin β subunit (β-hCG) levels on day 12 after transfer and live birth outcomes among cycles tested HCG-positive after thawed single blastocyst transfer; to analyze the predictive value of serum β-hCG levels on live birth.
Methods
2
We reviewed the data of 519 frozen-thawed single blastocyst transfer cycles (FET) that had been tested HCG-positive from January 2016 to May 2020 at our IVF center. These FET cycles were firstly divided into 4 groups (AA, AB, BA, and BB) according to Gardner's grading system of inner cell mass (ICM) and trophectoderm cell (TE), and then 4 groups (stages 3, 4, 5 and 6) according to the degree of blastocyst expansion. Serum β-hCG concentrations on day 12 after transfer and live birth rates were compared among groups transferred with different blastocysts grading and expansion stage. The relationship between Gardner’s grading or expansion stage of blastocysts and serum β-hCG levels was determined by correlation test, and ROC curves were plotted to determine the threshold values of serum β-hCG for predicting live birth.
Results
2
(1) The serum β-hCG concentration in the AA group and AB group on the 12th day after the transfer was significantly higher than that in the BB group (
P
<
0.001,
P
<
0.001). However, there was no significant difference in the live birth rate when different ICM/TE-graded blastocysts were transferred (
P
= 0.120). There were no significant differences in serum β-hCG concentration on day 12 after transfer and live birth rate among blastocysts with different expansion stages (
P
= 0.091,
P
= 0.557). (2) There was a significant weak correlation between blastocyst ICM/TE grading and serum β-hCG concentration on day 12 (
r
s
= -0.221,
P
<
0.001), and even after controlling for confounding factors (
r
s
= -0.228,
P
<
0.001);There was no significant correlation between blastocyst’s expansion stage and serum β-hCG concentration on day 12 after the transfer (
r
s
= -0.052,
P
= 0.240), and the association remained insignificant after controlling for confounding factors (
r
s
= -0.029,
P
= 0.508). (3) ROC curve analysis showed that the cut-off value for predicting live birth by serum β-hCG on day 12 was 657.5 mU/mL (
P
<
0.001).
Conclusions
2
Neither the ICM/TE grade nor the expansion stage of blastocysts affect the live birth rate,there is significant difference in the level of β-hCG produced by blastocyst with different ICM/TE grade;Our results suggest that early serum β-hCG level can predict live birth.
关键词
Keywords
references
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Related Author
WANG Hui-tian
LI Tao
LIU Yan
CHEN Li
YANG Xia
HAO Li-juan
KANG Xiang-jin
LI Lei
Related Institution
Fertility Center, The Third Affiliated Hospital of Sun Yat-sen University
Department of Gynecological Endocrinology,Chongqing Health Center for Women and Children
Center for Reproductive Medicine, The Third Affiliated Hospital of Guangzhou Medical University//Key Laboratory for Reproductive Medicine of Guangdong Province//Key Laboratory for Major Obstetric Diseases of Guangdong Province//Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes
(Reproductive Medicine Center,Sixth Affiliated Hospital of Sun Yat-Sen University,,)
Reproductive Center,Sun Yat-sen Memorial Hospital,Sun Yat-sen University