Frozen Blastocyst Transfer during in Vitro Fertilization/Intracytoplasmic Sperm Injection Cycle Lowers the Rate of Ectopic Pregnancy ()
ABSTRACT
This study aimed to determine whether frozen blastocyst transfer can
lower the incidence rate of ectopic pregnancy. A total of 1577 in
vitro fertilization/ intra-cytoplasmic cycles were analyzed,
including 757 fresh D3-ET cycles, 429 frozen D3-ET cycles, and 391 frozen D5-ET
cycles. The
differences of ages, the proportion of IVF cycles, the proportion of primary
infertility, and the proportion of tubal factor between three groups were not
significant. The
clinical pregnancy rate in Frozen D5-ET Group was 62.15%, which was significantly
higher than other two groups (46.10%; 38.93%; P < 0.05). The miscarriage rates of three groups were similar.
The ectopic pregnancy rate in Frozen D5-ET Group was 0.41%, which was
significantly lower than that in Frozen D3-ET Group (2.99%, P < 0.05) and slightly lower than
that in Fresh D3-ET Group (2.29%, P =
0.089). Results from this study show that the transfer of frozen D5 blastocysts
can significantly decrease the incidence rate of ectopic pregnancy.
Share and Cite:
Xing, W. , Cai, L. , Sun, L. and Ou, J. (2017) Frozen Blastocyst Transfer during
in Vitro Fertilization/Intracytoplasmic Sperm Injection Cycle Lowers the Rate of Ectopic Pregnancy.
Open Journal of Obstetrics and Gynecology,
7, 1183-1188. doi:
10.4236/ojog.2017.712120.
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