Effect of Sequential Embryo Transfer in vitro Fertilization / 대한불임학회지
Korean Journal of Fertility and Sterility
;
: 75-82, 2000.
Article
in Korean
| WPRIM
| ID: wpr-56193
ABSTRACT
OBJECTIVE:
The objective of this study is to nfluence of sequential embryo transfers in an invitro fertilization was examined.METHOD:
After in vitro fertilization, a maximum of 6 fertilized oocytes was enrolled in this study. At day 3 after an oocytes retrieval, embryos with good quality were transferred (mean 4.9), remaining embryos (mean 2.0/cycle) were cryopreserved at blastocyst stage (Group 1). At day 5 after oocytes collection, second a embryos had reached the blastocyst stage (Group 2) using P1 supplemented with 10 SSS and 30% Follicular fluid. No statistical difference in the pregnancy rate could be seen between the group without a second embryo transfer (n=21; 28.6%) and the group with a second transfer (n=52; 28.8%).RESULTS:
The incidence of multiple pregnancy rate per embryo transfer was not statistically different between both group and no high-rank multiple pregnancy (greater than triplete) were observed (o.9%, 15.4%, respectively, p=0.74, chi2). Out of 114 cycles (506 embryos) cultured embryos in group 2, 52 cycles (159 embryos, 29.8%) reached the blastocyst stage.CONCLUSION:
The second transfer did not have a significant effect on the pregnancy rate. The most important factor for the pregnancy seems to be the quality of the embryos transferred on day 3 following oocyte retrieval. We recommend embryo transfer is performed only one, day 2~3 or D5.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Oocytes
/
Pregnancy, Multiple
/
Blastocyst
/
Fertilization in Vitro
/
Follicular Fluid
/
Incidence
/
Pregnancy Rate
/
Embryo Transfer
/
Embryonic Structures
/
Oocyte Retrieval
Type of study:
Incidence study
/
Prognostic study
Limits:
Pregnancy
Language:
Korean
Journal:
Korean Journal of Fertility and Sterility
Year:
2000
Type:
Article
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