A retrospective study of single frozen-thawed blastocyst transfer / 대한생식의학회지
Clinical and Experimental Reproductive Medicine
; : 106-111, 2016.
Article
ي En
| WPRIM
| ID: wpr-56130
المكتبة المسؤولة:
WPRO
ABSTRACT
OBJECTIVE: To study the clinical outcomes of single frozen-thawed blastocyst transfer cycles according to the hatching status of frozen-thawed blastocysts. METHODS: Frozen-thawed blastocysts were divided into three groups according to their hatching status as follows: less-than-expanded blastocyst (≤EdB), hatching blastocyst (HgB), and hatched blastocyst (HdB). The female age and infertility factors of each group were evaluated. The quality of the single frozen-thawed blastocyst was also graded as grade A, tightly packed inner cell mass (ICM) and many cells organized in the trophectoderm epithelium (TE); grade B, several and loose ICM and TE; and grade C, very few ICM and a few cells in the TE. The clinical pregnancy and implantation rate were compared between each group. The data were analyzed by either t-test or chi-square analysis. RESULTS: There were no statistically significant differences in average female ages, infertility factors, or the distribution of blastocyst grades A, B, and C in each group. There was no significant difference in the clinical pregnancy and implantation rate of each group according to their blastocyst grade. However, there was a significant difference in the clinical pregnancy and implantation rate between each group. In the HdB group, the clinical pregnancy and implantation rate were similar regardless of the blastocyst quality. CONCLUSION: There was an effect on the clinical outcomes depending on whether the blastocyst hatched during single frozen-thawed blastocyst transfer. When performing single frozen-thawed blastocyst transfer, the hatching status of the frozen-thawed blastocyst may be a more important parameter for clinical outcomes than the quality of the frozen-thawed blastocyst.
Key words
النص الكامل:
1
الفهرس:
WPRIM
الموضوع الرئيسي:
Blastocyst
/
Retrospective Studies
/
Embryo Transfer
/
Epithelium
/
Single Embryo Transfer
/
Vitrification
/
Infertility
نوع الدراسة:
Observational_studies
المحددات:
Female
/
Humans
/
Pregnancy
اللغة:
En
مجلة:
Clinical and Experimental Reproductive Medicine
السنة:
2016
نوع:
Article