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Korean Journal of Obstetrics & Gynecology 1999;42(2):287-295.
Published online January 1, 2001.
Clinical Significance of Endometrial Thickness and Pattern in Ovum Donation and Cryopreserved - Thawed Embryo Transfer Program.
Shin Yong Moon, Young Min Choi, Seok Hyun Kim, Chang Suk Suh, Jin Yong Lee, Jung Gu Kim, Byung Chul Jee, Seo Yeong Park
To investigate the clinical significance of endometrial thickness and pattan as a predictor of successful implantation of embryos in ovum donation and cryopreserved-thawed embryo transfer program. METHODS: From January, 1996 to March, 1998, 31 cycles of ovum donation and 31 cycles of cryopreserved-thawed embryo transfer were enrolled in this prospective study. Endometrial thickness was measured three times: prior to progesterone administration (P), 1 day and 3 days after P. In cryopreserved-thawed embryo transfer cycles, the measurement at 1 day after P was omitted. Endometrial pattern was observed prior to progesterone, and was considered meaningful when a multi-layered triple-line was seen with prominent outer and central hyperchogenic lines and inner hypoechogenic regions. RESULTS: There were no differences in embryo quality, dose or duration of estrogen, and endometrial thickness or pattern between conception and non-conception cycles in both ovum donation and cryapreserved-thawed embryo transfer pmgram. In ovum donation cycles, no cortelation was observed between estrogen dose and endometrial thickness or pattern. In cryopreserved-thawed embryo transfer cycles, total estrogen dose and endometral thickness at 3 days after P has a inverse correlation, and estrogen dose over 4.3 mg per day can predict expression of a multi-layered triple-line pattern, CONCLUSION: Endometrial thickness or pattern. cannot predict a successful implantaion of embryos in both ovum donation and cryopreserved-thawed embryo transfer cycles.
Key Words: Endometrial thickness, Endometrial pattern, Ovum donation, Cryopreserved-thawed embryo transfer

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