[Successful clinical pregnancy after transfer of frozen-thawed embryos]

A case of successful clinical pregnancy after transfer of frozen-thawed embryos was reported in this paper. The woman is a 45,XO karyotype Turner's syndrome patient with primary amenorrhea, and her husband has azospermia. She was given hormone replacement therapy to achieve adequate endometrial development. The donated embryos from two sources were frozen on April 27 and April 30, 1994 respectively. The transfer was done on May 25, 1994. Urinary beta-hCG became positive 14 days later. On July 8th, an intra-uterine embryonic sac containing an embryonic bud with good primitive heart beats was seen under vaginal B-ultrasound. Blood hCG reached 232,900 IU/L on July 25. The pregnancy is going on smoothly. The methods of freezing and thawing embryos were described.