European journal of gynaecological oncology · 2016
Twin delivery after IVF-ET with variable dose letrozole-FSH protocol of lower estradiol in a patient previously treated for breast cancer: a case report.
Клинический случайСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Zhang Chang-Jun, Zhang Ying, Hu Guang-Zhu, Diao Honglu
Аннотация
OBJECTIVE: To present a case of twin pregnancy obtained by in vitro fertilization and embryo transfer (IVF-ET) with variable dose letrozole-FSH protocol of lower peak estradiol level, after treatment of carcinoma of the breast.
MATERIALS AND METHODS: A 34-year-old patient diagnosed with mucinous breast carcinoma undergoing assisted fertilization treatment after breast cancer operation and treatment including controlled ovarian stimulation (COS), oocyte retrieval, IVF, and embryo culture and transfer.
RESULTS: Four oocytes were obtained in three COS procedures in the three IVF cycle. All oocytes were fertilized. In the third cycle, two fresh embryos were transferred, and two healthy girls were born at 37 gestational weeks.
CONCLUSION: Variable dose letrozole-FSH protocol can maintain lower peak estradiol levels and reduce estrogen exposure after breast cancer operation and chemotherapy.
MATERIALS AND METHODS: A 34-year-old patient diagnosed with mucinous breast carcinoma undergoing assisted fertilization treatment after breast cancer operation and treatment including controlled ovarian stimulation (COS), oocyte retrieval, IVF, and embryo culture and transfer.
RESULTS: Four oocytes were obtained in three COS procedures in the three IVF cycle. All oocytes were fertilized. In the third cycle, two fresh embryos were transferred, and two healthy girls were born at 37 gestational weeks.
CONCLUSION: Variable dose letrozole-FSH protocol can maintain lower peak estradiol levels and reduce estrogen exposure after breast cancer operation and chemotherapy.