SummaryIn this report, we present a case of a couple who obtained a live birth with a single oocyte fertilized by intracytoplasmic sperm injection. The oocyte was collected at 36 h post trigger and was found to be at metaphase II when sperm injection was performed. At 18 h post injection, the oocyte was found to be fertilized with two clear pronuclei. The embryo divided and generated a four-cell embryo on day 2, which was replaced to the uterine cavity. Pregnancy test gave a positive β-human chorionic gonadotropin result, the scan performed at 7 weeks, revealed the presence of one amniotic sac with fetal heartbeat. Healthy live birth was obtained after 39 weeks of gestation.

中文翻译：

---

单卵母细胞在第 2 天用 ICSI 受精和胚胎移植后活产：病例报告

摘要在本报告中，我们介绍了一对夫妇通过胞浆内精子注射获得了一个单卵母细胞的活产案例。在触发后 36 小时收集卵母细胞，并在进行精子注射时发现卵母细胞处于中期 II。在注射后 18 小时，发现卵母细胞有两个清晰的原核受精。胚胎在第 2 天分裂并产生一个四细胞胚胎，将其替换到子宫腔中。妊娠试验显示β-人绒毛膜促性腺激素结果呈阳性，7 周时进行的扫描显示存在一个羊膜囊并伴有胎儿心跳。妊娠39周后获得健康活产。