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沉睡18年的胚胎苏醒 中国最“抗冻”宝宝出生

2016-12-29 中国青年报 中国青年报

导读 6月27日,中国最“抗冻”宝宝诞生。当这名中国最“抗冻”宝宝还是一枚胚胎的时候,曾在复旦大学附属妇产科医院上海集爱遗传与不育诊疗中心(以下简称“集爱”)安静地“沉睡”了18年,直到去年11月初,被该中心的陈华医生“唤醒”,并成功移植到黄琼的子宫内。中国最“抗冻”宝宝6月27日,45岁的黄琼(化名)于江苏顺利诞下一名女婴,婴儿身体指标一切正常。当这名中国最“抗冻”宝宝还是一枚胚胎的时候,曾在复

导读 6月27日,中国最“抗冻”宝宝诞生。当这名中国最“抗冻”宝宝还是一枚胚胎的时候,曾在复旦大学附属妇产科医院上海集爱遗传与不育诊疗中心(以下简称“集爱”)安静地“沉睡”了18年,直到去年11月初,被该中心的陈华医生“唤醒”,并成功移植到黄琼的子宫内。


中国最“抗冻”宝宝


6月27日,45岁的黄琼(化名)于江苏顺利诞下一名女婴,婴儿身体指标一切正常。当这名中国最“抗冻”宝宝还是一枚胚胎的时候,曾在复旦大学附属妇产科医院上海集爱遗传与不育诊疗中心(以下简称“集爱”)安静地“沉睡”了18年,直到去年11月初,被该中心的陈华医生“唤醒”,并成功移植到黄琼的子宫内。

2015年年初,当陈华看到黄琼的病历号——“1998-01XX”时心里一愣:“这可是中心1998年成立最初的‘元老级粉丝’啊!估计是符合二孩政策来生二孩的吧。”

详细询问病史后才得知,黄琼曾因输卵管堵塞于1998年在中心接受了辅助生殖治疗,一次新鲜胚胎移植与两次冷冻胚胎移植失败后,黄琼没了信心:“加上当时工作繁忙,我们想等等再说吧。”这一等就是18年。一位熟人在陈华的治疗下喜得双胞胎的消息给了黄琼希望:“我还有冻胚在集爱呢,再来试试吧!”

复旦大学附属妇产科医院陈晓军主任医师亲自给黄琼主刀,在腹腔镜下切除了黄琼大量积水的输卵管,剔除了子宫肌瘤,同时用宫腔镜排除了宫腔问题。手术成功后,黄琼开始了近一年的冷冻胚胎复苏移植周期,在陈华的个性化治疗方案,与B超室、胚胎实验室的积极配合下顺利移植。

两周后,黄琼回到中心检测HCG血值,当她听到自己怀孕的消息,她紧紧地抱住了陈华:“谢谢您,陈医生!给了我宝宝,创造了奇迹!”“也要谢谢你,是你给了我们创造奇迹的机会!”陈华说。

据介绍,冷冻胚胎技术是将胚胎置于零下196℃的液氮中,在这样的环境下,胚胎里的细胞生命几乎是完全静止的,但并非中断。冷冻胚胎可以使其得到长时间的保存,目的是为了在以后的治疗周期中不再诱发排卵,仅通过移植复苏胚胎获得妊娠,既节约费用,又在最大限度上利用胚胎。

据该中心孙晓溪副院长回忆:“18年前,胚胎玻璃化冷冻技术还未运用于中国辅助生殖领域,胚胎冷冻大多采用程序化慢冻技术,胚胎解冻后存活率约为80%,当时的妊娠成功率平均只有30%左右。”如今,胚胎玻璃化冷冻技术愈发成熟,去年该中心冷冻胚胎解冻后移植率约为99.5%,移植后临床妊娠率约为43.4%。

至于冷冻胚胎的保存期限,目前国内尚无出台相应的法律法规。一般国际上各个国家冷冻胚胎保存期限在5~10年,上海市卫生局于2013年发布的《关于做好本市人类辅助生殖技术服务项目质量控制的通知》中则建议:由于长期冻存胚胎可能带来生育风险以及社会伦理问题,按国际通行原则冻存胚胎临床使用时间一般控制在5年之内。在实际操作层面,医院对于冷冻胚胎的处理慎之又慎,集爱中心胚胎实验室主任孙贻娟称:“只要患者没有签署《放弃冷冻胚胎知情同意书》,就算他们逾期不交保存费,甚至失联,我们也会帮助他们继续冷冻胚胎。”

全面二孩政策落地之后,辅助生殖中心门诊激增,医院中剩余的冷冻胚胎给了许多妈妈生二胎的希望。对于打算用冷冻胚胎再生育的女性,陈华说:“需要对自身子宫内膜厚度、剖宫产疤痕等身体状况做全面检查,看是否适合再生育,同时,年龄也很关键,建议尽早生育。”

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    2016-12-31 ailian1202
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    2016-12-29 thlabcde

    新食物好东西!

    0

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