基因缺陷无精子症患者有望拥有亲生的“宝宝”

2016-12-27 佚名 上海仁济医院

日前,仁济医院北院精子库负责人陈向锋领衔团队为一例患有克氏综合征的无精子症患者成功取到活精。此次治疗充分发挥了北院生殖男科、上海市人类精子库及生殖医学中心为主体的多学科诊疗模式,完整实现了“药物干预—显微手术取精—精子库冻精—试管婴儿”的一站式服务,为相当一部分无精子症患者带来了新的希望。染色体核型47, XXY又称克氏综合征,患者比正常男性多一条X染色体,临床主要表现为原发性性腺功能低下,小睾丸

日前,仁济医院北院精子库负责人陈向锋领衔团队为一例患有克氏综合征的无精子症患者成功取到活精。此次治疗充分发挥了北院生殖男科、上海市人类精子库及生殖医学中心为主体的多学科诊疗模式,完整实现了“药物干预—显微手术取精—精子库冻精—试管婴儿”的一站式服务,为相当一部分无精子症患者带来了新的希望。

染色体核型47, XXY又称克氏综合征,患者比正常男性多一条X染色体,临床主要表现为原发性性腺功能低下,小睾丸,无精子症。几乎所有的克氏综合征患者只能选择领养或精子库供精。

本例患者在外地已多次检查精液无精子,并治疗多年,对生育自己的后代有强烈的愿望。副主任医师陈向锋在了解病情后首先给予药物干预,在充分调节体内激素水平后,为患者实施了双侧睾丸显微取精术。该手术是常规睾丸取精术的进一步完善,可以有效地采集生精小管内的精子用于后续的“试管婴儿”。尽管此种取精术不是创伤最小的一种选择,但是在采取最少量睾丸组织的前提下,该技术可以确保最大的精子获取率和最小的睾丸功能副损伤。有经验的医生,在25倍放大的显微镜下,可以有效辨别出含有精子的生精小管。

针对本例患者,手术医师经过3个多小时的详细手术探查后,为其找到二十余条活动精子。手术由陈向锋、马逸医师以及麻醉科、护理部、上海市人类精子库等多科人员合作完成。由于精子是细胞级的,以往冻存少量精子极为困难,然而精子库运用最新的稀少精子冷冻技术成功为该患者实施了冷冻保存,且复苏后可见活精。目前,该患者夫妻双方已进入“试管婴儿”流程。

据陈向峰介绍,随着环境、生活、饮食的改变,人类精子质量逐年下降,无精子症患者则不断增加。显微取精术是仁济北院常规开展的手术,主要针对无精子症患者的取精手术。各类无精子症,如化疗后无精、AZFc缺失、隐睾、腮腺炎后睾丸炎等,均有可供临床使用的取精成功率。这些患者通过试管婴儿技术均有可能生育自己的后代。

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