Heart:患有心脏病孕妇在第三产程催产素该怎么用?

2016-12-23 haofan MedSci原创

患有心脏病的孕妇在第三产程的管理中额外给予2 U催产素不会引起心脏不良结局,单可以显著降低产后出血量。在更大的患有心脏病的孕妇群体中进行进一步的大型研究是有必要的。

对于患有心脏病的孕妇,需要对第三产程进行减少催产素剂量的管理,因为催产素可以产生显著的心血管不良反应。然而,患有心脏病的孕妇有较高的产后出血发生率;近日,在心脏病领域权威杂志Heart上发表了一篇研究文章,研究人员设计了一项前瞻性研究探讨给予高剂量催产素是否安全以及能否降低产后出血发生率。

研究人员进行了一项单中心、前瞻性队列研究,比较了标准的“小剂量”催产素输注(10U催产素溶于500 ml生理盐水,静滴36mL/h,4 h,即为12mU/min,n=29)和小剂量输注的基础上在分娩结束后10min内立即给予额外的2U催产素(n=30)。研究人员对产妇每隔10 分钟进行一次血压测量,并且通过Holter对产妇进行连续心电图监测,以及记录产妇在此期间出现的任何症状(胸痛、呼吸困难)。在产后12小时测定产妇总失血量和血清肌钙蛋白水平。

研究人员发现所有研究对象均未出现心脏症状、心律失常,血清肌钙蛋白增加和ST段改变等症状。在额外给予催产素的产妇血压下降和心率加快的程度要明显增大,但在统计学上或临床上均无显著意义。在额外给予催产素的产妇产后出血量明显减少(505 vs. 849mL),而且产后出血的产妇比例也有所减少。

由此可见,患有心脏病的孕妇在第三产程的管理中额外给予2 U催产素不会引起心脏不良结局,单可以显著降低产后出血量,然而在更大的患有心脏病的孕妇群体中进行进一步的大型研究是有必要的。

原始出处:

Matthew Cauldwell,et al. The management of the third stage of labour in
women with heart disease.
Heart. 2016. 

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