Anesth Analg:间歇使用催产素预处理对人子宫肌层收缩性的影响

2018-03-22 符校魁 “罂粟花”微信号

分娩时长期连续使用催产素可诱导催产素受体脱敏,这减弱了子宫肌层对催产素的反应,增加了产后出血的风险。文章比较间歇使用与连续使用催产素用于诱导分娩产生的结果。旨在确定间歇性或连续性使用催产素对子宫肌层后续使用催产素反应性的影响。我们假设了间歇性催产素预处理会导致比连续性催产素预处理更好的后续催产素收缩性。

背景:分娩时长期连续使用催产素可诱导催产素受体脱敏,这减弱了子宫肌层对催产素的反应,增加了产后出血的风险。文章比较间歇使用与连续使用催产素用于诱导分娩产生的结果。旨在确定间歇性或连续性使用催产素对子宫肌层后续使用催产素反应性的影响。我们假设了间歇性催产素预处理会导致比连续性催产素预处理更好的后续催产素收缩性。

方  法:该体外研究使用从剖宫产妇女处获得的子宫肌层进行。 分为:(1)对照组(未预处理); (2)连续使用催产素组(用催产素10--5M预处理2小时);(3)间歇性使用催产素组(每15分钟交替使用催产素10-5M和生理盐水预处理2小时)。 预处理后,使用10-10至10-5 M剂量的催产素进行反应测试并测量收缩参数。主要测量结果是收缩的运动指数(MI=幅度×频率)。

结  果:与连续使用催产素相比,人类子宫肌层对间歇使用催产素的后续反应更加敏感,这很可能是由于催产素受体脱敏的减少或间歇组中受体再敏化的形成。 因此,在分娩期间歇使用催产素给药作为改善子宫催产素反应性的技术,需要进一步研究。

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    2018-07-19 AspirantSuo
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    2018-05-01 经常头晕
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    2018-03-24 zhanfl

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