产后外周止痛对孕产妇和胎儿血液动力学的影响:一项前性观察研究
Siqi Wu1,2, Junning Gan1, Yunguang Xing1
1Department of Obstetrics, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Shenzhen, China.
概括
在分娩时的外周止痛 (EA) 会导致母亲的血压和氧和暂时下降,但胎儿的心率和血液流动保持稳定. 这项研究证实了EA的证实.
科学领域:
- 产科和妇科 产科和妇科
- 麻醉学 麻醉学
- 孕产妇和胎儿医学 孕产妇和胎儿医学
背景情况:
- 外周止痛疗法 (EA) 是一种在分娩期间常见的疼痛管理技术.
- 了解EA对母亲和胎儿的血液动力学影响对于安全的产科护理至关重要.
- 之前的研究表明,母亲可能发生血液动力学变化,但胎儿的反应需要进一步详细调查.
研究的目的:
- 预期评估外围止痛 (EA) 在分娩期间对母亲和胎儿血液动力学参数的影响.
- 评估母亲的平均动脉压 (MAP),心率 (HR) 和氧和 (SPO2) 的变化.
- 分析胎儿心率 (FHR) 和动脉 (UA),中脑动脉 (MCA) 和子宫动脉 (UtA) 的多普勒流参数.
主要方法:
- 一项前性观察性研究,涉及100个低风险单胎妊娠,怀孕37-40周.
- 在EA前 (T0) 和EA后15分钟 (T1),30分钟 (T2) 和60分钟 (T3) 测量了母亲和胎儿的血液动力学参数.
- 测量包括UA,MCA和UtA的MAP,HR,SPO2,FHR和多普勒指数 (脉动率指数 - PI,阻力指数 - RI,静脉/透气比 - S/D).
主要成果:
- 母亲的MAP,HR和SPO2在EA后显著下降,在整个观察期内仍然低于基线 (P < .05).
- 胎儿心率 (FHR) 在EA后没有显著变化.
- 虽然和子宫动脉多普勒指数保持稳定,中脑动脉 (MCA) 脉动性和阻力指数下降,缩速度 (PSV) 在EA后显著增加,所有都处于正常范围内.
结论:
- 外周止痛会导致显著的,暂时的母体血液动力学变化,包括减少MAP,HR和SPO2.
- 胎儿血液动力学,通过FHR和和子宫动脉的多普勒流来评估,在很大程度上不受EA的影响.
- 观察到的胎儿MCA多普勒参数的变化表明,对母亲的血液循环转移有潜在的生理反应,保持在正常生理界限内.
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