妊娠期胎儿心率监测Ⅱ类孕妇静脉输液推注与持续输注疗效比较:一项随机对照试验 (IUR-RCT)
妊娠期胎儿心率追踪类别II孕妇静脉输液推注与持续输注疗效比较:一项随机对照试验
本临床试验的目的是比较两种静脉输液方法——推注输液与持续输液——在产程中出现II类胎心率(FHR)图谱的孕妇中进行宫内复苏的疗效。 主要研究问题是:
与使用1000 mL生理盐水以150 mL/小时速率持续输液调整的静脉补液相比,使用调整的生理盐水静脉补液推注进行宫内复苏是否能在30分钟内更有效地将FHR图谱从II类转为I类? 目标
主要目标:
- 比较两种补液方法在30分钟内电子胎心监护(EFM)类别从II类改善至I类的比率:生理盐水推注负荷(调整剂量)与生理盐水持续输液(1000 mL以150 mL/小时速率)
次要目标:
- 识别宫内复苏期间使用的静脉输液给药特征。
- 确定补液推注是否比持续输液更快速或更有效地改善胎心率模式。
方法
研究设计:采用区组随机化(四例一组)的随机对照试验。
参与者:入院时呈现II类FHR图谱的产程中孕妇。
干预:
A组:使用生理盐水推注负荷调整静脉补液。 B组:使用生理盐水持续输液调整静脉补液(1000 mL以150 mL/小时速率)。
监测:将持续观察电子胎心监护(EFM)以检测干预后FHR类别的任何变化。
主要结局:30分钟内FHR从II类转为I类。
研究概览
地位
详细说明
这是一项随机对照试验研究,旨在比较两种静脉输液方法(快速输注与持续输注)对于产程中出现II类胎心率(FHR)图谱孕妇进行宫内复苏的疗效。
共有2种干预措施:
干预1(快速输注组):
参与者接受500毫升生理盐水(NSS)在20分钟内快速静脉输注,随后以150毫升/小时的速度持续输注1,000毫升NSS。
干预2(持续输注组):
参与者接受1,000毫升生理盐水以150毫升/小时的速度持续输注,无需预先快速输注。
短期结局收集
主要短期结局:
开始指定静脉水化方案后30分钟内,通过持续电子胎心监护(EFM)评估FHR从II类转为I类的情况。
次要短期结局:
在基线、干预后10分钟和30分钟测量:
母体血流动力学参数:血压、心率、呼吸频率、血氧饱和度(SpO₂) 下腔静脉塌陷指数(IVC-CI),通过超声(M模式)评估 脐动脉多普勒指数:阻力指数(RI)、搏动指数(PI)、S/D比值 FHR变异性和减速模式 所有结局均由盲法评估者记录在病例报告表(CRF)中。所有参与者均为产程中出现II类胎心率(FHR)图谱的孕妇,采用区组随机化(区组大小=4)进行随机分组。
干预期间,标准宫内复苏措施(母体左侧卧位、停用催产素、必要时通过面罩给予15升/分钟氧气)保持一致。
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
-
-
Changwat Chon Buri
-
Si Racha、Changwat Chon Buri、泰国、20110
- Queen Savang Vadhana Memorial Hospital
-
-
参与标准
资格标准
适合学习的年龄
- 成人
接受健康志愿者
描述
纳入标准:
- 单胎妊娠
- 泰国国籍
- 孕周大于等于37周
- 产妇年龄20-35岁
- 头位分娩
- 电子胎儿监护(EFM)II类
排除标准:
- 产妇基础疾病:心脏病、肺部疾病、显性糖尿病、甲状腺疾病等
- 高危妊娠:先兆子痫/子痫、妊娠期糖尿病
- 胎儿异常
- 产妇接受药物治疗,例如:硫酸镁、哌替啶、阿片类药物
- 羊水过少
学习计划
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:双倍的
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的:Group A: Bolus group
Participants were prescribed 1,000 mL of normal saline through a 21-gauge cannula and the same volumetric infusion pump.
The first 500 mL was administered at 1,000 mL/h during the first 30 minutes.
The remaining 500 mL was then administered at 150 mL/h.
Resuscitation continued until the attending declared Category I recovery or until 120 minutes.
|
Participants were prescribed 1,000 mL of normal saline through a 21-gauge cannula and the same volumetric infusion pump.
The first 500 mL was administered at 1,000 mL/h during the first 30 minutes.
The remaining 500 mL was then administered at 150 mL/h.
The intervention continued until the attending declared Category I recovery or until 120 minutes.
|
|
实验性的:Group B: Continuous group
Participants were prescribed 1,000 mL of normal saline through a 21-gauge cannula and the same volumetric infusion pump.
Normal saline was administered at 150 mL/h throughout.
Resuscitation continued until the attending declared Category I recovery or until 120 minutes.
|
Participants were prescribed 1,000 mL of normal saline through a 21-gauge cannula and the same volumetric infusion pump.
Normal saline was administered continuously at 150 mL/h throughout.
The intervention continued until the attending declared Category I recovery or until 120 minutes.
|
研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
First recovery from Category II to Category I EFM tracing within 30 minutes
大体时间:30 minutes
|
Proportion of participants with first recovery from Category II to Category I electronic fetal monitoring tracing within 30 minutes of intervention initiation, classified using the NICHD three-tier system.
First Category I recovery was an absorbing endpoint.
A later observed Category II classification did not reverse recovered endpoint status.
Non-recovery was persistent Category II or progression to Category III.
Classification was performed in real time by the masked attending outcome assessor.
|
30 minutes
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Mode of delivery
大体时间:At delivery
|
Route of delivery classified as vaginal delivery or caesarean section.
|
At delivery
|
|
Neonatal Intensive Care Unit (NICU) admission
大体时间:Within 24 hours of delivery
|
Proportion of neonates admitted to the neonatal intensive care unit following delivery.
|
Within 24 hours of delivery
|
|
Apgar score at 1 minute
大体时间:1 minute after delivery
|
Proportion of neonates with 1-minute Apgar score below 7
|
1 minute after delivery
|
|
Apgar score at 5 minutes
大体时间:5 minutes after delivery
|
Proportion of neonates with 5-minute Apgar score below 7
|
5 minutes after delivery
|
|
First recovery from Category II to Category I EFM tracing within 60 minutes
大体时间:60 minutes
|
Cumulative proportion of participants with first recovery from Category II to Category I electronic fetal monitoring tracing within 60 minutes of intervention initiation, classified using the NICHD three-tier system.
First Category I recovery was an absorbing endpoint.
A later observed Category II classification did not reverse recovered endpoint status.
Non-recovery by 60 minutes was persistent Category II or progression to Category III.
|
60 minutes
|
|
First recovery from Category II to Category I EFM tracing within 120 minutes
大体时间:120 minutes
|
Cumulative proportion of participants with first recovery from Category II to Category I electronic fetal monitoring tracing within 120 minutes of intervention initiation, classified using the NICHD three-tier system.
First Category I recovery was an absorbing endpoint.
A later observed Category II classification did not reverse recovered endpoint status.
Non-recovery by 120 minutes was persistent Category II or progression to Category III.
|
120 minutes
|
合作者和调查者
出版物和有用的链接
一般刊物
- 1. World Health Organization. WHO statement on caesarean section rates. WHO/RHR/15.02. Geneva: World Health Organization; 2015. 2. Royal Thai College of Obstetricians Gynaecologists. Position Statement on Caesarean Section (Revised Edition 2023). Bangkok: RTCOG; 2023. 3. Freeman RK, Garite TJ, Nageotte MP, Miller LA. Fetal Heart Rate Monitoring. 4th ed. Philadelphia: Lippincott Williams & Wilkins; 2012. 4. Abati I, Micaglio M, Giugni D, Seravalli V, Vannucci G, Di Tommaso M. Maternal oxygen administration during labor: a controversial practice. Children. 2023;10(8):1420. 5. Kearney L, Craswell A, Dick N, Massey D, Nugent R. Evidence-based guidelines for intrapartum maternal hydration assessment and management: a scoping review. Birth. 2024;51(2):253-63. 6. Simpson KR, James DC. Efficacy of intrauterine resuscitation techniques in improving fetal oxygen status during labor. Obstetrics & Gynecology. 2005;105(6):1362-8. 7. Reddy UM, Weiner SJ, Saade GR, Varner MW, Blackwell SC, Thorp JM, Jr. Intrapartum resuscitation interventions for category II fetal heart rate tracings and improvement to category I. Obstetrics & Gynecology. 2021;138(3):409-16. 8. American College of Obstetrician Gynecologists. Practice Bulletin No. 116: Management of intrapartum fetal heart rate tracings. Obstetrics & Gynecology. 2010;116(5):1232-40. 9. Kitsricharoenchai A, Sunsaneevithayakul P, Boriboonhirunsarn D. Success rate of intrauterine fetal resuscitation in NICHD category II abnormal fetal heart rate pattern. Thai Journal of Obstetrics and Gynaecology. 2021;29(3):159-68. 10. Hopewell S, Chan A-W, Collins GS, Hróbjartsson A, Moher D, Schulz KF, et al. CONSORT 2025 statement: updated guideline for reporting randomised trials. BMJ. 2025;389:e081123. 11. Hoffmann TC, Glasziou PP, Boutron I, Milne R, Perera R, Moher D, et al. Better reporting of interventions: template for intervention description and replication (TIDieR) checklist and guide. BMJ. 2014;348:g1687. 12. Manyara AM, Davies P, Stewa
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (实际的)
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首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
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其他研究编号
- 013/2568
计划个人参与者数据 (IPD)
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IPD 计划说明
IPD 共享时间框架
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