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Effect of intrathecal ropivacaine on blood pressure after combined epidural labor analgesia: a single-center, prospective, randomized controlled clinical study

Effect of intrathecal ropivacaine on blood pressure after combined epidural labor analgesia: a single-center, prospective, randomized controlled clinical study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500111202
Enrollment
Unknown
Registered
2025-10-28
Start date
2025-11-01
Completion date
Unknown
Last updated
2025-11-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

labor pain, labor analgesia

Interventions

CEA group:All parturients undergoing labor analgesia were placed in the left lateral decubitus position. Neuraxial puncture was performed at the L3-L4 interspace: a 17-gauge Tuohy needle was used for
CSEA-1.5 group:For parturients in the combined spinal-epidural labor analgesia group (CSEA-1.5 group), the initial dose was administered intrathecally: 1.5mg ropivacaine
CSEA-3.0 group:For parturients in the combined spinal-epidural labor analgesia group (CSEA-3.0 group), the initial dose was administered intrathecally: 3mg of ropivacaine

Sponsors

The Sixth People's Hospital of Shanghai
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
20 Years to 40 Years

Inclusion criteria

Inclusion criteria: 1.Assessed by an obstetrician as eligible for a trial of vaginal delivery; 2.The parturient voluntarily opts for labor analgesia; 3.Primiparas aged 20-40 years old, with a height of 1.55-1.65 meters; 4.Gestational age of 36-40 weeks, singleton pregnancy with cephalic presentation; 5.At the time of labor analgesia administration, the cervical dilation is 1-3 cm, and the baseline pain score assessed by the Visual Analog Scale (VAS) reaches 10 points.

Exclusion criteria

Exclusion criteria: 1. The parturient refuses to sign the informed consent form; 2. The parturient has pregnancy-related diseases (such as gestational diabetes mellitus, gestational hypertension, preeclampsia, etc.); 3. The parturient has conditions that increase the risk of cesarean section (such as placenta previa, uterine abnormalities or a history of uterine surgery); 4. The parturient has contraindications to neuraxial anesthesia, such as inability to cooperate with neuraxial puncture, morbid obesity, severe spinal deformity, allergy to local anesthetics or opioids, coagulation disorders, infection at the puncture site, uncorrected maternal hypovolemia or hypotension, increased intracranial pressure, severe spinal deformity, etc.; 5. Known fetal developmental abnormalities; 6. Those with incomplete clinical data.

Design outcomes

Primary

MeasureTime frame
Blood pressure;

Secondary

MeasureTime frame
Heart beat;sensory block level;Visual Analog Scale (VAS) score;Bromage Score;time of first defecation after childbirth;time of first urination after childbirth;

Countries

China

Contacts

Public ContactZhai Xiaozhu

The Sixth People's Hospital of Shanghai

xiaozhu1024@163.com+86 135 2476 7436

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026