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Effects of vasopressor on placental circulation in hypertensive pregnancy patients with postspinal hypotension

Comparison of phenylephrine and norepinephrine on placental circulation in hypertensive pregnancy patients with postspinal hypotension: a randomized controlled study

Status
Recruiting
Phases
Early Phase 1
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2200056178
Enrollment
Unknown
Registered
2022-02-01
Start date
2022-02-01
Completion date
Unknown
Last updated
2024-08-12

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

Conditions

Hypotension

Interventions

Group P:phenylephrine 50µg
Group N:norepinephrine 4µg

Sponsors

Women's Hospital School of Medicine Zhejiang University
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1. Single fetus PE patients who plan to perform elective cesarean section and choose combined spinal epidural anesthesia; 2. ASA Level 2-3; 3. Aged 18-40 years; 4. Obtain ethical permission and informed consent of patients before the experiment; 5. The diagnostic criteria of preeclampsia are: blood pressure >= 140/90mmhg, measurement interval at least 4 hours, 24-hour proteinuria = 300mg or test paper proteinuria >= 1+.

Exclusion criteria

Exclusion criteria: 1. Patients with chronic hypertension, diabetes and serious cardiovascular and cerebrovascular diseases; 2. Patients with known fetal abnormalities or intrauterine growth restriction; 3. Patients with obstetric complications include premature rupture of membranes, placenta previa and placental abruption; 4. Those who have contraindications to intraspinal anesthesia or research related drugs; 5. The patient's clinical ASA grade is more than 3; 6. The height is too high or too low (>180 cm or<150 cm); 7. Gestational age < 28 weeks.

Design outcomes

Primary

MeasureTime frame
Pulsatility Index;

Countries

China

Contacts

Public ContactFeng Fu

Women's Hospital School of Medicine Zhejiang University

fufeng@zju.edu.cn+86 13588392113

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 7, 2026