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Comparison of norepinephrine and phenylephrine infusions for the prevention of post-spinal hypotension in patients with preeclampsia undergoing cesarean section: a randomized sequential allocation study

Comparison of norepinephrine and phenylephrine infusions for the prevention of post-spinal hypotension in patients with preeclampsia undergoing cesarean section: a randomized sequential allocation study

Status
Recruiting
Phases
Early Phase 1
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2300072579
Enrollment
Unknown
Registered
2023-06-18
Start date
2023-06-15
Completion date
Unknown
Last updated
2023-06-18

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

Conditions

None listed

Interventions

Norepinephrine group:The initial prophylactic infusion of norepinephrine was administered to the first patient at a rate of 0.05 µg/kg/min, with incremental adjustments (0.01 µg/kg/min) made for subse
Phenylephrine group:The initial prophylactic infusion of phenylephrine was administered to the first patient at a rate of 0.5 µg/kg/min, with incremental adjustments (0.1 µg/kg/min) made for subsequen

Sponsors

The Fifth People's Hospital of Huaian
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to 40 Years

Inclusion criteria

Inclusion criteria: ASA grade II-III singleton patients with preeclampsia undergoing cesarean section under spinal anesthesia

Exclusion criteria

Exclusion criteria: Spinal anesthesia is contraindicated; chronic hypertension, other cardiovascular and cerebrovascular diseases, eclampsia, and severe fetal distress are also contraindications.

Design outcomes

Primary

MeasureTime frame
The effective dose (ED) 90 and relative potency ratio of norepinephrine and phenylephrine for preventing post-spinal hypotension;

Secondary

MeasureTime frame
Adverse events;Apgar scores;Blood gas analysis of umbilical artery;

Countries

China

Contacts

Public ContactXiangsheng Xiong

The Fifth People's Hospital of Huaian

158193942@qq.com+86 136 1514 6471

Outcome results

None listed

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