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Effect of two medications used to increase blood pressure, phenylephrine and norepinephrine, on contraction of uterus after caesarean delivery

Effect of prophylactic infusions of phenylephrine and norepinephrine on uterine contractility and uterotonic requirements during elective caesarean section under spinal anaesthesia: A randomised double-blind comparison - NIL

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2025/07/091308
Enrollment
130
Registered
2025-07-21
Start date
Unknown
Completion date
Unknown
Last updated
2025-08-18

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

Conditions

Health Condition 1: 1- Obstetrics Health Condition 2: O80- Encounter for full-term uncomplicated delivery

Interventions

Intervention1: Norepinephrine infusion: Norepinephrine infusion will be started immediately after spinal anaesthesia and infusion rates will be titrated based on maternal systolic blood pressure Contr

Sponsors

University College of Medical Sciences and Guru Teg Bahadur Hospital
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Consenting healthy mothers with term, uncomplicated, singleton pregnancy scheduled to undergo elective caesarean section under spinal anaesthesia

Exclusion criteria

Exclusion criteria: History suggestive of maternal complications e.g., pre-eclampsia, cardiovascular disease, cerebrovascular disease Known risk factors for postpartum haemorrhage e.g., multiple gestation, abnormal placentation, uterine fibroid, macrosomia, hydramnios, history of postpartum haemorrhage or uterine atony Patients on monoamine oxidase inhibitors or tricyclic antidepressants History suggestive of presence of mesenteric or peripheral vascular thrombosis Patients with absolute or relative contra-indications for spinal anaesthesia

Design outcomes

Primary

MeasureTime frame
Total oxytocin dose requirementTimepoint: Intraoperative and 24 hours postoperative

Secondary

MeasureTime frame
Adequacy of uterine tone Additional uterotonics used Estimated blood loss Fall in haemoglobin Side effects of vasopressors and oxytocin Incidence of postpartum haemorrhage Timepoint: Intraoperative and 24 hours postoperative

Countries

India

Contacts

Public ContactDr Surbhi

University College of Medical Sciences and Guru Teg Bahadur Hospital

mmohta@ucms.ac.in9868399626

Outcome results

None listed

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