Ephedrine Doses to Prevent Maternal Hypotension After Spinal Anesthesia in Cesarean Section

NCT ID: NCT06668337

Last Updated: 2024-10-31

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-08-01

Study Completion Date

2022-02-15

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This randomized controlled trial aims to compare the effectiveness of different doses of ephedrine infusion in preventing maternal hypotension following spinal anesthesia in parturients undergoing cesarean sections. The study includes 120 participants, aged 18-40 years, with American Society of Anesthesiologists (ASA) physical status II, who are scheduled for elective cesarean delivery. The primary objective is to determine whether low-dose ephedrine infusions at 1.25 mg/min or 1.5 mg/min effectively reduce the incidence of maternal hypotension, with secondary outcomes assessing the need for rescue ephedrine, incidence of side effects (nausea, vomiting, tachycardia), and neonatal Apgar scores. Researchers will compare three groups-saline, 1.25 mg/min ephedrine, and 1.5 mg/min ephedrine-to evaluate their impact on maternal hemodynamic stability.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Hypotension After Spinal Anesthesia Hypotension During Cesarean Delivery

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Group A who received normal saline immediately after the administration of the

Participants in this group received normal saline immediately after the administration of the subarachnoid block (spinal anesthesia). This group serves as the control group to compare the effectiveness of ephedrine against no pharmacologic intervention

Group Type PLACEBO_COMPARATOR

Normal Saline (Placebo)

Intervention Type DRUG

Participants in the control group receive a continuous intravenous infusion of normal saline, which serves as an inert placebo with no pharmacological effect. This intervention mimics the administration of the active treatments, allowing for direct comparison with the ephedrine groups to assess the effectiveness of the drug in preventing maternal hypotension during spinal anesthesia.

Group B who received ephedrine at a dosage of 1.25 mg/min immediately after the subarachnoid block

Participants in this group received ephedrine at a dosage of 1.25 mg/min immediately after the subarachnoid block. This dose is intended to prevent maternal hypotension by maintaining blood pressure during spinal anesthesia.

Group Type EXPERIMENTAL

Ephedrine

Intervention Type DRUG

The interventions in this study include a control group receiving normal saline, which serves as an inert placebo to assess the effectiveness of the active treatments. Participants in Group B receive an ephedrine infusion at 1.25 mg/min, while those in Group C receive a higher dosage of 1.5 mg/min. This design allows for direct comparison of the two dosages of ephedrine against the control, enabling evaluation of their effectiveness in preventing maternal hypotension following spinal anesthesia during cesarean sections.

Group C who received ephedrine at a dosage of 1.5 mg/min immediately after the subarachnoid block

Participants in this group received ephedrine at a higher dosage of 1.5 mg/min immediately following the subarachnoid block. This intervention tests whether a slightly higher dose of ephedrine provides better prevention of maternal hypotension without increasing side effects.

Group Type EXPERIMENTAL

Ephedrine

Intervention Type DRUG

The interventions in this study include a control group receiving normal saline, which serves as an inert placebo to assess the effectiveness of the active treatments. Participants in Group B receive an ephedrine infusion at 1.25 mg/min, while those in Group C receive a higher dosage of 1.5 mg/min. This design allows for direct comparison of the two dosages of ephedrine against the control, enabling evaluation of their effectiveness in preventing maternal hypotension following spinal anesthesia during cesarean sections.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Normal Saline (Placebo)

Participants in the control group receive a continuous intravenous infusion of normal saline, which serves as an inert placebo with no pharmacological effect. This intervention mimics the administration of the active treatments, allowing for direct comparison with the ephedrine groups to assess the effectiveness of the drug in preventing maternal hypotension during spinal anesthesia.

Intervention Type DRUG

Ephedrine

The interventions in this study include a control group receiving normal saline, which serves as an inert placebo to assess the effectiveness of the active treatments. Participants in Group B receive an ephedrine infusion at 1.25 mg/min, while those in Group C receive a higher dosage of 1.5 mg/min. This design allows for direct comparison of the two dosages of ephedrine against the control, enabling evaluation of their effectiveness in preventing maternal hypotension following spinal anesthesia during cesarean sections.

Intervention Type DRUG

Ephedrine

The interventions in this study include a control group receiving normal saline, which serves as an inert placebo to assess the effectiveness of the active treatments. Participants in Group B receive an ephedrine infusion at 1.25 mg/min, while those in Group C receive a higher dosage of 1.5 mg/min. This design allows for direct comparison of the two dosages of ephedrine against the control, enabling evaluation of their effectiveness in preventing maternal hypotension following spinal anesthesia during cesarean sections.

Intervention Type DRUG

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Patients undergoing cesarean section
* Self-identified as female
* American Society of Anesthesiologists (ASA) physical status II
* Aged between 18 to 40 years
* Full-term singleton pregnancies planned for cesarean delivery under spinal anesthesia

Exclusion Criteria

* Body mass index (BMI) ≥ 40 kg/m²
* Height less than 145 cm
* Presence of severe neurological or psychiatric conditions
* History of pre-eclampsia
* Severe renal or metabolic disorders
* Contraindications to spinal anesthesia
* Antenatal evidence of fetal anomalies
* Cases with severely compromised fetuses requiring immediate general anesthesia
* Baseline systolic blood pressure (SBP) less than 90 mm Hg
* Pregnancy-induced hypertension
* Refusal to provide written consent
Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

B.P. Koirala Institute of Health Sciences

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Narottam Jha

Clinical Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

B.P. koirala Institute of Health Sciences

Dharān, , Nepal

Site Status

Countries

Review the countries where the study has at least one active or historical site.

Nepal

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

IRC/1598/019

Identifier Type: -

Identifier Source: org_study_id