Maternal Haemodynamic Changes After Crystalloid Co-loading and Phenylephrine Versus Phenylephrine Alone During Spinal Anaesthesia for Elective Caesarean Delivery

NCT ID: NCT04026685

Last Updated: 2021-02-17

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

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

66 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-01-09

Study Completion Date

2021-02-05

Brief Summary

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Spinal anaesthesia is the anaesthetic technique of choice for elective caesarean delivery. Hypotension, a result of the decrease in systemic vascular resistance caused by spinal anaesthesia, is a frequent complication occurring in up to 80%. This study is to investigate fluid loading plus vasopressors to vasopressors alone to maintain stable maternal haemodynamics in elective caesarean delivery. The effect of the two methods (continuous prophylactic phenylephrine infusion with and without crystalloid co-loading) on maternal haemodynamics will be compared using the Starling SV Monitor. The Starling SV device is a non invasive cardiac output monitor (NICOM) which is certified and validated for the use in pregnancy.

Detailed Description

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Conditions

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Maternal Haemodynamic Stability

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

double-blind, randomised controlled non-inferiority trial
Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators
Investigator and participant cannot see to which study group the participant belongs. The person performing randomisation and fluid application will not be involved in the data collection and Analysis.

Study Groups

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Phenylephrine infusion only

Phenylephrine infusion only

Group Type ACTIVE_COMPARATOR

Phenylephrine infusion

Intervention Type DRUG

continuous phenylephrine infusion started at a rate of 25mcg/min and titrated according to blood pressure

Phenylephrine infusion and Ringer-Acetate bolus

Phenylephrine infusion and Ringer-Acetate bolus

Group Type ACTIVE_COMPARATOR

Phenylephrine infusion and Ringer-Acetate bolus

Intervention Type DRUG

continuous phenylephrine infusion started at a rate of 25mcg/min and titrated according to blood pressure plus crystalloid Ringer-Acetate co-loading bolus of 1000 mL

Interventions

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Phenylephrine infusion

continuous phenylephrine infusion started at a rate of 25mcg/min and titrated according to blood pressure

Intervention Type DRUG

Phenylephrine infusion and Ringer-Acetate bolus

continuous phenylephrine infusion started at a rate of 25mcg/min and titrated according to blood pressure plus crystalloid Ringer-Acetate co-loading bolus of 1000 mL

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Ability to give informed consent
* Term uncomplicated singleton pregnancy
* Undergoing elective caesarean section under spinal anaesthesia
* Weight: 50-100kg
* Height: 150-180cm
* Healthy term fetus

Exclusion Criteria

* Inability to give informed consent
* Multiple pregnancy
* Clinically significant concomitant disease states (e.g. hypertension, cardiac disease, severe asthma requiring regular medication, comorbidities affecting the autonomous nervous system, renal disease)
* On any cardiovascular medication
* Complications of pregnancy (e.g. preeclampsia, intrauterine growth restriction, fetal malformations)
* Known or suspected non-compliance, drug or alcohol abuse
* Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia of the participant,
* Participation in another study with investigational drug within the 30 days preceding and during the present study,
* Previous enrolment into the current study,
* Enrolment of the investigator, his/her family members, employees and other dependent persons
* Any fetal pathology (e.g. fetal malformations, rupture of membranes before caesarean section, oligohydramnios, polyhydramnios, suspected chorioamnionitis)
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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University Hospital, Basel, Switzerland

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Bigna Buddeberg, Dr. med

Role: PRINCIPAL_INVESTIGATOR

Department of Anaesthesiology, University Hospital of Basel

Locations

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Department of Anaesthesiology, University Hospital of Basel (USB)

Basel, , Switzerland

Site Status

Countries

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Switzerland

Other Identifiers

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2019-00866; qu18Buddeberg

Identifier Type: -

Identifier Source: org_study_id

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