Colloid Preload Versus Crystalloid Co-load in Cesarean Section Under Spinal Anesthesia (CPvsCC)

April 4, 2017 updated by: Majdoub Ali MD, University Hospital, Mahdia

Colloid Preload Versus Crystalloid Co-load in Cesarean Section Under Spinal Anesthesia Randomized Controlled Trial

Comparison between colloid preload and crystalloid co-load in cesarean section under spinal anesthesia.

  1. The primary outcome was the incidence of hypotension
  2. Secondary outcomes included the incidence of severe hypotension, total ephedrine dose, nausea and vomiting and neonatal outcome assessed by Apgar scores and umbilical artery blood gas analysis

Study Overview

Status

Terminated

Conditions

Intervention / Treatment

Detailed Description

It's a prospective randomized study, during 7 months between march and September 2016, carry on department of anesthesia and intensive care and department of obstetrics and gynecology, at Taher Sfar Mahdia University Hospital. investigators included participants:

  • Aged between 18 and 40 years' old
  • American Society of Anesthesiologists physical status I or II (ASA)
  • Full-term singleton pregnancy
  • scheduled for elective cesarean section under spinal anesthesia

Parturients were excluded if :

  • participants younger than 18 or older than 40 years
  • cardiovascular, cerebrovascular or renal disease
  • multiple gestations
  • polyhydramnios or known fetal abnormalities
  • allergy to local anesthetics or opioids
  • emergency Cesarean section or parturient that have failed vaginal delivery with epidural analgesia
  • contraindications for performing spinal anesthesia in this study no premedication was given. Patients entered the operating room and lay supine with 15° of left lateral tilt on the operating table.

Standard monitors of electrocardiography, pulse oximetry (Spo2), and noninvasive blood pressure were applied on the right arm.

Baseline systolic and diastolic blood pressure (SBP, DPB) and heart rates (HR) were recorded. An 18 or 16-gauge intravenous cannula was inserted in a large forearm vein.Patients were randomly assigned into two groups: colloid preload (CoP), and crystalloid co-load (CrC).Group CoP: group with colloid preload The preload group received rapid infusion of 15ml/kg of 6% hydroxyethyl starch (6% HES, voluven) administered by gravity at a wide-open rate over a period of 15-30min before induction of spinal anesthesia.Group CrC: group with crystalloid coload received a sodium chloride 0.9% perfusion as rapidly as possible starting at the time of intrathecal injection.

Spinal anesthesia was performed in the sitting position with a 27- or 25-gauge spinal needle at the L3-4 or L2-3 interspace using hyperbaric bupivacaine 10 mg (0.5% hyperbaric bupivacaine 2 mL), sufentanyl 2.5 µg (0.5 ml) and 100µg morphine (1ml). All patients received the same dose regardless of height or weight. After completing the anesthetic procedure, patients were immediately repositioned to supine with a 15°-30° left lateral tilt. The highest sensory block was checked and confirmed at the level of T3-T5 determined with loss-to-pinprick method bilaterally at 5 minutes and 10 minutes after spinal drug administration. Motor block was measured with modified Bromage scale (0, no block; 1, inability to raise extended leg;2, inability to flex knee; 3, inability to flex ankle and foot).

Oxygen was routinely given: 5 l/min was administrated via a clear facemask. After umbilical cord clamping, prophylactic antibiotic treatment was administrated intravenously whether 2g of cefazolin or 600mg of clindamycin if the parturient was allergic to penicillin.After delivery of the baby, 10 UI of oxytocin was intravenously given, and 15 UI was titrated following lactate ringer's solution.

Hypotension was defined as a 20% reduction of systolic blood pressure from baseline .Severe hypotension defined as SBP < 80 mmhg.

It was treated with an intravenous ephedrine bolus:

  • 70% ≤ SBP < 80% from baseline value: ephedrine 6mg
  • SBP < 70% from baseline value: ephedrine 9mg
  • SBP < 60% from baseline value: ephedrine 12mg Vasopressor treatment was repeated every 2 minutes if hypotension persisted or recurred.

Study Type

Interventional

Enrollment (Actual)

127

Phase

  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 40 years (ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Aged between 18 and 40 years' old
  • American Society of Anesthesiologists physical status I or II (ASA)
  • Full-term singleton pregnancy
  • scheduled for elective cesarean section under spinal anesthesia

Exclusion Criteria:

  • cardiovascular, cerebrovascular or renal disease
  • multiple gestations
  • polyhydramnios or known fetal abnormalities
  • allergy to local anesthetics or opioids
  • emergency Cesarean section or parturient that have failed vaginal delivery with epidural analgesia
  • contraindications for performing spinal anesthesia

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: PREVENTION
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: SINGLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: colloid preload
Group CoP: group with colloid preload The preload group received rapid infusion of 15ml/kg of 6% hydroxyethyl starch (6% HES) administered by gravity at a wide-open rate over a period of 15-30min before induction of spinal anesthesia.
coparaison between colloid and crystalloide loading in spinal anesthesia for cesarean section
Other Names:
  • crystalloid coload
PLACEBO_COMPARATOR: crystalloid coload
Group CrC: group with crystalloid coload The coload group received a sodium chloride 0.9% perfusion as rapidly as possible starting at the time of intrathecal injection for spinal anesthesia.
coparaison between colloid and crystalloide loading in spinal anesthesia for cesarean section
Other Names:
  • crystalloid coload

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The primary outcome was the incidence of hypotension
Time Frame: 2 hours
hypotension defined by decreasing of arterial blood pressure under 20% of base line
2 hours

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
incidence of severe hypotension
Time Frame: 2 hours
severe hypotension is defined by decreasing of systolic arterial blood pressure below 80 mmHg
2 hours
total ephedrine dose
Time Frame: 2 hours
2 hours
nausea and vomiting
Time Frame: 2 hours
number of nausea and vomiting episode
2 hours
neonatal outcome
Time Frame: 2 hours
umbilical arterial blood gas and APGAR scors at 1 and 5 minutes
2 hours

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2016

Primary Completion (ACTUAL)

September 1, 2016

Study Completion (ACTUAL)

September 1, 2016

Study Registration Dates

First Submitted

December 30, 2016

First Submitted That Met QC Criteria

April 4, 2017

First Posted (ACTUAL)

April 11, 2017

Study Record Updates

Last Update Posted (ACTUAL)

April 11, 2017

Last Update Submitted That Met QC Criteria

April 4, 2017

Last Verified

April 1, 2017

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • LCS

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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