- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04223128
Comparing Intravenous Magnesium Sulfate With Dexamethasone as Adjuvants to Ultrasound Guided TAPblock (TAPblock)
Comparing Intravenous Single Low Doses of Magnesium Sulphate Versus Dexamethasone as Adjuvants to Ultrasound Guided Transversus Abdominis Plane (TAP) Block for Prolongation of Postcesaren Analgesia
TAP block provided increased postoperative analgesia and reduced analgesic requirements as part of a multimodal analgesic regimen.
The aim of the study is to compare the efficacy of single low dose of intravenous MgSO4 versus intravenous dexamethasone as adjuvants to ultrasound guided TAP block for prolongation of postcesaren analgesia
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Setting: Ain shams University maternity Hospitals, Cairo, Egypt. Study Period: 4 months from 1st December 2019 to 1st April 2020. Sampling Method: Random sample Sample Size: 60 patients Study Design A total of (60) full term pregnant women (completed 37 weeks) will be recruited for the study will undergo elective cesarean section. Written informed consent will be obtained from all patients before randomization. Randomization will be done with the help of a computer generated list of numbers. Patients will be divided randomly and equally into three groups (20) Patients each. The first group patients will be assigned to magnesium sulphate group (M), the second group of patients will be assigned to dexamethasone group (D) and the third group will be assigned to placebo group (C). Group assignment, preparation and administration of drugs will be performed by a junior anesthetist who is neither involved nor interested by any means in the study. Blind grouping will be kept to all including the patients themselves, until the completion of study.
Preoperative Anesthetic Assessment All patients will be subjected to a thorough medical history, physical examination with thorough airway assessment, laboratory investigations (fasting blood sugar, kidney, liver function tests, serum electrolytes, coagulation profile, and electrocardiogram) preoperatively. They will be also counseled about the anesthetic management and potential complications of both surgery and anesthesia, and the explanations of numerical pain analogue scale (NAS) from 0-10. All these data will be documented.
Anesthetic Protocol All participants will be admitted to operating theatre (OR) induction area where patient identification is confirmed and an 18-gauge intravenous cannula will be inserted to all Participants. Participants in group (M) will receive 50 mg/kg MgSO4 in 100 ml isotonic saline intravenous (I.V) over 20 minutes prior to induction of general anesthesia by 30 minutes, participants in group (D) will receive 2 mg Dexamethasone in 100 ml isotonic saline IV while participants in group (C) will receive 100 ml isotonic saline IV (placebo) by the same route and over the same duration as control.
General anesthesia will be induced with intravenous propofol 2.0 mg/kg, succinyl choline 1.0 mg/Kg then they will be intubated orally which is fixed after confirmation of its place by capnography and auscultation. Anesthesia will be maintained by 2% sevoflurane in 100% oxygen then atracurium 0.1 mg/kg will be given for maintenance of muscle relaxation. After delivery of the fetus and placenta, 2 mg midazolam, 1 µg/kg fentanyl and 10 IU oxytocin (in 500 ml ringer solution) will be administrated. Immediately after completion of surgery, each patient will receive ultrasound guided bilateral ultrasound guided TAP blocks. After that muscle relaxant will be antagonized by 40 µg/kg neostigmine and 20 µg/kg atropine, then awake extubation will be done and the patients will be transferred to the recovery unit. All patients will be monitored all through the surgery by standard monitors including, electrocardiogram, the pulse oximeter, non-invasive blood pressure, and capnography.
TAP Block Technique Using an 18 G Tuohy needle (80 mm Smiths medical Portex®) and the layers of the abdominal wall will be identified guided by superficial high-frequency 45 mm linear array ultrasound probe (13 MHz) as described by McDonnell and colleagues.(1) Twenty millilitre of 0.25% bupivacaine will be injected slowly after careful aspiration to ensure no vascular injury has occurred. Successful injection will produce an echo-lucent space between the muscle layers (internal oblique and transversus abdominis). All TAP blocks will be performed by the same anesthetist.
Postoperative Analgesic Regimen It will start immediately on arrival to the recovery unit where all patients will receive 1 gm of Acetaminophen IV. After that all patients will continue on acetaminophen 1 gm/6 h IV and 5 mg Nalbuphine IV will be given if breakthrough pain develops during the first day postoperative.
Patients Assessment Patients will be transferred to Post-anesthesia care unit PACU and upon arrival to PACU, a pulse oximeter and Non-invasive blood pressure (NIBP) monitors will be attached to the patients. Discharge criteria from PACU will be stable vital signs, pain score less than or equal to 2, no nausea or vomiting, calm and alert patient.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
-
Cairo, Egypt
- AinShams University, Faculty of medicine
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- singleton full term pregnancy ( completed 37 weeks)
- undergoing elective cesarean section
- ASA I, II
Exclusion Criteria:
- patients with ASA physical status class III-IV,
- morbid obesity with BMI > 35 kg.m-2 at initial hospital visit
- neuro-axial anaesthesia
- severe pre-eclampsia,
- diabetes mellitus,
- cardiovascular disease,
- renal disease,
- hypermagnesemia,
- history of analgesic administration or intake during past 24 hours,
- chronic use of steroids therapy,
- urgent cesarean sections,
- multiple gestations,
- history of relevant drug allergy,
- any possibility of anticipated difficult intubation.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: PREVENTION
- Allocation: RANDOMIZED
- Interventional Model: FACTORIAL
- Masking: DOUBLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
ACTIVE_COMPARATOR: Magnesium sulfate group(M)
Participants in group (M) will receive 50 mg/kg MgSO4 in 100 ml isotonic saline intravenous (I.V) over 20 minutes prior to induction of general anesthesia by 30 minutes then ultrasound guided TAPblock after closure of the abdomen
|
Using an 18 G Tuohy needle (80 mm Smiths medical Portex®) and the layers of the abdominal wall will be identified guided by superficial high-frequency 45 mm linear array ultrasound probe (13 MHz) as described by McDonnell and colleagues.(1)
Twenty millilitre of 0.25% bupivacaine will be injected slowly after careful aspiration to ensure no vascular injury has occurred.
Successful injection will produce an echo-lucent space between the muscle layers (internal oblique and transversus abdominis).
All TAP blocks will be performed by the same anesthetist.
|
ACTIVE_COMPARATOR: Dexamethasone group(D)
participants in group (D) will receive 2 mg Dexamethasone in 100 ml isotonic saline IV then ultrasound guided TAPblock after closure of the abdomen
|
Using an 18 G Tuohy needle (80 mm Smiths medical Portex®) and the layers of the abdominal wall will be identified guided by superficial high-frequency 45 mm linear array ultrasound probe (13 MHz) as described by McDonnell and colleagues.(1)
Twenty millilitre of 0.25% bupivacaine will be injected slowly after careful aspiration to ensure no vascular injury has occurred.
Successful injection will produce an echo-lucent space between the muscle layers (internal oblique and transversus abdominis).
All TAP blocks will be performed by the same anesthetist.
|
PLACEBO_COMPARATOR: Placebo group(C)
participants in group (C) will receive 100 ml isotonic saline IV (placebo) by the same route and over the same duration as control then ultrasound guided TAPblock after closure of the abdomen
|
Using an 18 G Tuohy needle (80 mm Smiths medical Portex®) and the layers of the abdominal wall will be identified guided by superficial high-frequency 45 mm linear array ultrasound probe (13 MHz) as described by McDonnell and colleagues.(1)
Twenty millilitre of 0.25% bupivacaine will be injected slowly after careful aspiration to ensure no vascular injury has occurred.
Successful injection will produce an echo-lucent space between the muscle layers (internal oblique and transversus abdominis).
All TAP blocks will be performed by the same anesthetist.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Efficacy of postoperative analgesia
Time Frame: the first 24 hours postoperative
|
pain assessed by visual analogue scale from 0- 10 as 0 means no pain and 10 worst pain and 0-3 mild pain , 4-7 moderate pain and 7-10 severe pain
|
the first 24 hours postoperative
|
The duration of analgesia before needing rescue analgesia
Time Frame: First 24 hours postoperative
|
Time in minutes
|
First 24 hours postoperative
|
Frequency of rescue analgesia needed
Time Frame: First 24 hours postoperative
|
First 24 hours postoperative
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
fetal safety
Time Frame: first minute and at 5 minutes postdelivery
|
assessed by APGAR score from 1- 10 the higher the score the better the baby health a score of 7 to 9 means normal newborn and is a sign of good health after birth
|
first minute and at 5 minutes postdelivery
|
time needed to ambulate unaided
Time Frame: the first 24 hours postoperatively
|
Measured in hours
|
the first 24 hours postoperatively
|
patient hemodynamics
Time Frame: Immediatelypre-anesthesia, immediately postintubation, immediately postextubation and 3o minutes postrecovery
|
heart rate (BPM)
|
Immediatelypre-anesthesia, immediately postintubation, immediately postextubation and 3o minutes postrecovery
|
Patient hemodynamics
Time Frame: Immediatelypre-anesthesia, immediately postintubation, immediately postextubation and 3o minutes postrecovery
|
Mean arterial blood pressure(mmHg)
|
Immediatelypre-anesthesia, immediately postintubation, immediately postextubation and 3o minutes postrecovery
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- FAMSU R 59/2019
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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