A Multi-site Randomized Controlled Trial Comparing Regional and General Anesthesia for Effects on Neurodevelopmental Outcome and Apnea in Infants (GAS)
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Purpose
The primary purpose of the GAS study is to determine whether different types of anesthesia (Regional versus General) given to 660 infants undergoing inguinal hernia repair results in equivalent neurodevelopmental outcomes. The study also aims to describe the incidence of apnea in the post-operative period after both regional and general anesthesia for inguinal hernia repair in infants. This study is important as it will provide the greatest evidence for safety or toxicity of general anesthesia for human infants.
| Condition | Intervention | Phase |
|---|---|---|
|
Inguinal Hernia |
Drug: Regional Anesthesia Drug: General Anesthesia |
Phase 4 |
| Study Type: | Interventional |
| Study Design: | Allocation: Randomized Endpoint Classification: Bio-equivalence Study Intervention Model: Parallel Assignment Masking: Single Blind (Outcomes Assessor) Primary Purpose: Treatment |
| Official Title: | A Multi-site Randomised Controlled Trial Comparing Regional and General Anaesthesia for Effects on Neurodevelopmental Outcome and Apnoea in Infants |
- The primary outcome will be the Wechsler Preschool and Primary Scale of Intelligence-Third Edition (WPPSI-III)full scale IQ score. [ Time Frame: At 5 years corrected age ] [ Designated as safety issue: No ]
- Bayley neurodevelopmental scale. Also, frequency and characteristics of apnea in the post-operative period. [ Time Frame: At 2 years corrected age. ] [ Designated as safety issue: No ]
| Estimated Enrollment: | 720 |
| Study Start Date: | October 2006 |
| Estimated Study Completion Date: | December 2016 |
| Estimated Primary Completion Date: | December 2016 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Active Comparator: 1
Regional Anesthesia
|
Drug: Regional Anesthesia
Up to 2.5 mg/kg bupivacaine administered by caudal or subarachnoid routes or both caudal and subarachnoid or subarachnoid and ilioinguinal nerve blockade. Single shot.
Other Name: Spinal Anesthesia.
|
|
Active Comparator: 2
General Anesthesia
|
Drug: General Anesthesia
Sevoflurane for induction and maintenance of general anesthesia, dose up to 8% inspired for duration of procedure plus bupivacaine local anesthetic blockade (up to 2.5 mg/kg) administered via caudal or ilioinguinal nerve block.
Other Name: General Anesthesia.
|
Detailed Description:
This is a prospective, observer blind, multi-site, randomized, controlled, equivalence trial. The general anesthesia group will receive sevoflurane (intervention drug) for induction and maintenance of general anesthesia, dose up to 8% inspired for duration of procedure plus bupivacaine local anesthetic blockade (up to 2.5 mg per kg) administered via caudal or ilioinguinal nerve block. The airway can be maintained with a face mask, laryngeal mask or endotracheal tube, with or without neuromuscular blocking agents.
The regional group will have no sedative agent. The regional blockade may be with spinal alone, spinal block with caudal block, spinal with ilioinguinal block or caudal alone. The maximum dose of 2.5 mg per kg of bupivacaine can be used.
Eligibility| Ages Eligible for Study: | up to 60 Weeks |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Any infant scheduled for unilateral or bilateral inguinal hernia repair (with or without circumcision)
- Any infant whose gestational age is 26 weeks or more (GA = 182 days)
- Any infant whose post-menstrual age is up to 60 weeks (PMA = 426 days)
Exclusion Criteria:
- Any child older than 60 weeks post-menstrual age
- Any child born less than 26 weeks gestation
- Any contraindication to general or spinal/caudal anesthesia (for example: neuromuscular disorder or coagulopathy)
- Pre-operative ventilation immediately prior to surgery
- Congenital heart disease that has required ongoing pharmacotherapy
- Known chromosomal abnormality or any other known acquired or congenital abnormalities (apart from prematurity) which are likely to affect development
- Children where follow-up would be difficult for geographic or social reasons
- Families where English is not the primary language spoken at home
- Known neurological injury such as cystic periventricular leukomalacia (PVL), or grade 3 or 4 intra ventricular hemorrhage (ICH) (+/- post hemorrhage ventricular dilation)
- Previous exposure to volatile anesthesia or benzodiazepines as a neonate or in the third trimester in utero.
Contacts and Locations| Contact: Andrew Davidson, MD | + 61 3 93455233 | andrew.davidson@rch.org.au |
| Contact: Suzette Sheppard | + 61 3 93455233 | suzette.sheppard@mcri.edu.au |
Show 29 Study Locations| Principal Investigator: | Andrew Davidson, MD | Royal Children's Hospital, Victoria, Australia |
| Principal Investigator: | Mary Ellen McCann, MD | Children's Hospital Boston, United States of America |
| Principal Investigator: | Neil Morton, MD | Royal Hospital for Sick Children, Glasgow, United Kingdom |
More Information
Publications:
| Responsible Party: | Children's Hospital Boston |
| ClinicalTrials.gov Identifier: | NCT00756600 History of Changes |
| Other Study ID Numbers: | 06-07-0320 |
| Study First Received: | September 18, 2008 |
| Last Updated: | July 20, 2012 |
| Health Authority: | United States: Institutional Review Board Australia: Human Research Ethics Committee United Kingdom: Research Ethics Committee Italy: Ethics Committee Canada: Ethics Review Committee |
Keywords provided by Children's Hospital Boston:
|
Infants scheduled unilateral bilateral repair |
Additional relevant MeSH terms:
|
Hernia Hernia, Inguinal Pathological Conditions, Anatomical Hernia, Abdominal Anesthetics |
Central Nervous System Depressants Physiological Effects of Drugs Pharmacologic Actions Central Nervous System Agents Therapeutic Uses |
ClinicalTrials.gov processed this record on May 23, 2013