Assessment of Cerebral Vasoreactivity Using Near-infrared Spectroscopy (NIRS) in Infants (VARO)
VARO
1 other identifier
interventional
20
1 country
1
Brief Summary
The purpose of this study is to show that a permissive hypercapnia during mechanical ventilation in children under general anaesthesia will improve cerebral perfusion.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Sep 2015
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 11, 2015
CompletedFirst Posted
Study publicly available on registry
April 29, 2015
CompletedStudy Start
First participant enrolled
September 1, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
September 30, 2017
CompletedJanuary 4, 2018
January 1, 2018
2 years
March 11, 2015
January 3, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Assessment of the changes in TOI and THI as measured by NIRS under normocapnia and permissive hypercapnia
At steady state (2-3 minutes) after achieving each level of ETCO2 and every 2 minutes up to 6 minutes for each level
Secondary Outcomes (4)
Blood gas analysis
5 or 20 minutes after reaching the steady state with ETCO2
Blood Pressure
At steady state (2-3 minutes) after achieving each level of ETCO2 and every 2 minutes up to 6 minutes for each level
Heart rate
At steady state (2-3 minutes) after achieving each level of ETCO2 and every 2 minutes up to 6 minutes for each level
Body temperature
At steady state (2-3 minutes) after achieving each level of ETCO2 and every 2 minutes up to 6 minutes for each level
Study Arms (2)
Normocapnia
ACTIVE COMPARATORThe Child will be ventilated in order to achieve an end-tidal carbon dioxide (ETCO2) of 5.5 kiloPascal (kPa). Measurements will be performed after steady state condition. Then the ventilation will be reduced to allow ETCO2 to reach 6.5 kPa before repeating the measurements. Finally, the child will be again ventilated to obtain a normocapnia condition.
Mild Hypercapnia
OTHERThe Child will be ventilated in order to achieve a ETCO2 of 6.5 kPa. Measurements will be performed after steady state condition. Then the ventilation will be increased to allow ETCO2 to reach 5.5 kPa before repeating the measurements. Finally, the child will be again ventilated to obtain a mild hypercapnic condition
Interventions
Normoventilation in order to have an end-tidal carbon dioxide (ETCO2) of 5.5 kiloPascal (kPa)
Decrease in minute ventilation in order to increase ETCO2 to 6.5 kPa
Eligibility Criteria
You may qualify if:
- term neonates during their infancy
- for elective surgery requiring general anesthesia and endotracheal intubation
You may not qualify if:
- all infants with cardiac anomalies, chronic pulmonary disease (bronchopulmonary dysplasia, cystic fibrosis, asthma), pulmonary hypertension or cranial hypertension will be excluded
- all infants where no access to the forehead is possible as a consequence of the operating field
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Walid HABRElead
Study Sites (1)
Geneva Children's Hospital
Geneva, 1206, Switzerland
Related Publications (1)
Schopfer L, Habre W, Pichon I, Fodor GH. Effect of Permissive Mild Hypercapnia on Cerebral Vasoreactivity in Infants: A Randomized Controlled Crossover Trial. Anesth Analg. 2021 Oct 1;133(4):976-983. doi: 10.1213/ANE.0000000000005325.
PMID: 33410612DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Walid Habre, MD, PhD
University of Geneva
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Associated Professor
Study Record Dates
First Submitted
March 11, 2015
First Posted
April 29, 2015
Study Start
September 1, 2015
Primary Completion
September 1, 2017
Study Completion
September 30, 2017
Last Updated
January 4, 2018
Record last verified: 2018-01