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Impact of CO2 on Cerebral Blood Flow in Infants Less Than 6 Months During General Anaesthesia

Not Applicable
Completed
Conditions
Anesthesia, General
Infant
Interventions
Procedure: EtCO2 modification
Registration Number
NCT03567031
Lead Sponsor
St. Justine's Hospital
Brief Summary

The study aims at assessing cerebral blood flow variations following expired CO2 variations in anaesthetized infants less than 6 months, during a routine general anesthesia.

Detailed Description

The study aims at assessing cerebral blood flow (measured with Near-Infrared Reflectance Spectroscopy - NIRS - and transcranial Doppler - DTC) variations following end-tidal expired CO2 variations in anaesthetized infants less than 6 months, during a routine general anesthesia performed according to standards of care.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
60
Inclusion Criteria
  • Age < or = 6 months
  • ASA class < or = 3
  • General anesthesia required for surgery
Exclusion Criteria
  • No parental consent
  • Emergency surgery
  • Preexisting neurological condition
  • Hemodynamic instability
  • Preexisting hypoxemia and/or hypercapnia
  • Laparoscopy or thoracoscopy, if expected EtCO2 level achieving would require unsafe ventilation parameters

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Main ArmEtCO2 modificationIn each patient, under ongoing standard general anesthesia in a stable state, EtCO2 is manually modified to reach predefined values, and after waiting until cerebral blood flow has reached steady state, NIRS and DTC values are noted.
Primary Outcome Measures
NameTimeMethod
NIRS variation5 to 10 minutes

Near-Infrared Spectroscopy value variation after EtCO2 modification

Secondary Outcome Measures
NameTimeMethod
DTC variation5 to 10 minutes

Transcranial Doppler values variation after EtCO2 modification

Trial Locations

Locations (1)

Sainte Justine's Hospital

🇨🇦

Montréal, Quebec, Canada

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