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Neurodevelopmental outcomes in infants undergoing general anesthesia
Kelsey A Nestor1, Michelle Zeidan1, Erin Boncore1
1University of Florida College of Medicine, Department of Surgery.
Insights
General anesthesia (GA) in infants may have minimal neurodevelopmental effects. Study found no significant link between GA duration and developmental outcomes in children under one year old.
Area of Science:
- Pediatric Anesthesiology
- Neurodevelopmental Pediatrics
- Clinical Outcomes Research
Background:
- Preclinical studies suggest general anesthesia (GA) may harm developing brains.
- Clinical evidence on GA's neurodevelopmental impact in infants remains inconclusive.
- Understanding long-term effects of early-life anesthesia is crucial for pediatric care.
Purpose of the Study:
- To investigate neurodevelopmental outcomes in infants exposed to general anesthesia.
- To assess the relationship between GA and developmental milestones in early childhood.
- To determine if anesthesia duration or specific agents influence pediatric neurodevelopment.
Main Methods:
- Retrospective case-control cohort study including 457 infants (336 GA, 121 controls) from 2010-2011.
- Data collected in 2015, categorizing patients by anesthesia exposure (none, GA without surgery, single GA, multiple GAs).
- Univariate and multivariate analyses performed to evaluate neurodevelopmental outcomes, with significance set at p < 0.05.
Main Results:
- Follow-up at a median of 5.1 years revealed higher rates of developmental delay and speech therapy needs in the GA group.
- However, these outcomes did not correlate with the duration of general anesthesia.
- Infants undergoing GA for MRI showed the poorest neurodevelopmental results; multivariate analysis found no significant differences based on anesthesia duration, age, or agents used.
Conclusions:
- General anesthesia in the first year of life appears to have limited significant neurodevelopmental effects compared to controls.
- The duration of general anesthesia exposure does not correlate with adverse neurodevelopmental outcomes.
- Further research may be warranted to explore specific factors, such as anesthesia for MRI, influencing outcomes.
Purpose:
Preclinical data strongly suggest that all agents used for general anesthesia (GA) have detrimental effects on the developing brain. However, clinical data are unclear. The purpose of this study was to use a cohort of infants who underwent GA and understand their neurodevelopmental outcomes.
Methods:
A cohort of infants who underwent GA was selected between 2010 and 2011, and a control group was created. Data regarding GA, procedures, and outcomes were collected in 2015. The cohort was divided into controls, GA without surgery, GA and surgery once, and multiple general anesthetics. Both univariate and multivariate analysis were performed, and a p value of less than 0.05 was considered significant.
Results:
457 patients, 121 controls, and 336 cases were included. Median follow-up was 5.1years. While developmental delay and the need for speech therapy were higher with GA, this did not correlate with the duration of GA. Patients having GA for MRI had the poorest outcomes. Multivariate analysis using combined binary outcome measures for psychiatric and neurologic outcomes did not show any significant difference for duration of anesthesia, age at anesthesia, or induction and maintenance agents.
Conclusions:
These data suggest that GA during the first year of life may have few significant neurodevelopmental effects compared to controls. Additionally, the duration of GA did not correlate with neurodevelopmental outcomes.
Type Of Study:
Retrospective Case Control Cohort Study.
Level Of Evidence:
3 b (according to Oxford Center for EBM Levels of Evidence, March 2009, http://www.cebm.net/oxford-centre-evidence-based-medicine-levels-evidence-march-2009/).
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