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Adaptation of Microelectrode Array Technology for the Study of Anesthesia-induced Neurotoxicity in the Intact Piglet Brain
Published on: May 12, 2018
Review article: Neurotoxicity of anesthetic drugs in the developing brain
1Department of Anesthesia and Perioperative Care, University of California San Francisco, Box 0464, Room U286, 513 Parnassus Ave., San Francisco, CA 94143, USA. stratman@anesthesia.ucsf.edu
Insights
Pediatric anesthesia may harm infant brain development, causing neurocognitive decline. Research is ongoing to understand risks, mechanisms, and safe anesthetic practices for children.
Area of Science:
- Neuroscience
- Anesthesiology
- Developmental Pediatrics
Background:
- Infantile anesthesia has been shown to cause neurocognitive decline in animal models, raising concerns for human pediatric populations.
- The anesthesia community and regulatory bodies are actively investigating the potential long-term cognitive effects of anesthesia in children.
Purpose of the Study:
- To review current knowledge regarding the risks of pediatric anesthesia to long-term cognitive function.
- To explore proposed mechanisms underlying anesthesia-induced cognitive decline and potential treatment strategies.
- To discuss findings from comparative animal studies on anesthetic neurotoxicity.
Main Methods:
- Review of existing scientific literature on anesthesia and neurodevelopmental outcomes.
- Analysis of proposed mechanisms of anesthesia-induced neurotoxicity.
- Summary of findings from animal studies comparing different anesthetic agents and durations.
Main Results:
- Animal studies indicate that anesthesia can induce neuronal damage and progressive neurocognitive deficits in infantile subjects.
- Several mechanisms for anesthesia-induced cognitive decline have been proposed, requiring further investigation.
- Early comparative animal studies are beginning to identify potential differences in neurotoxicity among anesthetic agents.
Conclusions:
- Evidence suggests a potential risk of anesthesia-induced cognitive decline in humans, necessitating further research.
- Understanding the mechanisms and identifying safe anesthetic practices are crucial for preventing and treating potential adverse effects.
- The SmartTots initiative is vital for funding research to address these high-priority concerns for pediatric anesthesia.
Abstract:
Anesthesia kills neurons in the brain of infantile animals, including primates, and causes permanent and progressive neurocognitive decline. The anesthesia community and regulatory authorities alike are concerned that is also true in humans. In this review, I summarize what we currently know about the risks of pediatric anesthesia to long-term cognitive function. If anesthesia is discovered to cause cognitive decline in humans, we need to know how to prevent and treat it. Prevention requires knowledge of the mechanisms of anesthesia-induced cognitive decline. This review gives an overview of some of the mechanisms that have been proposed for anesthesia-induced cognitive decline and discusses possible treatment options. If anesthesia induces cognitive decline in humans, we need to know what type and duration of anesthetic is safe, and which, if any, is not safe. This review discusses early results of comparative animal studies of anesthetic neurotoxicity. Until we know if and how pediatric anesthesia affects cognition in humans, a change in anesthetic practice would be premature, not guided by evidence of better alternatives, and therefore potentially dangerous. The SmartTots initiative jointly supported by the International Anesthesia Research Society and the Food and Drug Administration aims to fund research designed to shed light on these issues that are of high priority to the anesthesia community and the public alike and therefore deserves the full support of these interest groups.
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