Developmental anesthetic neurotoxicity: from animals to humans?

Related Experiment Video

Updated: May 12, 2026

Use of a Piglet Model for the Study of Anesthetic-induced Developmental Neurotoxicity (AIDN): A Translational Neuroscience Approach
06:38

Use of a Piglet Model for the Study of Anesthetic-induced Developmental Neurotoxicity (AIDN): A Translational Neuroscience Approach

Published on: June 11, 2017

Deshui Yu1, Bin Liu

  • 1Department of Anesthesiology, West China Hospital of Sichuan University, No.37 Wai Nan Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China.

Journal of Anesthesia
|April 17, 2013
PubMed

Insights

General anesthetics may harm developing brains, causing neuroapoptosis and cognitive issues in animals. Human studies are inconclusive, necessitating further research on anesthetic neurotoxicity in pediatric patients.

Area of Science:

  • Anesthesiology
  • Neuroscience
  • Pediatric Medicine

Background:

  • Animal studies suggest general anesthetics cause neuroapoptosis and neurocognitive impairment in immature brains.
  • This raises concerns about the safety of anesthetic use in pediatric patients.
  • Human retrospective studies have not confirmed these neurodevelopmental deficits.

Purpose of the Study:

  • To review current laboratory and clinical evidence on anesthetic neurotoxicity.
  • To discuss the implications for clinical anesthesia practice in children.
  • To highlight the need for prospective human trials.

Main Methods:

  • Review of existing animal studies on anesthetic effects on the developing brain.
  • Analysis of human retrospective studies investigating anesthesia and neurodevelopment.
  • Synthesis of evidence regarding anesthetic neurotoxicity.

Main Results:

  • Animal data indicates significant neurodevelopmental risks from general anesthetics.
  • Human retrospective data is insufficient to confirm or refute these findings.
  • The clinical relevance of animal findings remains uncertain.

Conclusions:

  • Direct extrapolation of animal findings to human pediatric anesthesia is currently unreasonable.
  • Prospective randomized controlled trials in humans are essential to determine anesthetic effects on neurodevelopment.
  • Further research is critical to guide safe clinical anesthesia practices for children.

More Related Videos

Adaptation of Microelectrode Array Technology for the Study of Anesthesia-induced Neurotoxicity in the Intact Piglet Brain08:23

Adaptation of Microelectrode Array Technology for the Study of Anesthesia-induced Neurotoxicity in the Intact Piglet Brain

Published on: May 12, 2018

The Serial Anesthesia Array for the High-Throughput Investigation of Volatile Agents Using Drosophila melanogaster06:27

The Serial Anesthesia Array for the High-Throughput Investigation of Volatile Agents Using Drosophila melanogaster

Published on: February 24, 2023

Related Concept Videos

Toxicity Testing in Animals01:23

Toxicity Testing in Animals

Toxicity tests in animals are grounded on two main assumptions: first, the effects observed in laboratory animals can be extrapolated to humans, especially when adjusted for body surface area; second, high-dose exposure in animals is essential to identify potential human hazards from lower doses. This is based on the quantal dose-response concept, which faces the challenge of extrapolating results from relatively few test animals to much larger human populations. For example, a 0.01% incidence...
Local Anesthetics: Adverse Effects01:12

Local Anesthetics: Adverse Effects

While local anesthetics are generally safe and well-tolerated, they can occasionally cause adverse effects that vary in severity. Local anesthetics can induce toxicity at two distinct levels. They can either produce local effects through direct contact with the neural elements or be absorbed into the bloodstream from the injection site, leading to systemic effects.
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...
Drug Toxicity: Dose-Dependent Reactions01:24

Drug Toxicity: Dose-Dependent Reactions

Drug toxicities can be stratified into pharmacological, pathological, or genotoxic based on their mechanisms. The incidence and severity of these toxicities generally increase with the drug's concentration in the body and exposure time.Pharmacological toxicity is evident when the therapeutic effects of drugs overshoot into adverse reactions in a predictable, dose-dependent manner. Central nervous system (CNS) depression from barbiturates is a classic example, with effects escalating from...