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Related Concept Videos

General Anesthesia: Overview01:24

General Anesthesia: Overview

267
Anesthesia is a medical procedure that uses drugs for CNS suppression to enable painless surgeries and procedures. The selection of anesthetics is influenced by their pharmacokinetic properties, side effects, and patient characteristics. Various types of anesthesia include general, local, regional, spinal, and inhalational.
General anesthesia induces unconsciousness in the whole body, while the others target specific areas or sensations. It is administered to minimize adverse effects, maintain...
267
Stages of General Anesthesia01:22

Stages of General Anesthesia

574
Various sedation levels offer significant advantages in facilitating procedural interventions for patients undergoing medical or invasive surgical procedures. These levels span from anxiolysis to general anesthesia, providing a spectrum of sedative effects to cater to specific patient needs. Anxiolysis reduces anxiety and is achieved through minimal sedation, enabling patients to remain awake and responsive while feeling more at ease during the procedure. This level can benefit minor...
574
Parenteral Anesthetics: Overview01:24

Parenteral Anesthetics: Overview

184
Intravenous anesthetics are drugs administered parenterally to induce anesthesia or sedation. Propofol is a widely used agent formulated as a 1% emulsion in soybean oil, glycerol, and egg phosphatide. It induces rapid anesthesia primarily due to its rapid distribution from the bloodstream to target tissues and is metabolized in the liver. However, it can cause significant pain on injection and hypertriglyceridemia. Fospropofol, a water-based prodrug of propofol, lacks these adverse effects.
184
Inhalational Anesthetics: Overview01:20

Inhalational Anesthetics: Overview

436
Inhalation anesthetics are drugs that induce general anesthesia upon inhalation. They work by increasing the sensitivity of GABAA receptors or inhibiting NMDA receptors, leading to a decrease in central nervous system activity. The depth of anesthesia can be rapidly adjusted by changing the concentration of the inhaled gas. Some common examples of inhalational anesthetics include volatile liquids like isoflurane, desflurane, sevoflurane and gases like xenon and nitrous oxide. Isoflurane, a...
436
Local Anesthetics: Adverse Effects01:12

Local Anesthetics: Adverse Effects

480
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...
480

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Related Experiment Video

Updated: Aug 18, 2025

Adaptation of Microelectrode Array Technology for the Study of Anesthesia-induced Neurotoxicity in the Intact Piglet Brain
08:23

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

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Anesthesia and developing brain: What have we learned from recent studies.

Yixuan Niu1, Jia Yan1, Hong Jiang1

  • 1Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.

Frontiers in Molecular Neuroscience
|December 8, 2022
PubMed
Summary
This summary is machine-generated.

General anesthetics may harm developing brains, raising concerns about neurodevelopmental impairment. Further research is needed to understand anesthesia neurotoxicity and protect immature brains.

Keywords:
cognitive dysfunctiondeveloping braingeneral anesthesianeurodevelopmental impairmentneurotoxicity

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

  • Anesthesiology
  • Neuroscience
  • Developmental Biology

Background:

  • Anesthesia is essential for surgery, but its safety for immature brains is debated.
  • Neurodevelopmental impairment from anesthesia is a significant health concern.
  • Existing research includes clinical debates and preclinical studies exploring anesthesia's neurotoxic mechanisms.

Purpose of the Study:

  • To review current clinical and preclinical findings on anesthesia's effects on immature brains.
  • To identify potential therapeutic targets for protecting developing brains from anesthetic neurotoxicity.
  • To discuss the limitations of current research models and propose integrated approaches.

Main Methods:

  • Review of clinical studies examining anesthesia exposure effects.
  • Analysis of preclinical research, including rodent models, on anesthesia neurotoxicity mechanisms.
  • Discussion of non-human primate (NHP) models for improved human relevance.
  • Proposal of combining single-cell sequencing in NHPs with in vivo validation in rodents.

Main Results:

  • Clinical studies continue to debate the impact of single vs. multiple anesthesia exposures.
  • Preclinical studies investigate anesthesia neurotoxicity mechanisms but face challenges in clinical relevance.
  • NHP models offer greater genetic similarity to humans but are costly.
  • Integrated approaches using NHP single-cell sequencing and rodent validation are suggested.

Conclusions:

  • The neurotoxicity of general anesthetics on immature brains requires further investigation.
  • Understanding anesthesia's impact on neurodevelopment is critical for patient safety.
  • Advanced research methodologies, including comparative models and integrated technologies, are necessary to elucidate anesthesia neurotoxicity mechanisms and develop protective strategies.