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Anesthesia and the developing brain: A way forward for laboratory and clinical research

Disma, Nicola
O'Leary, James D
Loepke, Andreas W
Brambrink, Ansgar M
Becke, Karin
Clausen, Nicola G
De Graaff, Jurgen C
Liu, Fang
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Published in Paediatric Anaesthesia. 2018, vol. 28, no. 9, p. 758-763
Abstract All commonly used general anesthetics have been shown to cause neurotoxicity in animal models, including nonhuman primates. Opinion, however, remains divided over how cumulative evidence from preclinical and human studies in this field should be interpreted and its translation to current practices in pediatric anesthesia and surgery. A group of international experts in laboratory and clinical sciences recently convened in Genoa, Italy, to evaluate the current state of both laboratory and clinical research and discuss future directions for basic, translational, and clinical studies in this field. This paper describes those discussions and conclusions. A central goal identified was the importance of continuing to pursue laboratory research efforts to better understand the biological pathways underlying anesthesia neurotoxicity. The distinction between basic and translational experimental designs in this field was highlighted, and it was acknowledged that it will be important for future animal research to try to causally link structural changes with long-term cognitive abnormalities. While inherent limitations will continue to affect the ability of even large observational cohorts to determine if anesthesia impacts neurodevelopment or behavioral outcomes, the importance of conducting further large well-designed cohort studies was also emphasized. Adequately powered cohorts could clarify which populations are at increased risk, provide information on environmental and healthcare-related risk modifiers, and guide future interventional trials. If anesthetics cause structural or functional adverse neurological effects in young children, alternative or mitigating strategies need to be considered. While protective or mitigating strategies have been repeatedly studied in animals, there are currently no human data to support alternative anesthetic strategies in clinical practice. Lastly, it was noted that there is still considerable debate over the clinical relevance of anesthesia neurotoxicity, and the need to evaluate the impact of other aspects of perioperative care on neurodevelopment must also be considered.
Keywords Anesthesia/adverse effects/methodsAnesthetics/administration & dosage/adverse effectsAnimalsBrain/drug effects/growth & developmentChildChild Development/drug effectsHumansNeurotoxicity Syndromes/etiology
PMID: 30117228
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Research group Anesthésie et neurosciences (883)
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DISMA, Nicola et al. Anesthesia and the developing brain: A way forward for laboratory and clinical research. In: Paediatric Anaesthesia, 2018, vol. 28, n° 9, p. 758-763. doi: 10.1111/pan.13455 https://archive-ouverte.unige.ch/unige:128647

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Deposited on : 2020-01-13

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