Resting-state functional connectivity in early postanaesthesia recovery is characterised by globally reduced anticorrelations
| Autor: | Kuang-Han Huang, Tommer Nir, Prantik Kundu, Helen Ahn, Mary Sano, Yael Jacob, Patrick J. McCormick, Arthur E. Schwartz, Stacie Deiner, Cheuk Y. Tang, Mark G. Baxter, Joshua S. Mincer, Bradley N. Delman, Jess W. Brallier |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Anesthesia General Sevoflurane 03 medical and health sciences 0302 clinical medicine Neuroscience and Neuroanaesthesia 030202 anesthesiology medicine Humans General anaesthesia Aged Aged 80 and over Resting state fMRI business.industry Functional connectivity Age Factors Brain Cognition Middle Aged Magnetic Resonance Imaging Oxygen Anesthesiology and Pain Medicine Anesthesia Anesthesia Recovery Period Female Cognition Disorders business medicine.drug |
| Zdroj: | Br J Anaesth |
| ISSN: | 0007-0912 |
| DOI: | 10.1016/j.bja.2020.06.058 |
| Popis: | Background A growing body of literature addresses the possible long-term cognitive effects of anaesthetics, but no study has delineated the normal trajectory of neural recovery attributable to anaesthesia alone in adults. We obtained resting-state functional MRI scans on 72 healthy human volunteers between ages 40 and 80 (median: 59) yr before, during, and after general anaesthesia with sevoflurane, in the absence of surgery, as part of a larger study on cognitive function postanaesthesia. Methods Region-of-interest analysis, independent component analysis, and seed-to-voxel analysis were used to characterise resting-state functional connectivity and to differentiate between correlated and anticorrelated connectivity before, during, and after general anaesthesia. Results Whilst positively correlated functional connectivity remained essentially unchanged across these perianaesthetic states, anticorrelated functional connectivity decreased globally by 35% 1 h after emergence from general anaesthesia compared with baseline, as seen by the region-of-interest analysis. This decrease corresponded to a consistent reduction in expression of canonical resting-state networks, as seen by independent component analysis. All measures returned to baseline 1 day later. Conclusions The normal perianaesthesia trajectory of resting-state connectivity in healthy adults is characterised by a transient global reduction in anticorrelated activity shortly after emergence from anaesthesia that returns to baseline by the following day. Clinical trial registration NCT02275026. |
| Databáze: | OpenAIRE |
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