ArticleScientific reports2019
Resting-state brain functional connectivity in patients with chronic pain who responded to subanesthetic-dose ketamine.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Can EEG-Neurofeedback Training Enhance Effective Connectivity in People With Chronic Secondary Musculoskeletal Pain? A Secondary Analysis of a Feasibility Randomized Controlled Clinical Trial.Brain and behavior · 2025Trial
- Closed-Loop Infraslow Brain-Computer Interface can Modulate Cortical Activity and Connectivity in Individuals With Chronic Painful Knee Osteoarthritis: A Secondary Analysis of a Randomized Placebo-Controlled Clinical Trial.Clinical EEG and neuroscience · 2025Trial
- Task-evoked network connectivity and pain regulation success in chronic low back pain.Neuroimage. Reports · 2026Article
- Neural fingerprint of the dark triad: Resting state BOLD power (fALFF) alterations in executive and default mode networks.Cognitive, affective & behavioral neuroscience · 2026Article
- Resting-state brain functional connectivity in patients with chronic intractable pain who respond to spinal cord stimulation therapy.British journal of anaesthesia · 2025Article
- Resting-state BOLD temporal variability of the default mode network predicts spontaneous mind wandering, which is negatively associated with mindfulness skills.Frontiers in human neuroscience · 2025Article
- Ketamine in neuropsychiatric disorders: an update.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024Review
- Dissociation between individual differences in self-reported pain intensity and underlying fMRI brain activation.Nature communications · 2022Article
- Structural and functional brain networks of individual differences in trait anger and anger control: An unsupervised machine learning study.The European journal of neuroscience · 2022Article
- Targeting Affective Mood Disorders With Ketamine to Prevent Chronic Postsurgical Pain.Frontiers in pain research (Lausanne, Switzerland) · 2022Review
- Altered resting state functional connectivity in youth with congenital heart disease operated during infancy.PloS one · 2022Article
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ketamine has been used to treat chronic pain; however, it is still unknown as to what types of chronic pain is ketamine effective against. To identify the effect of administration of subanesthetic-dose ketamine in patients with chronic pain and to clarify the mechanism of the effect, we retrospectively investigated brain functional connectivity using resting-state functional magnetic resonance imaging (rs-fMRI). Patients were divided into responders (Group R: ≥50% improvement on Numerical Rating Scale) and non-responders (Group NR). We compared the differences in terms of brain functional connectivity by seed-to-voxel correlation analysis. Two-sample t-test revealed significant lower connectivity between the medial prefrontal cortex (mPFC) and precuneus in Group R. We also found a significant negative correlation between the improvement rate and functional connectivity strength between the mPFC and precuneus. These findings suggest that subanesthetic-dose ketamine is effective in patients with chronic pain whose brain functional connectivity between the mPFC and precuneus is low. We believe that the current study explored for the first time the correlation between brain functional connectivity and the effect of subanesthetic-dose ketamine for chronic pain and indicated the possibility of use of the predictive marker in pharmacological treatment of chronic pain.
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