Signs of Intracranial Hypertension, Hypermobility, and Craniocervical Obstructions in Patients With Myalgic Encephalomyelitis/Chronic Fatigue Syndrome. — CFSMEATLAS
Signs of Intracranial Hypertension, Hypermobility, and Craniocervical Obstructions in Patients With Myalgic Encephalomyelitis/Chronic Fatigue Syndrome.
Bragée, Björn, Michos, Anastasios, Drum, Brandon et al. · Frontiers in neurology · 2020 · DOI
Quick Summary
Researchers studied 229 people with severe ME/CFS to see if three physical conditions—unusual flexibility in joints, increased pressure around the brain, and blockages in the neck—might be connected to ME/CFS symptoms. They found these conditions were much more common in ME/CFS patients than in the general population. The study suggests these physical changes could help explain why people with ME/CFS experience their symptoms, though more research is needed to confirm this connection.
Why It Matters
This study provides potential structural explanations for ME/CFS symptoms that have previously been poorly understood, which could lead to new diagnostic criteria and targeted treatments. If confirmed, it suggests that investigating the nervous system's physical architecture—not just biochemistry—should be part of ME/CFS evaluation and management. For patients, this work validates that their symptoms may have identifiable physiological causes amenable to medical intervention.
Observed Findings
50% (115/229) of participants had hypermobility on Beighton Score assessment
83% (171/205) of brain MRI patients showed signs of possible intracranial hypertension, with 32% showing more severe indicators
56% (115/205) had cerebellar tonsillar descent below the McRae line into the foramen magnum
80% (100/125) of cervical spine MRI patients had craniocervical obstructions
96% of participants demonstrated allodynia (pain at harmless pressure), and 76% met criteria for fibromyalgia syndrome
Inferred Conclusions
Hypermobility, intracranial hypertension, and craniocervical obstructions are significantly overrepresented in ME/CFS patients compared to general population rates
These structural and biomechanical abnormalities may collectively contribute to ME/CFS symptoms in a meaningful proportion of patients
New diagnostic and therapeutic approaches targeting these physical findings warrant investigation in ME/CFS management
Remaining Questions
Does a causal relationship exist between these structural findings and ME/CFS symptoms, or do they simply co-occur in susceptible individuals?
Are these findings present in milder forms of ME/CFS, and do they correlate with symptom severity or disease duration?
What This Study Does Not Prove
This study does not prove that hypermobility, intracranial hypertension, or craniocervical obstructions directly cause ME/CFS symptoms—it only shows these conditions occur together more often than expected. The cross-sectional design cannot establish causality or determine whether these findings apply to milder cases of ME/CFS or broader populations. Without control groups matched for age, sex, and other factors, it remains unclear how specific these findings are to ME/CFS versus other conditions.
Tags
Symptom:PainFatigueSensory Sensitivity
Biomarker:Neuroimaging
Phenotype:Severe
Method Flag:No ControlsExploratory OnlyStrong PhenotypingSevere ME Included