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Exploring Brainwave Differences in Stroke Patients with and without Central Pain

A Comparative Study of Quantitative EEG Characteristics According to the Presence or Absence of Central Neuropathic Pain After Stroke

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CRIS
Registry ID
KCT0011088
Enrollment
50
Registered
2025-10-30
Start date
2026-01-05
Completion date
Unknown
Last updated
2025-11-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

None listed

Sponsors

Wonkwang University, Gwangju Medical Center
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Common Inclusion Criteria ? Male or female patients aged 19 years or older. ? Patients clinically and radiologically diagnosed with stroke, including ischemic stroke, hemorrhagic stroke, or subarachnoid hemorrhage (ICD-10 codes I60–I63) ? At least 3 months (90 days) have elapsed since the onset of stroke. ? Patients who are alert, able to communicate verbally, and capable of EEG measurement without expressive or cognitive impairment. ? Patients who understand the purpose of the study and voluntarily provide written informed consent to participate. 2) Inclusion Criteria for the Central Post-Stroke Neuropathic Pain (CPSP) Group ? Patients who developed new pain after stroke, characterized as persistent, burning, or tingling sensations, sometimes evoked by cold stimuli. ? The distribution of pain corresponds neuroanatomically to the lesion confirmed on neuroimaging. ? Neuropathic Pain Symptom Inventory (NPSI) total score = 20 3) Inclusion Criteria for the Non-CPSP (Control) Group ? Patients who meet all the common inclusion criteria but do not fulfill the CPSP group inclusion criteria.

Exclusion criteria

Exclusion criteria: 1) Patients with chronic pain existing prior to the onset of stroke. 2) Patients with other potential causes of pain, such as complex regional pain syndrome (CRPS), post-stroke shoulder pain, peripheral neuropathy, fibromyalgia, migraine, or other musculoskeletal disorders. • Supporting criteria: ? Pain that worsens or improves with specific movements or postures (e.g., shoulder pain aggravated by joint movement, knee osteoarthritis pain). ? Pain directly associated with inflammation or injury of local joints, muscles, or soft tissues (e.g., bursitis, tendinopathy, post-traumatic pain). ? Pain with a somatic segmental (dermatomal) distribution (e.g., lumbar radiculopathy, sciatica). ? Pain with typical peripheral neuropathic features, such as glove-and-stocking type sensory disturbances (e.g., diabetic neuropathy). ? Paroxysmal headache patterns (e.g., migraine, cluster headache). 3) Patients with neurological disorders other than stroke, such as Parkinson’s disease, dementia, multiple sclerosis, or epilepsy. 4) Patients diagnosed with severe psychiatric disorders, including major depressive disorder, schizophrenia, or anxiety disorders. 5) Individuals who are, in the investigator’s judgment, unable to participate in the clinical study due to medical or other reasons.

Design outcomes

Primary

MeasureTime frame
Asymmetry features of power in major frequency bands (delta, theta, alpha, beta, gamma) during eyes-open (EO) and eyes-closed (EC) conditions.

Secondary

MeasureTime frame
Delta/Alpha Ratio (DAR);(Delta + Theta)/(Alpha + Beta) Ratio (DTABR)

Countries

Korea, Republic of

Contacts

Public ContactCheol-Hyun Kim

Wonkwang University, Gwangju Medical Center

user2307@hanmail.net+82-62-670-6422

Outcome results

None listed

Source: CRIS (via WHO ICTRP) · Data processed: Feb 4, 2026