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Altered brain volume in neuropathic pain patients

Altered brain volume in neuropathic pain patients - Altered brain volume in neuropathic pain patients

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000033202
Enrollment
180
Registered
2018-07-01
Start date
2015-03-13
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Classiccal trigeminal neuralgia and neuropathic pain due to facial trauma (painful post-traumatic trigeminal neuropathy)

Interventions

MRI examination is done once during the study period.

Sponsors

Tokyo Medical and Dntal University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Control group: Sixty males and female healthy adults aged 20 to 80. 2. Trigeminal neuralgia group:Sixty males and female patients with classical trigeminal neuralgia aged 20 to 80 years visited the Orofacia Pain Clinic at the Tokyo Medical and Dntal University, Dental Hosipital. 3. Neuropathic pain due to facial trauma(painful post-traumatic trigeminal neuropathy)group: Sixty males and female patients with neuropathic pain due to injury of the facial area aged 20 to 80 years who visited the Orofacia Pain Clinic at the Tokyo Medical and Dntal University, Dental Hosipital.

Exclusion criteria

Exclusion criteria: 1. Persons who have had some sort of pain in the maxillofacial area other than neuropathic pain due to trigeminal neuralgia or damage to the facial area by 4 weeks in advance. (In the control group, those who have had a history of some kind of pain in the maxillofacial area by 4 weeks before are excluded.) 2. Persons who have a history of neuraldia or psychiatric disorders in other parts. 3. Persons who have acute or chronic disease (multiple sclerosis, diabetes, herpes zoster etc.) causing pain. 4. Persons who are alcohol-dependent. 5. Persons wearing cardiac pacemakers. 6. Persons who have metals (arterial clips, intravascular stents, plates and bolts for repair and fixation, etc.) in the body. 7. Persons who are claustrophobic.

Design outcomes

Primary

MeasureTime frame
Changes in brain volume and cortical thickness of grey matter obtained from MRI images are compared in typical trigeminal neuralgia group, painful post-traumatic trigeminal neuropathy group, control group of healthy subjects.

Countries

Japan

Contacts

Public ContactYoko Yamazaki

Tokyo Medical and Dntal University, Dental Hosipital Orofacial Pain Clinic

yamazaki-yo.ofpm@tmd.ac.jp03-5803-5762

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026