Ignite Creation Date:
2025-12-24 @ 9:34 PM
Ignite Modification Date:
2026-01-02 @ 5:04 AM
Study NCT ID:
NCT02196532
Status:
UNKNOWN
Last Update Posted:
2014-07-22
First Post:
2014-07-17
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Retinal Nerve Fiber Layer Thickness Changes in Migraine: A Meta-Analysis of Case-control Studies
Sponsor:
Yifan Feng
Organization:
Study Overview
Official Title:
Retinal Nerve Fiber Layer Thickness Changes in Migraine: A Meta-Analysis of Case-control Studies
Status:
UNKNOWN
Status Verified Date:
2014-07
Last Known Status:
RECRUITING
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Optical coherence tomography (OCT) is a non-invasive retinal imaging technology that can provide high-resolution cross-sectional images of the peripapillary retinal nerve fiber layer (RNFL) and measure its thickness. A reduction of the RNFL thickness has been detected in several neurodegenerative diseases, such as multiple sclerosis, CADASIL and Alzheimer's disease. Different studies have reported RNFL changes also in migraine, is a common hereditary chronic neurovascular disorder, characterized by dysfunction of the autonomic nervous system. The pathophysiology of migraine has not been fully clarified, but there is increasing evidence that episodes of migraine with aura are initiated by a focal reduction in cerebral blood flow, which occurs most commonly in the posterior region of one hemisphere. Although vasoconstriction of cerebral and retinal blood vessels is a transient phenomenon, the chronic nature of the migraine might cause permanent structural abnormalities of the brain and also of the retina, which may correlate with RNFL thinning. Previous studies on this subject, however, reported contradicting results. Some investigations reported reductions of the RNFL thickness while others did not. In the present study, in order to determine whether RNFL thickness is reduced in migraine patients, the investigators performed a meta-analysis and systematically evaluated RNFL thickness measurements with OCT in a series of migraine patients and in the healthy control groups.
Detailed Description:
None
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: