Evidence map›Paper›PMID 33439389›Full record

SynthesisNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2021

Retinal nerve fiber layer changes in migraine: a systematic review and meta-analysis.

XiaoGuang Lin, ZhongQuan Yi, XueLing Zhang, QinQin Liu, Hui Zhang, RuYuan Cai, ChaoChun Chen, HongJie Zhang, PanWen Zhao, PingLei Pan

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 3 pooled it
3.2field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 3 syntheses or guidelines pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Optical coherence tomography is a useful tool for monitoring treatment response in migraine: a prospective longitudinal study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Retinal connections to migraine.Frontiers in neurology
    Review
  15. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

XiaoGuang LinDepartment of Neurology, Affiliated Suqian Hospital of Xuzhou Medical University, Suqian, People's Republic of China.
ZhongQuan YiDepartment of Central Laboratory, Affiliated Yancheng Hospital, School of Medicine, Southeast University, West Xindu Road 2#, Yancheng, Jiangsu Province, People's Republic of China.
XueLing ZhangDepartment of Neurology, Affiliated Suqian Hospital of Xuzhou Medical University, Suqian, People's Republic of China.
QinQin LiuDepartment of Neurology, Affiliated Suqian Hospital of Xuzhou Medical University, Suqian, People's Republic of China.
Hui ZhangDepartment of Central Laboratory, Affiliated Yancheng Hospital, School of Medicine, Southeast University, West Xindu Road 2#, Yancheng, Jiangsu Province, People's Republic of China.
RuYuan CaiDepartment of Ophthalmology, Affiliated Yancheng Hospital, School of Medicine, Southeast University, Yancheng, People's Republic of China.
ChaoChun ChenDepartment of Ophthalmology, Affiliated Yancheng Hospital, School of Medicine, Southeast University, Yancheng, People's Republic of China.
HongJie Zhang *Department of Ophthalmology, Affiliated Yancheng Hospital, School of Medicine, Southeast University, Yancheng, People's Republic of China.
PanWen Zhao *Department of Central Laboratory, Affiliated Yancheng Hospital, School of Medicine, Southeast University, West Xindu Road 2#, Yancheng, Jiangsu Province, People's Republic of China. zhaopanwen8@163.com.ORCID http://orcid.org/0000-0002-0251-8597
PingLei Pan *Department of Central Laboratory, Affiliated Yancheng Hospital, School of Medicine, Southeast University, West Xindu Road 2#, Yancheng, Jiangsu Province, People's Republic of China. panpinglei@163.com.
Yancheng Third People's Hospital · CNXuzhou Medical College · CN

Funding

National Natural Science Foundation of China Grant No. 81601161
6 · The paper itself

Abstract

backgroundMigraine is one of the most common disabling diseases in the world. Its recurrent attacks may lead to abnormalities in the structure of the brain and retina. An increasing number of studies have investigated retinal nerve fiber layer (RNFL) thickness alterations in migraine by the optical coherence tomography (OCT); however, no consensus has yet reached.

methodWe searched Pubmed, Embase, and Web of Science databases to identify studies that investigated RNFL thickness in migraine by OCT measurement and performed a meta-analysis of eligible studies.

resultsTwenty-six studies were included in the meta-analysis, comprising 1530 migraine patients and 1105 healthy controls. The mean RNFL thickness was thinner in the migraine group compared to the control group (SMD =- 0.53). In the subgroup analyses, RNFL thickness were decreased most significantly in the superior (SMD = - 0.71) and inferior (SMD = - 0.63) quadrants among all quadrants. Migraine with aura (SMD = - 0.91) showed a greater effect size of RNFL thickness reduction than migraine without aura (SMD =- 0.47). Spectral-domain OCT (SMD = - 0.55) seems more sensitive to detect RNFL thickness reduction than time-domain OCT (SMD = - 0.44). In addition, age, sex, disease duration, attack frequency, and intraocular pressure were not significantly associated with RNFL thickness.

conclusionsThe findings from our comprehensive meta-analysis with large datasets strengthen the clinical evidence of the RNFL thickness reduction in migraine. RNFL thickness via spectral-domain OCT measurement demonstrates the potential role in differentiating patients with migraine, especially migraine with aura, from healthy controls.

Indexed as

Migraine DisordersNerve FibersHumansRetinaRetinal Ganglion CellsTomography, Optical CoherenceMigraineMigraine with auraMigraine without auraOptical coherence tomographyRetinal nerve fiber layer

Identifiers

PMID33439389
OpenAlexW3118276916

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.